path: root/src/auditor/test-auditor.sh

#!/bin/bash
#
#  This file is part of TALER
#  Copyright (C) 2014-2021 Taler Systems SA
#
#  TALER is free software; you can redistribute it and/or modify it under the
#  terms of the GNU General Public License as published by the Free Software
#  Foundation; either version 3, or (at your option) any later version.
#
#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
#  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License along with
#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/license>
#
#
# Setup database which was generated from a perfectly normal
# exchange-wallet interaction and run the auditor against it.
#
# Check that the auditor report is as expected.
#
# Requires 'jq' tool and Postgres superuser rights!
set -eu
#set -x

# Set of numbers for all the testcases.
# When adding new tests, increase the last number:
ALL_TESTS=`seq 0 33`

# $TESTS determines which tests we should run.
# This construction is used to make it easy to
# only run a subset of the tests. To only run a subset,
# pass the numbers of the tests to run as the FIRST
# argument to test-auditor.sh, i.e.:
#
# $ test-auditor.sh "1 3"
#
# to run tests 1 and 3 only.  By default, all tests are run.
#
TESTS=${1:-$ALL_TESTS}

# Global variable to run the auditor processes under valgrind
# VALGRIND=valgrind
VALGRIND=""

# Number of seconds to let libeuifn background
# tasks apply a cycle of payment submission and
# history request.
LIBEUFIN_SETTLE_TIME=1

# Exit, with status code "skip" (no 'real' failure)
function exit_skip() {
    echo "SKIPPING test: $1"
    exit 77
}

# Exit, with error message (hard failure)
function exit_fail() {
    echo "FAILING test: $1"
    exit 1
}

# Clean up leftovers on start
rm -f libeufin-sandbox.pid libeufin-nexus.pid

function stop_libeufin()
{
    echo "killing libeufin..."
    if test -f libeufin-sandbox.pid
    then
        echo "Killing libeufin sandbox"
        PID=`cat libeufin-sandbox.pid 2> /dev/null`
        kill $PID 2> /dev/null || true
        wait $PID || true
        rm libeufin-sandbox.pid
    fi
    if test -f libeufin-nexus.pid
    then
        echo "Killing libeufin nexus"
        PID=`cat libeufin-nexus.pid 2> /dev/null`
        kill $PID 2> /dev/null || true
        wait $PID || true
        rm libeufin-nexus.pid
    fi
    echo "killing libeufin DONE"
}

# Cleanup exchange and libeufin between runs.
function cleanup()
{
    if test ! -z ${EPID:-}
    then
        echo -n "Stopping exchange $EPID..."
        kill -TERM $EPID
        wait $EPID || true
        echo "DONE"
        unset EPID
    fi
    stop_libeufin
}

# Cleanup to run whenever we exit
function exit_cleanup()
{
    echo "Running exit-cleanup"
    if test ! -z ${POSTGRES_PATH:-}
    then
        echo "Stopping Postgres at ${POSTGRES_PATH}"
        ${POSTGRES_PATH}/pg_ctl -D $TMPDIR -l /dev/null stop &> /dev/null || true
    fi
    cleanup
    for n in `jobs -p`
    do
        kill $n 2> /dev/null || true
    done
    wait || true
    echo "DONE"
}

# Install cleanup handler (except for kill -9)
trap exit_cleanup EXIT

function launch_libeufin () {
    export LIBEUFIN_NEXUS_DB_CONNECTION="jdbc:sqlite:${DB}-nexus.sqlite3"
    libeufin-nexus serve --port 8082 \
                   2> libeufin-nexus-stderr.log \
                   > libeufin-nexus-stdout.log &
    echo $! > libeufin-nexus.pid
    export LIBEUFIN_SANDBOX_DB_CONNECTION="jdbc:sqlite:${DB}-sandbox.sqlite3"
    export LIBEUFIN_SANDBOX_ADMIN_PASSWORD=secret
    libeufin-sandbox serve --port 18082 \
                     > libeufin-sandbox-stdout.log \
                     2> libeufin-sandbox-stderr.log &
    echo $! > libeufin-sandbox.pid
}

# Downloads new transactions from the bank.
function nexus_fetch_transactions () {
    export LIBEUFIN_NEXUS_USERNAME=exchange
    export LIBEUFIN_NEXUS_PASSWORD=x
    export LIBEUFIN_NEXUS_URL=http://localhost:8082/
    libeufin-cli accounts fetch-transactions \
                 --range-type since-last --level report exchange-nexus > /dev/null
    unset LIBEUFIN_NEXUS_USERNAME
    unset LIBEUFIN_NEXUS_PASSWORD
    unset LIBEUFIN_NEXUS_URL
}


# Instruct Nexus to all the prepared payments (= those
# POSTed to /transfer by the exchange).
function nexus_submit_to_sandbox () {
    export LIBEUFIN_NEXUS_USERNAME=exchange
    export LIBEUFIN_NEXUS_PASSWORD=x
    export LIBEUFIN_NEXUS_URL=http://localhost:8082/
    libeufin-cli accounts submit-payments exchange-nexus
    unset LIBEUFIN_NEXUS_USERNAME
    unset LIBEUFIN_NEXUS_PASSWORD
    unset LIBEUFIN_NEXUS_URL
}


# Operations to run before the actual audit
function pre_audit () {
    # Launch bank
    echo -n "Launching bank"
    EXCHANGE_URL=`taler-config -c $CONF -s EXCHANGE -o BASE_URL`
    launch_libeufin
    for n in `seq 1 80`
    do
        echo -n "."
        sleep 0.1
        OK=1
        wget http://localhost:18082/ -o /dev/null -O /dev/null >/dev/null && break
        OK=0
    done
    if [ 1 != $OK ]
    then
        exit_skip "Failed to launch Sandbox"
    fi
    sleep $LIBEUFIN_SETTLE_TIME
    for n in `seq 1 80`
    do
        echo -n "."
        sleep 0.1
        OK=1
        wget http://localhost:8082/ -o /dev/null -O /dev/null >/dev/null && break
        OK=0
    done
    if [ 1 != $OK ]
    then
        exit_skip "Failed to launch Nexus"
    fi
    echo " DONE"
    if test ${1:-no} = "aggregator"
    then
        echo -n "Running exchange aggregator ..."
        taler-exchange-aggregator -y -L INFO -t -c $CONF 2> aggregator.log || exit_fail "FAIL"
        echo " DONE"
        echo -n "Running exchange closer ..."
        taler-exchange-closer -L INFO -t -c $CONF 2> closer.log || exit_fail "FAIL"
        echo " DONE"
        echo -n "Running exchange transfer ..."
        taler-exchange-transfer -L INFO -t -c $CONF 2> transfer.log || exit_fail "FAIL"
        echo " DONE"
	    echo -n "Running Nexus payment submitter ..."
	    nexus_submit_to_sandbox
	    echo " DONE"
	    # Make outgoing transactions appear in the TWG:
	    echo -n "Download bank transactions ..."
	    nexus_fetch_transactions
	    echo " DONE"
    fi
}

# actual audit run
function audit_only () {
    # Run the auditor!
    echo -n "Running audit(s) ..."

    # Restart so that first run is always fresh, and second one is incremental
    taler-auditor-dbinit -r -c $CONF
    $VALGRIND taler-helper-auditor-aggregation -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-aggregation.json 2> test-audit-aggregation.log || exit_fail "aggregation audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-aggregation -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-aggregation-inc.json 2> test-audit-aggregation-inc.log || exit_fail "incremental aggregation audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-coins -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-coins.json 2> test-audit-coins.log || exit_fail "coin audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-coins -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-coins-inc.json 2> test-audit-coins-inc.log || exit_fail "incremental coin audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-deposits -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-deposits.json 2> test-audit-deposits.log || exit_fail "deposits audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-deposits -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-deposits-inc.json 2> test-audit-deposits-inc.log || exit_fail "incremental deposits audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-reserves -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-reserves.json 2> test-audit-reserves.log || exit_fail "reserves audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-reserves -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-reserves-inc.json 2> test-audit-reserves-inc.log || exit_fail "incremental reserves audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-wire -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-wire.json 2> test-wire-audit.log || exit_fail "wire audit failed"
    echo -n "."
    $VALGRIND taler-helper-auditor-wire -i -L DEBUG -c $CONF -m $MASTER_PUB > test-audit-wire-inc.json 2> test-wire-audit-inc.log || exit_fail "wire audit inc failed"
    echo -n "."

    echo " DONE"
}


# Cleanup to run after the auditor
function post_audit () {
    taler-exchange-dbinit -c $CONF -g || exit_fail "exchange DB GC failed"

    cleanup
    echo -n "TeXing ."
    taler-helper-auditor-render.py test-audit-aggregation.json test-audit-coins.json test-audit-deposits.json test-audit-reserves.json test-audit-wire.json < ../../contrib/auditor-report.tex.j2 > test-report.tex || exit_fail "Renderer failed"

    echo -n "."
    timeout 10 pdflatex test-report.tex >/dev/null || exit_fail "pdflatex failed"
    echo -n "."
    timeout 10 pdflatex test-report.tex >/dev/null
    echo " DONE"
}


# Run audit process on current database, including report
# generation.  Pass "aggregator" as $1 to run
# $ taler-exchange-aggregator
# before auditor (to trigger pending wire transfers).
# Pass "drain" as $2 to run a drain operation as well.
function run_audit () {
    pre_audit ${1:-no}
    if test ${2:-no} = "drain"
    then
        echo -n "Starting exchange..."
        taler-exchange-httpd -c "${CONF}" -L INFO 2> exchange-httpd-drain.err &
        EPID=$!

        # Wait for all services to be available
        for n in `seq 1 50`
        do
            echo -n "."
            sleep 0.1
            OK=0
            # exchange
            wget http://localhost:8081/seed -o /dev/null -O /dev/null >/dev/null || continue
            OK=1
            break
        done
        echo "... DONE."
        export CONF

        echo -n "Running taler-exchange-offline drain "

        taler-exchange-offline -L DEBUG -c "${CONF}" \
                               drain TESTKUDOS:0.1 exchange-account-1 payto://iban/SANDBOXX/DE360679?receiver-name=Exchange+Drain \
                               upload \
                               2> taler-exchange-offline-drain.log || exit_fail "offline draining failed"
        kill -TERM $EPID
        wait $EPID || true
        unset EPID
        echo -n "Running taler-exchange-drain ..."
        echo "\n" | taler-exchange-drain -L DEBUG -c $CONF 2> taler-exchange-drain.log || exit_fail "FAIL"
        echo " DONE"

        echo -n "Running taler-exchange-transfer ..."
        taler-exchange-transfer -L INFO -t -c $CONF 2> drain-transfer.log || exit_fail "FAIL"
        echo " DONE"

        export LIBEUFIN_NEXUS_USERNAME=exchange
        export LIBEUFIN_NEXUS_PASSWORD=x
        export LIBEUFIN_NEXUS_URL=http://localhost:8082/
        PAIN_UUID=`libeufin-cli accounts list-payments exchange-nexus | jq .initiatedPayments[] | jq 'select(.submitted==false)' | jq -r .paymentInitiationId`
        if test -z "${PAIN_UUID}"
        then
            echo -n "Payment likely already submitted, running submit-payments without UUID anyway ..."
            libeufin-cli accounts submit-payments exchange-nexus
        else
            echo -n "Running submitting payment ${PAIN_UUID} ..."
            libeufin-cli accounts submit-payments --payment-uuid ${PAIN_UUID} exchange-nexus
        fi
        echo " DONE"
    fi
    audit_only
    post_audit
}


# Do a full reload of the (original) database
function full_reload()
{
    echo "Doing full reload of the database ($BASEDB - $DB)... "
    dropdb $DB 2> /dev/null || true
    rm -f ${DB}-nexus.sqlite3 ${DB}-sandbox.sqlite3 2> /dev/null || true # libeufin
    createdb -T template0 $DB || exit_skip "could not create database $DB (at $PGHOST)"
    # Import pre-generated database, -q(ietly) using single (-1) transaction
    psql -Aqt $DB -q -1 -f ${BASEDB}.sql > /dev/null || exit_skip "Failed to load database $DB from ${BASEDB}.sql"
    echo "DONE"
    echo -n "Loading libeufin Nexus basedb: ${BASEDB}-libeufin-nexus.sql "
    sqlite3 ${DB}-nexus.sqlite3 < ${BASEDB}-libeufin-nexus.sql || exit_skip "Failed to load Nexus database"
    echo "DONE"
    echo -n "Loading libeufin Sandbox basedb: ${BASEDB}-libeufin-sandbox.sql "
    sqlite3 ${DB}-sandbox.sqlite3 < ${BASEDB}-libeufin-sandbox.sql || exit_skip "Failed to load Sandbox database"
    echo "DONE"
}


function test_0() {

    echo "===========0: normal run with aggregator==========="
    run_audit aggregator
    echo "Checking output"
    # if an emergency was detected, that is a bug and we should fail
    echo -n "Test for emergencies... "
    jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency detected in ordinary run" || echo PASS
    echo -n "Test for deposit confirmation emergencies... "
    jq -e .deposit_confirmation_inconsistencies[0] < test-audit-deposits.json > /dev/null && exit_fail "Unexpected deposit confirmation inconsistency detected" || echo PASS
    echo -n "Test for emergencies by count... "
    jq -e .emergencies_by_count[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency by count detected in ordinary run" || echo PASS

    echo -n "Test for wire inconsistencies... "
    jq -e .wire_out_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire out inconsistency detected in ordinary run"
    jq -e .reserve_in_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected reserve in inconsistency detected in ordinary run"
    jq -e .misattribution_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected misattribution inconsistency detected in ordinary run"
    jq -e .row_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected row inconsistency detected in ordinary run"
    jq -e .denomination_key_validity_withdraw_inconsistencies[0] < test-audit-reserves.json > /dev/null && exit_fail "Unexpected denomination key withdraw inconsistency detected in ordinary run"
    jq -e .row_minor_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected minor row inconsistency detected in ordinary run"
    jq -e .lag_details[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected lag detected in ordinary run"
    jq -e .wire_format_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire format inconsistencies detected in ordinary run"


    # TODO: check operation balances are correct (once we have all transaction types and wallet is deterministic)
    # TODO: check revenue summaries are correct (once we have all transaction types and wallet is deterministic)

    echo PASS

    LOSS=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss from aggregation, got unexpected loss of $LOSS"
    fi
    LOSS=`jq -r .total_bad_sig_loss < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss from coins, got unexpected loss of $LOSS"
    fi
    LOSS=`jq -r .total_bad_sig_loss < test-audit-reserves.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss from reserves, got unexpected loss of $LOSS"
    fi

    echo -n "Test for wire amounts... "
    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_misattribution_in < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total misattribution in wrong, got $WIRED"
    fi
    echo PASS

    echo -n "Checking for unexpected arithmetic differences "
    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-aggregation.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from aggregations, got unexpected plus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-aggregation.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from aggregation, got unexpected minus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from coins, got unexpected plus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from coins, got unexpected minus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-reserves.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from reserves, got unexpected plus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-reserves.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from reserves, got unexpected minus of $LOSS"
    fi

    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-aggregation.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from aggregations detected in ordinary run"
    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from coins detected in ordinary run"
    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-reserves.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from reserves detected in ordinary run"
    echo PASS

    echo -n "Checking for unexpected wire out differences "
    jq -e .wire_out_inconsistencies[0] < test-audit-aggregation.json > /dev/null && exit_fail "Unexpected wire out inconsistencies detected in ordinary run"
    echo PASS

    # cannot easily undo aggregator, hence full reload
    full_reload

}


# Run without aggregator, hence auditor should detect wire
# transfer lag!
function test_1() {

    echo "===========1: normal run==========="
    run_audit

    echo "Checking output"
    # if an emergency was detected, that is a bug and we should fail
    echo -n "Test for emergencies... "
    jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency detected in ordinary run" || echo PASS
    echo -n "Test for emergencies by count... "
    jq -e .emergencies_by_count[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency by count detected in ordinary run" || echo PASS

    echo -n "Test for wire inconsistencies... "
    jq -e .wire_out_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire out inconsistency detected in ordinary run"
    jq -e .reserve_in_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected reserve in inconsistency detected in ordinary run"
    jq -e .misattribution_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected misattribution inconsistency detected in ordinary run"
    jq -e .row_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected row inconsistency detected in ordinary run"
    jq -e .row_minor_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected minor row inconsistency detected in ordinary run"
    jq -e .wire_format_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire format inconsistencies detected in ordinary run"

    # TODO: check operation balances are correct (once we have all transaction types and wallet is deterministic)
    # TODO: check revenue summaries are correct (once we have all transaction types and wallet is deterministic)

    echo PASS

    echo -n "Check for lag detection... "

    # Check wire transfer lag reported (no aggregator!)
    # NOTE: This test is EXPECTED to fail for ~1h after
    # re-generating the test database as we do not
    # report lag of less than 1h (see GRACE_PERIOD in
    # taler-helper-auditor-wire.c)
    jq -e .lag_details[0] < test-audit-wire.json > /dev/null || exit_fail "Lag not detected in run without aggregator"

    LAG=`jq -r .total_amount_lag < test-audit-wire.json`
    if test $LAG = "TESTKUDOS:0"
    then
        exit_fail "Expected total lag to be non-zero"
    fi
    echo "PASS"


    echo -n "Test for wire amounts... "
    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_misattribution_in < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total misattribution in wrong, got $WIRED"
    fi
    # Database was unmodified, no need to undo
    echo "OK"
}


# Change amount of wire transfer reported by exchange
function test_2() {

    echo "===========2: reserves_in inconsistency ==========="
    echo "UPDATE exchange.reserves_in SET credit_val=5 WHERE reserve_in_serial_id=1" | psql -At $DB

    run_audit

    echo -n "Testing inconsistency detection... "
    ROW=`jq .reserve_in_amount_inconsistencies[0].row < test-audit-wire.json`
    if test $ROW != 1
    then
        exit_fail "Row $ROW is wrong"
    fi
    WIRED=`jq -r .reserve_in_amount_inconsistencies[0].amount_wired < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:10"
    then
        exit_fail "Amount wrong"
    fi
    EXPECTED=`jq -r .reserve_in_amount_inconsistencies[0].amount_exchange_expected < test-audit-wire.json`
    if test $EXPECTED != "TESTKUDOS:5"
    then
        exit_fail "Expected amount wrong"
    fi

    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Wrong total wire_in_delta_minus, got $WIRED"
    fi
    DELTA=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
    if test $DELTA != "TESTKUDOS:5"
    then
        exit_fail "Expected total wire delta plus wrong, got $DELTA"
    fi
    echo PASS

    # Undo database modification
    echo "UPDATE exchange.reserves_in SET credit_val=10 WHERE reserve_in_serial_id=1" | psql -Aqt $DB

}


# Check for incoming wire transfer amount given being
# lower than what exchange claims to have received.
function test_3() {

    echo "===========3: reserves_in inconsistency==========="
    echo "UPDATE exchange.reserves_in SET credit_val=15 WHERE reserve_in_serial_id=1" | psql -Aqt $DB

    run_audit

    EXPECTED=`jq -r .reserve_balance_summary_wrong_inconsistencies[0].auditor < test-audit-reserves.json`
    if test $EXPECTED != "TESTKUDOS:5.01"
    then
        exit_fail "Expected reserve balance summary amount wrong, got $EXPECTED (auditor)"
    fi

    EXPECTED=`jq -r .reserve_balance_summary_wrong_inconsistencies[0].exchange < test-audit-reserves.json`
    if test $EXPECTED != "TESTKUDOS:0.01"
    then
        exit_fail "Expected reserve balance summary amount wrong, got $EXPECTED (exchange)"
    fi

    WIRED=`jq -r .total_loss_balance_insufficient < test-audit-reserves.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Wrong total loss from insufficient balance, got $WIRED"
    fi

    ROW=`jq -e .reserve_in_amount_inconsistencies[0].row < test-audit-wire.json`
    if test $ROW != 1
    then
        exit_fail "Row wrong, got $ROW"
    fi

    WIRED=`jq -r .reserve_in_amount_inconsistencies[0].amount_exchange_expected < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:15"
    then
        exit_fail "Wrong amount_exchange_expected, got $WIRED"
    fi

    WIRED=`jq -r .reserve_in_amount_inconsistencies[0].amount_wired < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:10"
    then
        exit_fail "Wrong amount_wired, got $WIRED"
    fi

    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:5"
    then
        exit_fail "Wrong total wire_in_delta_minus, got $WIRED"
    fi

    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Wrong total wire_in_delta_plus, got $WIRED"
    fi

    # Undo database modification
    echo "UPDATE exchange.reserves_in SET credit_val=10 WHERE reserve_in_serial_id=1" | psql -Aqt $DB

}


# Check for incoming wire transfer amount given being
# lower than what exchange claims to have received.
function test_4() {

    echo "===========4: deposit wire target wrong================="
    # Original target bank account was 43, changing to 44
    SERIAL=`echo "SELECT deposit_serial_id FROM exchange.deposits WHERE amount_with_fee_val=3 AND amount_with_fee_frac=0 ORDER BY deposit_serial_id LIMIT 1" | psql $DB -Aqt`
    OLD_WIRE_ID=`echo "SELECT wire_target_h_payto FROM exchange.deposits WHERE deposit_serial_id=${SERIAL};"  | psql $DB -Aqt`
    NEW_WIRE_ID=`echo "INSERT INTO exchange.wire_targets (payto_uri, wire_target_h_payto) VALUES ('payto://x-taler-bank/localhost/testuser-xxlargtp', '\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b');"  | psql $DB -Aqt`
    echo "UPDATE exchange.deposits SET wire_target_h_payto='\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b' WHERE deposit_serial_id=${SERIAL}" | psql -Aqt $DB

    run_audit

    echo -n "Testing inconsistency detection... "

    jq -e .bad_sig_losses[0] < test-audit-coins.json > /dev/null || exit_fail "Bad signature not detected"

    ROW=`jq -e .bad_sig_losses[0].row < test-audit-coins.json`
    if test $ROW != ${SERIAL}
    then
        exit_fail "Row wrong, got $ROW"
    fi

    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:3"
    then
        exit_fail "Wrong deposit bad signature loss, got $LOSS"
    fi

    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
    if test $OP != "deposit"
    then
        exit_fail "Wrong operation, got $OP"
    fi

    LOSS=`jq -r .total_bad_sig_loss < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:3"
    then
        exit_fail "Wrong total bad sig loss, got $LOSS"
    fi

    echo PASS
    # Undo:
    echo "UPDATE exchange.deposits SET wire_target_h_payto='$OLD_WIRE_ID' WHERE deposit_serial_id=${SERIAL}" | psql -Aqt $DB

}



# Test where h_contract_terms in the deposit table is wrong
# (=> bad signature)
function test_5() {
    echo "===========5: deposit contract hash wrong================="
    # Modify h_wire hash, so it is inconsistent with 'wire'
    SERIAL=`echo "SELECT deposit_serial_id FROM exchange.deposits WHERE amount_with_fee_val=3 AND amount_with_fee_frac=0 ORDER BY deposit_serial_id LIMIT 1" | psql $DB -Aqt`
    OLD_H=`echo "SELECT h_contract_terms FROM exchange.deposits WHERE deposit_serial_id=$SERIAL;" | psql $DB -Aqt`
    echo "UPDATE exchange.deposits SET h_contract_terms='\x12bb676444955c98789f219148aa31899d8c354a63330624d3d143222cf3bb8b8e16f69accd5a8773127059b804c1955696bf551dd7be62719870613332aa8d5' WHERE deposit_serial_id=$SERIAL" | psql -Aqt $DB

    run_audit

    echo -n "Checking bad signature detection... "
    ROW=`jq -e .bad_sig_losses[0].row < test-audit-coins.json`
    if test $ROW != $SERIAL
    then
        exit_fail "Row wrong, got $ROW"
    fi

    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:3"
    then
        exit_fail "Wrong deposit bad signature loss, got $LOSS"
    fi

    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
    if test $OP != "deposit"
    then
        exit_fail "Wrong operation, got $OP"
    fi

    LOSS=`jq -r .total_bad_sig_loss < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:3"
    then
        exit_fail "Wrong total bad sig loss, got $LOSS"
    fi
    echo PASS

    # Undo:
    echo "UPDATE exchange.deposits SET h_contract_terms='${OLD_H}' WHERE deposit_serial_id=$SERIAL" | psql -Aqt $DB

}


# Test where denom_sig in known_coins table is wrong
# (=> bad signature)
function test_6() {
    echo "===========6: known_coins signature wrong================="
    # Modify denom_sig, so it is wrong
    OLD_SIG=`echo 'SELECT denom_sig FROM exchange.known_coins LIMIT 1;' | psql $DB -Aqt`
    COIN_PUB=`echo "SELECT coin_pub FROM exchange.known_coins WHERE denom_sig='$OLD_SIG';"  | psql $DB -Aqt`
    echo "UPDATE exchange.known_coins SET denom_sig='\x0000000100000000287369672d76616c200a2028727361200a2020287320233542383731423743393036444643303442424430453039353246413642464132463537303139374131313437353746324632323332394644443146324643333445393939413336363430334233413133324444464239413833353833464536354442374335434445304441453035374438363336434541423834463843323843344446304144363030343430413038353435363039373833434431333239393736423642433437313041324632414132414435413833303432434346314139464635394244434346374436323238344143354544364131373739463430353032323241373838423837363535453434423145443831364244353638303232413123290a2020290a20290b' WHERE coin_pub='$COIN_PUB'" | psql -Aqt $DB

    run_audit

    ROW=`jq -e .bad_sig_losses[0].row < test-audit-coins.json`
    if test $ROW != "1"
    then
        exit_fail "Row wrong, got $ROW"
    fi

    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
    if test $LOSS == "TESTKUDOS:0"
    then
        exit_fail "Wrong deposit bad signature loss, got $LOSS"
    fi

    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
    if test $OP != "melt"
    then
        exit_fail "Wrong operation, got $OP"
    fi

    LOSS=`jq -r .total_bad_sig_loss < test-audit-coins.json`
    if test $LOSS == "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss, got $LOSS"
    fi

    # Undo
    echo "UPDATE exchange.known_coins SET denom_sig='$OLD_SIG' WHERE coin_pub='$COIN_PUB'" | psql -Aqt $DB

}



# Test where h_wire in the deposit table is wrong
function test_7() {
    echo "===========7: reserves_out signature wrong================="
    # Modify reserve_sig, so it is bogus
    HBE=`echo 'SELECT h_blind_ev FROM exchange.reserves_out LIMIT 1;' | psql $DB -Aqt`
    OLD_SIG=`echo "SELECT reserve_sig FROM exchange.reserves_out WHERE h_blind_ev='$HBE';" | psql $DB -Aqt`
    A_VAL=`echo "SELECT amount_with_fee_val FROM exchange.reserves_out WHERE h_blind_ev='$HBE';" | psql $DB -Aqt`
    A_FRAC=`echo "SELECT amount_with_fee_frac FROM exchange.reserves_out WHERE h_blind_ev='$HBE';" | psql $DB -Aqt`
    # Normalize, we only deal with cents in this test-case
    A_FRAC=`expr $A_FRAC / 1000000 || true`
    echo "UPDATE exchange.reserves_out SET reserve_sig='\x9ef381a84aff252646a157d88eded50f708b2c52b7120d5a232a5b628f9ced6d497e6652d986b581188fb014ca857fd5e765a8ccc4eb7e2ce9edcde39accaa4b' WHERE h_blind_ev='$HBE'" | psql -Aqt $DB

    run_audit

    OP=`jq -r .bad_sig_losses[0].operation < test-audit-reserves.json`
    if test $OP != "withdraw"
    then
        exit_fail "Wrong operation, got $OP"
    fi

    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-reserves.json`
    LOSS_TOTAL=`jq -r .total_bad_sig_loss < test-audit-reserves.json`
    if test $LOSS != $LOSS_TOTAL
    then
        exit_fail "Expected loss $LOSS and total loss $LOSS_TOTAL do not match"
    fi
    if test $A_FRAC != 0
    then
        if [ $A_FRAC -lt 10 ]
        then
            A_PREV="0"
        else
            A_PREV=""
        fi
        if test $LOSS != "TESTKUDOS:$A_VAL.$A_PREV$A_FRAC"
        then
            exit_fail "Expected loss TESTKUDOS:$A_VAL.$A_PREV$A_FRAC but got $LOSS"
        fi
    else
        if test $LOSS != "TESTKUDOS:$A_VAL"
        then
            exit_fail "Expected loss TESTKUDOS:$A_VAL but got $LOSS"
        fi
    fi

    # Undo:
    echo "UPDATE exchange.reserves_out SET reserve_sig='$OLD_SIG' WHERE h_blind_ev='$HBE'" | psql -Aqt $DB

}


# Test wire transfer subject disagreement!
function test_8() {

    echo "===========8: wire-transfer-subject disagreement==========="
    OLD_ID=`echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND currency='TESTKUDOS' ORDER BY id LIMIT 1;" | sqlite3 ${DB}-nexus.sqlite3`
    OLD_WTID=`echo "SELECT reservePublicKey FROM TalerIncomingPayments WHERE payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3`
    NEW_WTID="CK9QBFY972KR32FVA1MW958JWACEB6XCMHHKVFMCH1A780Q12SVG"
    echo "UPDATE TalerIncomingPayments SET reservePublicKey='$NEW_WTID' WHERE payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3

    run_audit

    echo -n "Testing inconsistency detection... "
    DIAG=`jq -r .reserve_in_amount_inconsistencies[0].diagnostic < test-audit-wire.json`
    if test "x$DIAG" != "xwire subject does not match"
    then
        exit_fail "Diagnostic wrong: $DIAG (0)"
    fi
    WTID=`jq -r .reserve_in_amount_inconsistencies[0].reserve_pub < test-audit-wire.json`
    if test x$WTID != x"$OLD_WTID" -a x$WTID != x"$NEW_WTID"
    then
        exit_fail "WTID reported wrong: $WTID"
    fi
    EX_A=`jq -r .reserve_in_amount_inconsistencies[0].amount_exchange_expected < test-audit-wire.json`
    if test x$WTID = x$OLD_WTID -a x$EX_A != x"TESTKUDOS:10"
    then
        exit_fail "Amount reported wrong: $EX_A"
    fi
    if test x$WTID = x$NEW_WTID -a x$EX_A != x"TESTKUDOS:0"
    then
        exit_fail "Amount reported wrong: $EX_A"
    fi
    DIAG=`jq -r .reserve_in_amount_inconsistencies[1].diagnostic < test-audit-wire.json`
    if test "x$DIAG" != "xwire subject does not match"
    then
        exit_fail "Diagnostic wrong: $DIAG (1)"
    fi
    WTID=`jq -r .reserve_in_amount_inconsistencies[1].reserve_pub < test-audit-wire.json`
    if test $WTID != "$OLD_WTID" -a $WTID != "$NEW_WTID"
    then
        exit_fail "WTID reported wrong: $WTID (wanted: $NEW_WTID or $OLD_WTID)"
    fi
    EX_A=`jq -r .reserve_in_amount_inconsistencies[1].amount_exchange_expected < test-audit-wire.json`
    if test $WTID = "$OLD_WTID" -a $EX_A != "TESTKUDOS:10"
    then
        exit_fail "Amount reported wrong: $EX_A"
    fi
    if test $WTID = "$NEW_WTID" -a $EX_A != "TESTKUDOS:0"
    then
        exit_fail "Amount reported wrong: $EX_A"
    fi

    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:10"
    then
        exit_fail "Wrong total wire_in_delta_minus, got $WIRED"
    fi
    DELTA=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
    if test $DELTA != "TESTKUDOS:10"
    then
        exit_fail "Expected total wire delta plus wrong, got $DELTA"
    fi
    echo PASS

    # Undo database modification
    echo "UPDATE TalerIncomingPayments SET reservePublicKey='$OLD_WTID' WHERE payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3

}


# Test wire origin disagreement!
function test_9() {

    echo "===========9: wire-origin disagreement==========="
    OLD_ID=`echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND currency='TESTKUDOS' ORDER BY id LIMIT 1;" | sqlite3 ${DB}-nexus.sqlite3`
    OLD_ACC=`echo "SELECT incomingPaytoUri FROM TalerIncomingPayments WHERE payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3`
    echo "UPDATE TalerIncomingPayments SET incomingPaytoUri='payto://iban/SANDBOXX/DE144373?receiver-name=New+Exchange+Company' WHERE payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3

    run_audit

    echo -n "Testing inconsistency detection... "
    AMOUNT=`jq -r .misattribution_in_inconsistencies[0].amount < test-audit-wire.json`
    if test "x$AMOUNT" != "xTESTKUDOS:10"
    then
        exit_fail "Reported amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .total_misattribution_in < test-audit-wire.json`
    if test "x$AMOUNT" != "xTESTKUDOS:10"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi
    echo PASS

    # Undo database modification
    echo "UPDATE TalerIncomingPayments SET incomingPaytoUri='$OLD_ACC' WHERE payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3

}


# Test wire_in timestamp disagreement!
function test_10() {
    NOW_MS=`date +%s`000
    echo "===========10: wire-timestamp disagreement==========="
    OLD_ID=`echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND currency='TESTKUDOS' ORDER BY id LIMIT 1;" | sqlite3 ${DB}-nexus.sqlite3`
    OLD_DATE=`echo "SELECT timestampMs FROM TalerIncomingPayments WHERE payment='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3`
    echo "UPDATE TalerIncomingPayments SET timestampMs=$NOW_MS WHERE payment=$OLD_ID;" | sqlite3 ${DB}-nexus.sqlite3

    run_audit

    echo -n "Testing inconsistency detection... "
    DIAG=`jq -r .row_minor_inconsistencies[0].diagnostic < test-audit-wire.json`
    if test "x$DIAG" != "xexecution date mismatch"
    then
        exit_fail "Reported diagnostic wrong: $DIAG"
    fi
    TABLE=`jq -r .row_minor_inconsistencies[0].table < test-audit-wire.json`
    if test "x$TABLE" != "xreserves_in"
    then
        exit_fail "Reported table wrong: $TABLE"
    fi
    echo PASS

    # Undo database modification
    echo "UPDATE TalerIncomingPayments SET timestampMs='$OLD_DATE' WHERE payment=$OLD_ID;" | sqlite3 ${DB}-nexus.sqlite3

}


# Test for extra outgoing wire transfer.
# In case of changing the subject in the Nexus
# ingested table: '.batches[0].batchTransactions[0].details.unstructuredRemittanceInformation'
function test_11() {
    echo "===========11: spurious outgoing transfer ==========="
    OLD_ID=`echo "SELECT id FROM NexusBankTransactions WHERE amount='10' AND currency='TESTKUDOS' ORDER BY id LIMIT 1;" | sqlite3 ${DB}-nexus.sqlite3`
    OLD_TX=`echo "SELECT transactionJson FROM NexusBankTransactions WHERE id='$OLD_ID';" | sqlite3 ${DB}-nexus.sqlite3`
    # Change wire transfer to be FROM the exchange (#2) to elsewhere!
    # (Note: this change also causes a missing incoming wire transfer, but
    #  this test is only concerned about the outgoing wire transfer
    #  being detected as such, and we simply ignore the other
    #  errors being reported.)
    OTHER_IBAN=`echo -e "SELECT iban FROM BankAccounts WHERE label='fortytwo'" | sqlite3 ${DB}-nexus.sqlite3`
    NEW_TX=$(echo "$OLD_TX" | jq .batches[0].batchTransactions[0].details.creditDebitIndicator='"DBIT"' | jq 'del(.batches[0].batchTransactions[0].details.debtor)' | jq 'del(.batches[0].batchTransactions[0].details.debtorAccount)' | jq 'del(.batches[0].batchTransactions[0].details.debtorAgent)' | jq '.batches[0].batchTransactions[0].details.creditor'='{"name": "Forty Two"}' | jq .batches[0].batchTransactions[0].details.creditorAccount='{"iban": "'$OTHER_IBAN'"}' | jq .batches[0].batchTransactions[0].details.creditorAgent='{"bic": "SANDBOXX"}' | jq .batches[0].batchTransactions[0].details.unstructuredRemittanceInformation='"CK9QBFY972KR32FVA1MW958JWACEB6XCMHHKVFMCH1A780Q12SVG http://exchange.example.com/"')
    echo -e "UPDATE NexusBankTransactions SET transactionJson='"$NEW_TX"' WHERE id=$OLD_ID" | sqlite3 ${DB}-nexus.sqlite3
    # Now fake that the exchange prepared this payment (= it POSTed to /transfer)
    # This step is necessary, because the TWG table that accounts for outgoing
    # payments needs it.  Worth noting here is the column 'rawConfirmation' that
    # points to the transaction from the main Nexus ledger; without that column set,
    # a prepared payment won't appear as actually outgoing.
    echo -e "INSERT INTO PaymentInitiations (bankAccount,preparationDate,submissionDate,sum,currency,endToEndId,paymentInformationId,instructionId,subject,creditorIban,creditorBic,creditorName,submitted,messageId,rawConfirmation) VALUES (1,1,1,10,'TESTKUDOS','NOTGIVEN','unused','unused','CK9QBFY972KR32FVA1MW958JWACEB6XCMHHKVFMCH1A780Q12SVG http://exchange.example.com/','"$OTHER_IBAN"','SANDBOXX','Forty Two','unused',1,$OLD_ID)" | sqlite3 ${DB}-nexus.sqlite3
    # Now populate the TWG table that accounts for outgoing payments, in
    # order to let /history/outgoing return one result.
    echo -e "INSERT INTO TalerRequestedPayments (facade,payment,requestUid,amount,exchangeBaseUrl,wtid,creditAccount) VALUES (1,1,'unused','TESTKUDOS:10','http://exchange.example.com/','CK9QBFY972KR32FVA1MW958JWACEB6XCMHHKVFMCH1A780Q12SVG','payto://iban/SANDBOXX/"$OTHER_IBAN"?receiver-name=Forty+Two')" | sqlite3 ${DB}-nexus.sqlite3

    run_audit

    echo -n "Testing inconsistency detection... "
    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_wired < test-audit-wire.json`
    if test "x$AMOUNT" != "xTESTKUDOS:10"
    then
        exit_fail "Reported wired amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
    if test "x$AMOUNT" != "xTESTKUDOS:10"
    then
        exit_fail "Reported total plus amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
    if test "x$AMOUNT" != "xTESTKUDOS:0"
    then
        exit_fail "Reported total minus amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_justified < test-audit-wire.json`
    if test "x$AMOUNT" != "xTESTKUDOS:0"
    then
        exit_fail "Reported justified amount wrong: $AMOUNT"
    fi
    DIAG=`jq -r .wire_out_amount_inconsistencies[0].diagnostic < test-audit-wire.json`
    if test "x$DIAG" != "xjustification for wire transfer not found"
    then
        exit_fail "Reported diagnostic wrong: $DIAG"
    fi
    echo PASS

    # Undo database modification
    echo -e "UPDATE NexusBankTransactions SET transactionJson='"$OLD_TX"' WHERE id=$OLD_ID;" | sqlite3 ${DB}-nexus.sqlite3
    # No other prepared payment should exist at this point,
    # so OK to remove the number 1.
    echo -e "DELETE FROM PaymentInitiations WHERE id=1" | sqlite3 ${DB}-nexus.sqlite3
    echo -e "DELETE FROM TalerRequestedPayments WHERE id=1" | sqlite3 ${DB}-nexus.sqlite3
}

# Test for hanging/pending refresh.
function test_12() {

    echo "===========12: incomplete refresh ==========="
    OLD_ACC=`echo "DELETE FROM exchange.refresh_revealed_coins;" | psql $DB -Aqt`

    run_audit

    echo -n "Testing hung refresh detection... "

    HANG=`jq -er .refresh_hanging[0].amount < test-audit-coins.json`
    TOTAL_HANG=`jq -er .total_refresh_hanging < test-audit-coins.json`
    if test x$HANG = TESTKUDOS:0
    then
        exit_fail "Hanging amount zero"
    fi
    if test x$TOTAL_HANG = TESTKUDOS:0
    then
        exit_fail "Total hanging amount zero"
    fi

    echo PASS


    # cannot easily undo DELETE, hence full reload
    full_reload

}


# Test for wrong signature on refresh.
function test_13() {

    echo "===========13: wrong melt signature ==========="
    # Modify denom_sig, so it is wrong
    COIN_PUB=`echo "SELECT old_coin_pub FROM exchange.refresh_commitments LIMIT 1;"  | psql $DB -Aqt`
    OLD_SIG=`echo "SELECT old_coin_sig FROM exchange.refresh_commitments WHERE old_coin_pub='$COIN_PUB';" | psql $DB -Aqt`
    NEW_SIG="\xba588af7c13c477dca1ac458f65cc484db8fba53b969b873f4353ecbd815e6b4c03f42c0cb63a2b609c2d726e612fd8e0c084906a41f409b6a23a08a83c89a02"
    echo "UPDATE exchange.refresh_commitments SET old_coin_sig='$NEW_SIG' WHERE old_coin_pub='$COIN_PUB'" | psql -Aqt $DB

    run_audit

    echo -n "Testing inconsistency detection... "

    OP=`jq -er .bad_sig_losses[0].operation < test-audit-coins.json`
    if test x$OP != xmelt
    then
        exit_fail "Operation wrong, got $OP"
    fi

    LOSS=`jq -er .bad_sig_losses[0].loss < test-audit-coins.json`
    TOTAL_LOSS=`jq -er .total_bad_sig_loss < test-audit-coins.json`
    if test x$LOSS != x$TOTAL_LOSS
    then
        exit_fail "Loss inconsistent, got $LOSS and $TOTAL_LOSS"
    fi
    if test x$TOTAL_LOSS = TESTKUDOS:0
    then
        exit_fail "Loss zero"
    fi

    echo PASS

    # cannot easily undo DELETE, hence full reload
    full_reload
}


# Test for wire fee disagreement
function test_14() {

    echo "===========14: wire-fee disagreement==========="

    # Wire fees are only checked/generated once there are
    # actual outgoing wire transfers, so we need to run the
    # aggregator here.
    pre_audit aggregator
    echo "UPDATE exchange.wire_fee SET wire_fee_frac=100;" | psql -Aqt $DB
    audit_only
    post_audit

    echo -n "Testing inconsistency detection... "
    TABLE=`jq -r .row_inconsistencies[0].table < test-audit-aggregation.json`
    if test "x$TABLE" != "xwire-fee"
    then
        exit_fail "Reported table wrong: $TABLE"
    fi
    DIAG=`jq -r .row_inconsistencies[0].diagnostic < test-audit-aggregation.json`
    if test "x$DIAG" != "xwire fee signature invalid at given time"
    then
        exit_fail "Reported diagnostic wrong: $DIAG"
    fi
    echo PASS

    # cannot easily undo aggregator, hence full reload
    full_reload
}


# Test where salt in the deposit table is wrong
function test_15() {
    echo "===========15: deposit wire salt wrong================="

    # Modify wire_salt hash, so it is inconsistent
    SALT=`echo "SELECT wire_salt FROM exchange.deposits WHERE deposit_serial_id=1;" | psql -Aqt $DB`
    echo "UPDATE exchange.deposits SET wire_salt='\x1197cd7f7b0e13ab1905fedb36c536a2' WHERE deposit_serial_id=1;" | psql -Aqt $DB

    run_audit

    echo -n "Testing inconsistency detection... "
    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
    if test "x$OP" != "xdeposit"
    then
        exit_fail "Reported operation wrong: $OP"
    fi
    echo PASS

    # Restore DB
    echo "UPDATE exchange.deposits SET wire_salt='$SALT' WHERE deposit_serial_id=1;" | psql -Aqt $DB

}


# Test where wired amount (wire out) is wrong
function test_16() {
    echo "===========16: incorrect wire_out amount================="

    # Check wire transfer lag reported (no aggregator!)

    # First, we need to run the aggregator so we even
    # have a wire_out to modify.
    pre_audit aggregator

    # This function helps to retry when the database is locked by
    # libEufin.
    # Modify wire amount, such that it is inconsistent with 'aggregation'
    # (Only one payment out exist, so the logic below should select the outgoing
    # wire transfer):
    function test_16_db () {
        OLD_AMOUNT=`echo "SELECT amount FROM TalerRequestedPayments WHERE id='1';" | sqlite3 ${DB}-nexus.sqlite3`
        NEW_AMOUNT="TESTKUDOS:50"
        echo "UPDATE TalerRequestedPayments SET amount='${NEW_AMOUNT}' WHERE id='1';" | sqlite3 ${DB}-nexus.sqlite3
    }
    echo -n Trying to patch the SQLite database..
    for try in `seq 1 10`; do
        if test_16_db 2>&1 > /dev/null; then
            break
        fi
        echo -n .
        if test $try = 10; then
            exit_fail "Could not modify the SQLite database"
        fi
        sleep 0.3
    done
    echo DONE

    audit_only

    echo -n "Testing inconsistency detection... "

    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_justified < test-audit-wire.json`
    if test "x$AMOUNT" != "x$OLD_AMOUNT"
    then
        exit_fail "Reported justified amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_wired < test-audit-wire.json`
    if test "x$AMOUNT" != "x$NEW_AMOUNT"
    then
        exit_fail "Reported wired amount wrong: $AMOUNT"
    fi
    TOTAL_AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
    if test "x$TOTAL_AMOUNT" != "xTESTKUDOS:0"
    then
        exit_fail "Reported total wired amount minus wrong: $TOTAL_AMOUNT"
    fi
    TOTAL_AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
    if test "x$TOTAL_AMOUNT" = "xTESTKUDOS:0"
    then
        exit_fail "Reported total wired amount plus wrong: $TOTAL_AMOUNT"
    fi
    echo PASS

    echo "Second modification: wire nothing"
    NEW_AMOUNT="TESTKUDOS:0"
    echo "UPDATE TalerRequestedPayments SET amount='${NEW_AMOUNT}' WHERE id='1';" | sqlite3 ${DB}-nexus.sqlite3
    audit_only

    echo -n "Testing inconsistency detection... "

    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_justified < test-audit-wire.json`
    if test "x$AMOUNT" != "x$OLD_AMOUNT"
    then
        exit_fail "Reported justified amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .wire_out_amount_inconsistencies[0].amount_wired < test-audit-wire.json`
    if test "x$AMOUNT" != "x$NEW_AMOUNT"
    then
        exit_fail "Reported wired amount wrong: $AMOUNT"
    fi
    TOTAL_AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
    if test "x$TOTAL_AMOUNT" != "x$OLD_AMOUNT"
    then
        exit_fail "Reported total wired amount minus wrong: $TOTAL_AMOUNT (wanted $OLD_AMOUNT)"
    fi
    TOTAL_AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
    if test "x$TOTAL_AMOUNT" != "xTESTKUDOS:0"
    then
        exit_fail "Reported total wired amount plus wrong: $TOTAL_AMOUNT"
    fi
    echo PASS

    post_audit

    # cannot easily undo aggregator, hence full reload
    full_reload
}



# Test where wire-out timestamp is wrong
function test_17() {
    echo "===========17: incorrect wire_out timestamp================="

    # First, we need to run the aggregator so we even
    # have a wire_out to modify.
    pre_audit aggregator

    # This function helps to retry when the database is locked
    # already by libEufin.
    # Modify wire amount, such that it is inconsistent with 'aggregation'
    # (exchange paid only once, so the logic below should select the outgoing
    # wire transfer).
    function test_17_db () {
        OLD_ID=1
        OLD_PREP=`echo "SELECT payment FROM TalerRequestedPayments WHERE id='${OLD_ID}';" | sqlite3 ${DB}-nexus.sqlite3`
        OLD_DATE=`echo "SELECT preparationDate FROM PaymentInitiations WHERE id='${OLD_ID}';" | sqlite3 ${DB}-nexus.sqlite3`
        # Note: need - interval '1h' as "NOW()" may otherwise be exactly what is already in the DB
        # (due to rounding, if this machine is fast...)
        NOW_1HR=$(expr $(date +%s) - 3600)
        echo "UPDATE PaymentInitiations SET preparationDate='$NOW_1HR' WHERE id='${OLD_PREP}';" | sqlite3 ${DB}-nexus.sqlite3
    }
    echo -n Trying to patch the SQLite database..
    for try in `seq 1 10`; do
        if test_17_db 2>&1 > /dev/null; then
            break
        fi
        echo -n .
        if test $try = 10; then
            exit_fail "Could not modify the SQLite database"
        fi
        sleep 0.3
    done
    echo DONE
    audit_only
    post_audit

    echo -n "Testing inconsistency detection... "
    TABLE=`jq -r .row_minor_inconsistencies[0].table < test-audit-wire.json`
    if test "x$TABLE" != "xwire_out"
    then
        exit_fail "Reported table wrong: $TABLE"
    fi
    DIAG=`jq -r .row_minor_inconsistencies[0].diagnostic < test-audit-wire.json`
    DIAG=`echo "$DIAG" | awk '{print $1 " " $2 " " $3}'`
    if test "x$DIAG" != "xexecution date mismatch"
    then
        exit_fail "Reported diagnostic wrong: $DIAG"
    fi
    echo PASS

    # cannot easily undo aggregator, hence full reload
    full_reload
}




# Test where we trigger an emergency.
function test_18() {
    echo "===========18: emergency================="

    echo "DELETE FROM exchange.reserves_out;" | psql -Aqt $DB

    run_audit

    echo -n "Testing emergency detection... "

    jq -e .reserve_balance_summary_wrong_inconsistencies[0] < test-audit-reserves.json > /dev/null || exit_fail "Reserve balance inconsistency not detected"

    jq -e .emergencies[0] < test-audit-coins.json > /dev/null || exit_fail "Emergency not detected"
    jq -e .emergencies_by_count[0] < test-audit-coins.json > /dev/null || exit_fail "Emergency by count not detected"
    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-coins.json > /dev/null || exit_fail "Escrow balance calculation impossibility not detected"

    echo PASS

    echo -n "Testing loss calculation... "

    AMOUNT=`jq -r .emergencies_loss < test-audit-coins.json`
    if test "x$AMOUNT" == "xTESTKUDOS:0"
    then
        exit_fail "Reported amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .emergencies_loss_by_count < test-audit-coins.json`
    if test "x$AMOUNT" == "xTESTKUDOS:0"
    then
        exit_fail "Reported amount wrong: $AMOUNT"
    fi

    echo  PASS

    # cannot easily undo broad DELETE operation, hence full reload
    full_reload
}



# Test where reserve closure was done properly
function test_19() {
    echo "===========19: reserve closure done properly ================="

    OLD_TIME=`echo "SELECT execution_date FROM exchange.reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
    OLD_VAL=`echo "SELECT credit_val FROM exchange.reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
    RES_PUB=`echo "SELECT reserve_pub FROM exchange.reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
    OLD_EXP=`echo "SELECT expiration_date FROM exchange.reserves WHERE reserve_pub='${RES_PUB}';" | psql $DB -Aqt`
    VAL_DELTA=1
    NEW_TIME=`expr $OLD_TIME - 3024000000000 || true`  # 5 weeks
    NEW_EXP=`expr $OLD_EXP - 3024000000000 || true`  # 5 weeks
    NEW_CREDIT=`expr $OLD_VAL + $VAL_DELTA || true`
    echo "UPDATE exchange.reserves_in SET execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE reserve_in_serial_id=1;" | psql -Aqt $DB
    echo "UPDATE exchange.reserves SET current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}' WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB

    # Need to run with the aggregator so the reserve closure happens
    run_audit aggregator

    echo -n "Testing reserve closure was done correctly... "

    jq -e .reserve_not_closed_inconsistencies[0] < test-audit-reserves.json > /dev/null && exit_fail "Unexpected reserve not closed inconsistency detected"

    echo "PASS"

    echo -n "Testing no bogus transfers detected... "
    jq -e .wire_out_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire out inconsistency detected in run with reserve closure"

    echo "PASS"

    # cannot easily undo aggregator, hence full reload
    full_reload
}


# Test where reserve closure was not done properly
function test_20() {
    echo "===========20: reserve closure missing ================="

    OLD_TIME=`echo "SELECT execution_date FROM exchange.reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
    OLD_VAL=`echo "SELECT credit_val FROM exchange.reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
    RES_PUB=`echo "SELECT reserve_pub FROM exchange.reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
    NEW_TIME=`expr $OLD_TIME - 3024000000000 || true`  # 5 weeks
    NEW_CREDIT=`expr $OLD_VAL + 100 || true`
    echo "UPDATE exchange.reserves_in SET execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE reserve_in_serial_id=1;" | psql -Aqt $DB
    echo "UPDATE exchange.reserves SET current_balance_val=100+current_balance_val WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB

    # This time, run without the aggregator so the reserve closure is skipped!
    run_audit

    echo -n "Testing reserve closure missing detected... "
    jq -e .reserve_not_closed_inconsistencies[0] < test-audit-reserves.json > /dev/null || exit_fail "Reserve not closed inconsistency not detected"
    echo "PASS"

    AMOUNT=`jq -r .total_balance_reserve_not_closed < test-audit-reserves.json`
    if test "x$AMOUNT" == "xTESTKUDOS:0"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi

    # Undo
    echo "UPDATE exchange.reserves_in SET execution_date='${OLD_TIME}',credit_val=${OLD_VAL} WHERE reserve_in_serial_id=1;" | psql -Aqt $DB
    echo "UPDATE exchange.reserves SET current_balance_val=current_balance_val-100 WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB

}


# Test reserve closure reported but wire transfer missing detection
function test_21() {
    echo "===========21: reserve closure missreported ================="

    OLD_TIME=`echo "SELECT execution_date FROM exchange.reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
    OLD_VAL=`echo "SELECT credit_val FROM exchange.reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
    RES_PUB=`echo "SELECT reserve_pub FROM exchange.reserves_in WHERE reserve_in_serial_id=1;" | psql $DB -Aqt`
    OLD_EXP=`echo "SELECT expiration_date FROM exchange.reserves WHERE reserve_pub='${RES_PUB}';" | psql $DB -Aqt`
    VAL_DELTA=1
    NEW_TIME=`expr $OLD_TIME - 3024000000000 || true`  # 5 weeks
    NEW_EXP=`expr $OLD_EXP - 3024000000000 || true`  # 5 weeks
    NEW_CREDIT=`expr $OLD_VAL + $VAL_DELTA || true`
    echo "UPDATE exchange.reserves_in SET execution_date='${NEW_TIME}',credit_val=${NEW_CREDIT} WHERE reserve_in_serial_id=1;" | psql -Aqt $DB
    echo "UPDATE exchange.reserves SET current_balance_val=${VAL_DELTA}+current_balance_val,expiration_date='${NEW_EXP}' WHERE reserve_pub='${RES_PUB}';" | psql -Aqt $DB

    # Need to first run the aggregator so the transfer is marked as done exists
    pre_audit aggregator

    # remove transaction from bank DB
    # Currently emulating this (to be deleted):
    echo "DELETE FROM TalerRequestedPayments WHERE amount='TESTKUDOS:${VAL_DELTA}'" | sqlite3 ${DB}-nexus.sqlite3
    audit_only
    post_audit

    echo -n "Testing lack of reserve closure transaction detected... "

    jq -e .reserve_lag_details[0] < test-audit-wire.json > /dev/null || exit_fail "Reserve closure lag not detected"

    AMOUNT=`jq -r .reserve_lag_details[0].amount < test-audit-wire.json`
    if test "x$AMOUNT" != "xTESTKUDOS:${VAL_DELTA}"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .total_closure_amount_lag < test-audit-wire.json`
    if test "x$AMOUNT" != "xTESTKUDOS:${VAL_DELTA}"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi

    echo "PASS"

    # cannot easily undo aggregator, hence full reload
    full_reload
}


# Test use of withdraw-expired denomination key
function test_22() {
    echo "===========22: denomination key expired ================="

    S_DENOM=`echo 'SELECT denominations_serial FROM exchange.reserves_out LIMIT 1;' | psql $DB -Aqt`

    OLD_START=`echo "SELECT valid_from FROM exchange.denominations WHERE denominations_serial='${S_DENOM}';" | psql $DB -Aqt`
    OLD_WEXP=`echo "SELECT expire_withdraw FROM exchange.denominations WHERE denominations_serial='${S_DENOM}';" | psql $DB -Aqt`
    # Basically expires 'immediately', so that the withdraw must have been 'invalid'
    NEW_WEXP=$OLD_START

    echo "UPDATE exchange.denominations SET expire_withdraw=${NEW_WEXP} WHERE denominations_serial='${S_DENOM}';" | psql -Aqt $DB


    run_audit

    echo -n "Testing inconsistency detection... "
    jq -e .denomination_key_validity_withdraw_inconsistencies[0] < test-audit-reserves.json > /dev/null || exit_fail "Denomination key withdraw inconsistency for $S_DENOM not detected"

    echo PASS

    # Undo modification
    echo "UPDATE exchange.denominations SET expire_withdraw=${OLD_WEXP} WHERE denominations_serial='${S_DENOM}';" | psql -Aqt $DB

}



# Test calculation of wire-out amounts
function test_23() {
    echo "===========23: wire out calculations ================="

    # Need to first run the aggregator so the transfer is marked as done exists
    pre_audit aggregator

    OLD_AMOUNT=`echo "SELECT amount_frac FROM exchange.wire_out WHERE wireout_uuid=1;" | psql $DB -Aqt`
    NEW_AMOUNT=`expr $OLD_AMOUNT - 1000000 || true`
    echo "UPDATE exchange.wire_out SET amount_frac=${NEW_AMOUNT} WHERE wireout_uuid=1;" | psql -Aqt $DB

    audit_only
    post_audit

    echo -n "Testing inconsistency detection... "

    jq -e .wire_out_inconsistencies[0] < test-audit-aggregation.json > /dev/null || exit_fail "Wire out inconsistency not detected"

    ROW=`jq .wire_out_inconsistencies[0].rowid < test-audit-aggregation.json`
    if test $ROW != 1
    then
        exit_fail "Row wrong"
    fi
    AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-aggregation.json`
    if test "x$AMOUNT" != "xTESTKUDOS:0"
    then
        exit_fail "Reported amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-aggregation.json`
    if test "x$AMOUNT" != "xTESTKUDOS:0.01"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi
    echo PASS

    echo "Second pass: changing how amount is wrong to other direction"
    NEW_AMOUNT=`expr $OLD_AMOUNT + 1000000 || true`
    echo "UPDATE exchange.wire_out SET amount_frac=${NEW_AMOUNT} WHERE wireout_uuid=1;" | psql -Aqt $DB

    pre_audit
    audit_only
    post_audit

    echo -n "Testing inconsistency detection... "

    jq -e .wire_out_inconsistencies[0] < test-audit-aggregation.json > /dev/null || exit_fail "Wire out inconsistency not detected"

    ROW=`jq .wire_out_inconsistencies[0].rowid < test-audit-aggregation.json`
    if test $ROW != 1
    then
        exit_fail "Row wrong"
    fi
    AMOUNT=`jq -r .total_wire_out_delta_minus < test-audit-aggregation.json`
    if test "x$AMOUNT" != "xTESTKUDOS:0"
    then
        exit_fail "Reported amount wrong: $AMOUNT"
    fi
    AMOUNT=`jq -r .total_wire_out_delta_plus < test-audit-aggregation.json`
    if test "x$AMOUNT" != "xTESTKUDOS:0.01"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi
    echo PASS

    # cannot easily undo aggregator, hence full reload
    full_reload
}



# Test for missing deposits in exchange database.
function test_24() {

    echo "===========24: deposits missing ==========="
    # Modify denom_sig, so it is wrong
    CNT=`echo "SELECT COUNT(*) FROM auditor.deposit_confirmations;" | psql -Aqt $DB`
    if test x$CNT = x0
    then
        echo "Skipping deposits missing test: no deposit confirmations in database!"
    else
        echo "DELETE FROM exchange.deposits;" | psql -Aqt $DB
        echo "DELETE FROM exchange.deposits WHERE deposit_serial_id=1;" | psql -Aqt $DB

        run_audit

        echo -n "Testing inconsistency detection... "

        jq -e .deposit_confirmation_inconsistencies[0] < test-audit-deposits.json > /dev/null || exit_fail "Deposit confirmation inconsistency NOT detected"

        AMOUNT=`jq -er .missing_deposit_confirmation_total < test-audit-deposits.json`
        if test x$AMOUNT = xTESTKUDOS:0
        then
            exit_fail "Expected non-zero total missing deposit confirmation amount"
        fi
        COUNT=`jq -er .missing_deposit_confirmation_count < test-audit-deposits.json`
        if test x$AMOUNT = x0
        then
            exit_fail "Expected non-zero total missing deposit confirmation count"
        fi

        echo PASS

        # cannot easily undo DELETE, hence full reload
        full_reload
    fi
}


# Test for inconsistent coin history.
function test_25() {

    echo "=========25: inconsistent coin history========="

    # Drop refund, so coin history is bogus.
    echo "DELETE FROM exchange.refunds WHERE refund_serial_id=1;" | psql -Aqt $DB

    run_audit aggregator

    echo -n "Testing inconsistency detection... "

    jq -e .coin_inconsistencies[0] < test-audit-aggregation.json > /dev/null || exit_fail "Coin inconsistency NOT detected"

    # Note: if the wallet withdrew much more than it spent, this might indeed
    # go legitimately unnoticed.
    jq -e .emergencies[0] < test-audit-coins.json > /dev/null || exit_fail "Denomination value emergency NOT reported"

    AMOUNT=`jq -er .total_coin_delta_minus < test-audit-aggregation.json`
    if test x$AMOUNT = xTESTKUDOS:0
    then
        exit_fail "Expected non-zero total inconsistency amount from coins"
    fi
    # Note: if the wallet withdrew much more than it spent, this might indeed
    # go legitimately unnoticed.
    COUNT=`jq -er .emergencies_risk_by_amount < test-audit-coins.json`
    if test x$AMOUNT = xTESTKUDOS:0
    then
        exit_fail "Expected non-zero emergency-by-amount"
    fi
    echo PASS

    # cannot easily undo DELETE, hence full reload
    full_reload
}


# Test for deposit wire target malformed
function test_26() {
    echo "===========26: deposit wire target malformed ================="
    # Expects 'payto_uri', not 'url' (also breaks signature, but we cannot even check that).
    SERIAL=`echo "SELECT deposit_serial_id FROM exchange.deposits WHERE amount_with_fee_val=3 AND amount_with_fee_frac=0 ORDER BY deposit_serial_id LIMIT 1" | psql $DB -Aqt`
    OLD_WIRE_ID=`echo "SELECT wire_target_h_payto FROM exchange.deposits WHERE deposit_serial_id=${SERIAL};"  | psql $DB -Aqt`
    echo "INSERT INTO exchange.wire_targets (payto_uri, wire_target_h_payto) VALUES ('payto://x-taler-bank/localhost/testuser-xxlargtp', '\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b');"  | psql $DB -Aqt
    echo "UPDATE exchange.deposits SET wire_target_h_payto='\x1e8f31936b3cee8f8afd3aac9e38b5db42d45b721ffc4eb1e5b9ddaf1565660b' WHERE deposit_serial_id=${SERIAL}" | psql -Aqt $DB

    run_audit

    echo -n "Testing inconsistency detection... "

    jq -e .bad_sig_losses[0] < test-audit-coins.json > /dev/null || exit_fail "Bad signature not detected"

    ROW=`jq -e .bad_sig_losses[0].row < test-audit-coins.json`
    if test $ROW != ${SERIAL}
    then
        exit_fail "Row wrong, got $ROW"
    fi

    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:3"
    then
        exit_fail "Wrong deposit bad signature loss, got $LOSS"
    fi

    OP=`jq -r .bad_sig_losses[0].operation < test-audit-coins.json`
    if test $OP != "deposit"
    then
        exit_fail "Wrong operation, got $OP"
    fi

    LOSS=`jq -r .total_bad_sig_loss < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:3"
    then
        exit_fail "Wrong total bad sig loss, got $LOSS"
    fi

    echo PASS
    # Undo:
    echo "UPDATE exchange.deposits SET wire_target_h_payto='$OLD_WIRE_ID' WHERE deposit_serial_id=${SERIAL}" | psql -Aqt $DB

}

# Test for duplicate wire transfer subject
function test_27() {
    echo "===========27: duplicate WTID detection ================="

    pre_audit aggregator

    # Obtain data to duplicate.
    WTID=`echo SELECT wtid FROM TalerRequestedPayments WHERE id=1 | sqlite3 ${DB}-nexus.sqlite3`
    echo WTID=$WTID
    OTHER_IBAN=`echo -e "SELECT iban FROM BankAccounts WHERE label='fortytwo'" | sqlite3 ${DB}-nexus.sqlite3`
    stop_libeufin
    # 'rawConfirmation' is set to 2 here, that doesn't
    # point to any record.  That's only needed to set a non null value.
    echo -e "INSERT INTO PaymentInitiations (bankAccount,preparationDate,submissionDate,sum,currency,endToEndId,paymentInformationId,instructionId,subject,creditorIban,creditorBic,creditorName,submitted,messageId,rawConfirmation) VALUES (1,$(date +%s),$(expr $(date +%s) + 2),10,'TESTKUDOS','NOTGIVEN','unused','unused','$WTID http://exchange.example.com/','$OTHER_IBAN','SANDBOXX','Forty Two','unused',1,2)" | sqlite3 ${DB}-nexus.sqlite3
    echo -e "INSERT INTO TalerRequestedPayments (facade,payment,requestUid,amount,exchangeBaseUrl,wtid,creditAccount) VALUES (1,2,'unused','TESTKUDOS:1','http://exchange.example.com/','$WTID','payto://iban/SANDBOXX/$OTHER_IBAN?receiver-name=Forty+Two')" | sqlite3 ${DB}-nexus.sqlite3
    launch_libeufin
    audit_only
    post_audit

    echo -n "Testing inconsistency detection... "

    AMOUNT=`jq -r .wire_format_inconsistencies[0].amount < test-audit-wire.json`
    if test "${AMOUNT}" != "TESTKUDOS:1"
    then
        exit_fail "Amount wrong, got ${AMOUNT}"
    fi

    AMOUNT=`jq -r .total_wire_format_amount < test-audit-wire.json`
    if test "${AMOUNT}" != "TESTKUDOS:1"
    then
        exit_fail "Wrong total wire format amount, got $AMOUNT"
    fi

    # cannot easily undo aggregator, hence full reload
    full_reload
}




# Test where denom_sig in known_coins table is wrong
# (=> bad signature) AND the coin is used in aggregation
function test_28() {

    echo "===========28: known_coins signature wrong================="
    # Modify denom_sig, so it is wrong
    OLD_SIG=`echo 'SELECT denom_sig FROM exchange.known_coins LIMIT 1;' | psql $DB -Aqt`
    COIN_PUB=`echo "SELECT coin_pub FROM exchange.known_coins WHERE denom_sig='$OLD_SIG';"  | psql $DB -Aqt`
    echo "UPDATE exchange.known_coins SET denom_sig='\x0000000100000000287369672d76616c200a2028727361200a2020287320233542383731423743393036444643303442424430453039353246413642464132463537303139374131313437353746324632323332394644443146324643333445393939413336363430334233413133324444464239413833353833464536354442374335434445304441453035374438363336434541423834463843323843344446304144363030343430413038353435363039373833434431333239393736423642433437313041324632414132414435413833303432434346314139464635394244434346374436323238344143354544364131373739463430353032323241373838423837363535453434423145443831364244353638303232413123290a2020290a20290b' WHERE coin_pub='$COIN_PUB'" | psql -Aqt $DB

    run_audit aggregator

    echo -n "Testing inconsistency detection... "
    LOSS=`jq -r .bad_sig_losses[0].loss < test-audit-aggregation.json`
    if test $LOSS == "TESTKUDOS:0"
    then
        exit_fail "Wrong deposit bad signature loss, got $LOSS"
    fi

    OP=`jq -r .bad_sig_losses[0].operation < test-audit-aggregation.json`
    if test $OP != "wire"
    then
        exit_fail "Wrong operation, got $OP"
    fi
    TAB=`jq -r .row_inconsistencies[0].table < test-audit-aggregation.json`
    if test $TAB != "deposit"
    then
        exit_fail "Wrong table for row inconsistency, got $TAB"
    fi

    LOSS=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
    if test $LOSS == "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss, got $LOSS"
    fi

    echo "OK"
    # cannot easily undo aggregator, hence full reload
    full_reload
}



# Test where fees known to the auditor differ from those
# accounted for by the exchange
function test_29() {
    echo "===========29: withdraw fee inconsistency ================="

    echo "UPDATE exchange.denominations SET fee_withdraw_frac=5000000 WHERE coin_val=1;" | psql -Aqt $DB

    run_audit

    echo -n "Testing inconsistency detection... "
    AMOUNT=`jq -r .total_balance_summary_delta_minus < test-audit-reserves.json`
    if test "x$AMOUNT" == "xTESTKUDOS:0"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi

    PROFIT=`jq -r .amount_arithmetic_inconsistencies[0].profitable < test-audit-coins.json`
    if test "x$PROFIT" != "x-1"
    then
        exit_fail "Reported wrong profitability: $PROFIT"
    fi
    echo "OK"
    # Undo
    echo "UPDATE exchange.denominations SET fee_withdraw_frac=2000000 WHERE coin_val=1;" | psql -Aqt $DB

}


# Test where fees known to the auditor differ from those
# accounted for by the exchange
function test_30() {
    echo "===========30: melt fee inconsistency ================="

    echo "UPDATE exchange.denominations SET fee_refresh_frac=5000000 WHERE coin_val=10;" | psql -Aqt $DB

    run_audit
    echo -n "Testing inconsistency detection... "
    AMOUNT=`jq -r .bad_sig_losses[0].loss < test-audit-coins.json`
    if test "x$AMOUNT" == "xTESTKUDOS:0"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi

    PROFIT=`jq -r .amount_arithmetic_inconsistencies[0].profitable < test-audit-coins.json`
    if test "x$PROFIT" != "x-1"
    then
        exit_fail "Reported profitability wrong: $PROFIT"
    fi

    jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency detected in ordinary run"
    echo "OK"
    # Undo
    echo "UPDATE exchange.denominations SET fee_refresh_frac=3000000 WHERE coin_val=10;" | psql -Aqt $DB

}


# Test where fees known to the auditor differ from those
# accounted for by the exchange
function test_31() {

    echo "===========31: deposit fee inconsistency ================="

    echo "UPDATE exchange.denominations SET fee_deposit_frac=5000000 WHERE coin_val=8;" | psql -Aqt $DB

    run_audit aggregator
    echo -n "Testing inconsistency detection... "
    AMOUNT=`jq -r .total_bad_sig_loss < test-audit-coins.json`
    if test "x$AMOUNT" == "xTESTKUDOS:0"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi

    OP=`jq -r --arg dep "deposit" '.bad_sig_losses[] | select(.operation == $dep) | .operation'< test-audit-coins.json | head -n1`
    if test "x$OP" != "xdeposit"
    then
        exit_fail "Reported wrong operation: $OP"
    fi

    echo "OK"
    # Undo
    echo "UPDATE exchange.denominations SET fee_deposit_frac=2000000 WHERE coin_val=8;" | psql -Aqt $DB
}




# Test where denom_sig in known_coins table is wrong
# (=> bad signature)
function test_32() {

    echo "===========32: known_coins signature wrong w. aggregation================="
    # Modify denom_sig, so it is wrong
    OLD_SIG=`echo 'SELECT denom_sig FROM exchange.known_coins LIMIT 1;' | psql $DB -At`
    COIN_PUB=`echo "SELECT coin_pub FROM exchange.known_coins WHERE denom_sig='$OLD_SIG';"  | psql $DB -At`
    echo "UPDATE exchange.known_coins SET denom_sig='\x0000000100000000287369672d76616c200a2028727361200a2020287320233542383731423743393036444643303442424430453039353246413642464132463537303139374131313437353746324632323332394644443146324643333445393939413336363430334233413133324444464239413833353833464536354442374335434445304441453035374438363336434541423834463843323843344446304144363030343430413038353435363039373833434431333239393736423642433437313041324632414132414435413833303432434346314139464635394244434346374436323238344143354544364131373739463430353032323241373838423837363535453434423145443831364244353638303232413123290a2020290a20290b' WHERE coin_pub='$COIN_PUB'" | psql -Aqt $DB

    run_audit aggregator
    echo -n "Testing inconsistency detection... "

    AMOUNT=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
    if test "x$AMOUNT" == "xTESTKUDOS:0"
    then
        exit_fail "Reported total amount wrong: $AMOUNT"
    fi

    OP=`jq -r .bad_sig_losses[0].operation < test-audit-aggregation.json`
    if test "x$OP" != "xwire"
    then
        exit_fail "Reported wrong operation: $OP"
    fi

    echo "OK"
    # Cannot undo aggregation, do full reload
    full_reload
}



function test_33() {

    echo "===========33: normal run with aggregator and profit drain==========="
    run_audit aggregator drain

    echo "Checking output"
    # if an emergency was detected, that is a bug and we should fail
    echo -n "Test for emergencies... "
    jq -e .emergencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency detected in ordinary run" || echo PASS
    echo -n "Test for deposit confirmation emergencies... "
    jq -e .deposit_confirmation_inconsistencies[0] < test-audit-deposits.json > /dev/null && exit_fail "Unexpected deposit confirmation inconsistency detected" || echo PASS
    echo -n "Test for emergencies by count... "
    jq -e .emergencies_by_count[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected emergency by count detected in ordinary run" || echo PASS

    echo -n "Test for wire inconsistencies... "
    jq -e .wire_out_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire out inconsistency detected in ordinary run"
    jq -e .reserve_in_amount_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected reserve in inconsistency detected in ordinary run"
    jq -e .misattribution_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected misattribution inconsistency detected in ordinary run"
    jq -e .row_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected row inconsistency detected in ordinary run"
    jq -e .denomination_key_validity_withdraw_inconsistencies[0] < test-audit-reserves.json > /dev/null && exit_fail "Unexpected denomination key withdraw inconsistency detected in ordinary run"
    jq -e .row_minor_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected minor row inconsistency detected in ordinary run"
    jq -e .lag_details[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected lag detected in ordinary run"
    jq -e .wire_format_inconsistencies[0] < test-audit-wire.json > /dev/null && exit_fail "Unexpected wire format inconsistencies detected in ordinary run"


    # TODO: check operation balances are correct (once we have all transaction types and wallet is deterministic)
    # TODO: check revenue summaries are correct (once we have all transaction types and wallet is deterministic)

    echo PASS

    LOSS=`jq -r .total_bad_sig_loss < test-audit-aggregation.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss from aggregation, got unexpected loss of $LOSS"
    fi
    LOSS=`jq -r .total_bad_sig_loss < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss from coins, got unexpected loss of $LOSS"
    fi
    LOSS=`jq -r .total_bad_sig_loss < test-audit-reserves.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong total bad sig loss from reserves, got unexpected loss of $LOSS"
    fi

    echo -n "Test for wire amounts... "
    WIRED=`jq -r .total_wire_in_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_in_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_plus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta plus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_wire_out_delta_minus < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total wire delta minus wrong, got $WIRED"
    fi
    WIRED=`jq -r .total_misattribution_in < test-audit-wire.json`
    if test $WIRED != "TESTKUDOS:0"
    then
        exit_fail "Expected total misattribution in wrong, got $WIRED"
    fi
    echo PASS

    echo -n "Checking for unexpected arithmetic differences "
    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-aggregation.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from aggregations, got unexpected plus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-aggregation.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from aggregation, got unexpected minus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from coins, got unexpected plus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-coins.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from coins, got unexpected minus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_plus < test-audit-reserves.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from reserves, got unexpected plus of $LOSS"
    fi
    LOSS=`jq -r .total_arithmetic_delta_minus < test-audit-reserves.json`
    if test $LOSS != "TESTKUDOS:0"
    then
        exit_fail "Wrong arithmetic delta from reserves, got unexpected minus of $LOSS"
    fi

    DRAINED=`jq -r .total_drained < test-audit-wire.json`
    if test $DRAINED != "TESTKUDOS:0.1"
    then
        exit_fail "Wrong amount drained, got unexpected drain of $DRAINED"
    fi

    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-aggregation.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from aggregations detected in ordinary run"
    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-coins.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from coins detected in ordinary run"
    jq -e .amount_arithmetic_inconsistencies[0] < test-audit-reserves.json > /dev/null && exit_fail "Unexpected arithmetic inconsistencies from reserves detected in ordinary run"
    echo PASS

    echo -n "Checking for unexpected wire out differences "
    jq -e .wire_out_inconsistencies[0] < test-audit-aggregation.json > /dev/null && exit_fail "Unexpected wire out inconsistencies detected in ordinary run"
    echo PASS

    # cannot easily undo aggregator, hence full reload
    full_reload

}


# *************** Main test loop starts here **************


# Run all the tests against the database given in $1.
# Sets $fail to 0 on success, non-zero on failure.
function check_with_database()
{
    BASEDB=$1
    CONF=$1.conf
    echo "Running test suite with database $BASEDB using configuration $CONF"
    MASTER_PRIV_FILE=${BASEDB}.mpriv
    taler-config -f -c ${CONF} -s exchange-offline -o MASTER_PRIV_FILE -V ${MASTER_PRIV_FILE}
    MASTER_PUB=`gnunet-ecc -p $MASTER_PRIV_FILE`

    echo "MASTER PUB is ${MASTER_PUB} using file ${MASTER_PRIV_FILE}"

    # Load database
    full_reload

    # Run test suite
    fail=0
    for i in $TESTS
    do
        test_$i
        if test 0 != $fail
        then
            break
        fi
    done
    echo "Cleanup (disabled, leaving database $DB behind)"
    # dropdb $DB
}






# *************** Main logic starts here **************

# ####### Setup globals ######
# Postgres database to use
DB=auditor-basedb

# test required commands exist
echo "Testing for jq"
jq -h > /dev/null || exit_skip "jq required"
echo "Testing for faketime"
faketime -h > /dev/null || exit_skip "faketime required"
# NOTE: really check for all three libeufin commands?
echo "Testing for libeufin"
libeufin-cli --help >/dev/null 2> /dev/null </dev/null || exit_skip "libeufin required"
echo "Testing for pdflatex"
which pdflatex > /dev/null </dev/null || exit_skip "pdflatex required"
echo "Testing for taler-wallet-cli"
taler-wallet-cli -h >/dev/null </dev/null 2>/dev/null || exit_skip "taler-wallet-cli required"


echo -n "Testing for Postgres"
# Available directly in path?
INITDB_BIN=$(command -v initdb) || true
if [[ ! -z $INITDB_BIN ]]; then
  echo " FOUND (in path) at" $INITDB_BIN
else
  HAVE_INITDB=`find /usr -name "initdb" 2> /dev/null | grep postgres` || exit_skip " MISSING"
  echo " FOUND at" `dirname $HAVE_INITDB`
  INITDB_BIN=`echo $HAVE_INITDB | grep bin/initdb | grep postgres | sort -n | tail -n1`
fi
echo -n "Setting up Postgres DB"
POSTGRES_PATH=`dirname $INITDB_BIN`
TMPDIR=`mktemp -d /tmp/taler-test-postgresXXXXXX`
$INITDB_BIN --no-sync --auth=trust -D ${TMPDIR} > postgres-dbinit.log 2> postgres-dbinit.err
echo " DONE"
mkdir ${TMPDIR}/sockets
echo -n "Launching Postgres service"
cat - >> $TMPDIR/postgresql.conf <<EOF
unix_socket_directories='${TMPDIR}/sockets'
fsync=off
max_wal_senders=0
synchronous_commit=off
wal_level=minimal
listen_addresses=''
EOF
cat $TMPDIR/pg_hba.conf | grep -v host > $TMPDIR/pg_hba.conf.new
mv $TMPDIR/pg_hba.conf.new  $TMPDIR/pg_hba.conf
${POSTGRES_PATH}/pg_ctl -D $TMPDIR -l /dev/null start > postgres-start.log 2> postgres-start.err
echo " DONE"
PGHOST="$TMPDIR/sockets"
export PGHOST

MYDIR=`mktemp -d /tmp/taler-auditor-basedbXXXXXX`
echo "Generating fresh database at $MYDIR"
rm -f ${DB}-nexus.sqlite3 ${DB}-sandbox.sqlite3 2> /dev/null || true # libeufin
if faketime -f '-1 d' ./generate-auditor-basedb.sh $MYDIR/$DB
then
    check_with_database $MYDIR/$DB
    if test x$fail != x0
    then
        exit $fail
    else
        echo "Cleaning up $MYDIR..."
        rm -rf $MYDIR || echo "Removing $MYDIR failed"
        rm -rf $TMPDIR || echo "Removing $TMPDIR failed"
    fi
else
    echo "Generation failed"
    exit 1
fi

exit 0