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The [pull-tester](/qa/pull-tester/) folder contains a script to call
multiple tests from the [rpc-tests](/qa/rpc-tests/) folder.
Every pull request to the bitcoin repository is built and run through
the regression test suite. You can also run all or only individual
tests locally.
Test dependencies
=================
Before running the tests, the following must be installed.
Unix
----
The python-zmq library is required. On Ubuntu or Debian it can be installed via:
```
sudo apt-get install python-zmq
```
Running tests
=============
You can run any single test by calling `qa/pull-tester/rpc-tests.py <testname>`.
Or you can run any combination of tests by calling `qa/pull-tester/rpc-tests.py <testname1> <testname2> <testname3> ...`
Run the regression test suite with `qa/pull-tester/rpc-tests.py`
Run all possible tests with `qa/pull-tester/rpc-tests.py -extended`
Possible options:
```
-h, --help show this help message and exit
--nocleanup Leave bitcoinds and test.* datadir on exit or error
--noshutdown Don't stop bitcoinds after the test execution
--srcdir=SRCDIR Source directory containing bitcoind/bitcoin-cli
(default: ../../src)
--tmpdir=TMPDIR Root directory for datadirs
--tracerpc Print out all RPC calls as they are made
--coveragedir=COVERAGEDIR
Write tested RPC commands into this directory
```
If you set the environment variable `PYTHON_DEBUG=1` you will get some debug
output (example: `PYTHON_DEBUG=1 qa/pull-tester/rpc-tests.py wallet`).
A 200-block -regtest blockchain and wallets for four nodes
is created the first time a regression test is run and
is stored in the cache/ directory. Each node has 25 mature
blocks (25*50=1250 BTC) in its wallet.
After the first run, the cache/ blockchain and wallets are
copied into a temporary directory and used as the initial
test state.
If you get into a bad state, you should be able
to recover with:
```bash
rm -rf cache
killall bitcoind
```
Writing tests
=============
You are encouraged to write tests for new or existing features.
Further information about the test framework and individual rpc
tests is found in [qa/rpc-tests](/qa/rpc-tests).
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