aboutsummaryrefslogtreecommitdiff
path: root/src/test/amount_tests.cpp
blob: 114fe3907c6ded3f1c0d52176f680cdc29e1fef6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
// Copyright (c) 2016-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <consensus/amount.h>
#include <policy/feerate.h>

#include <limits>

#include <boost/test/unit_test.hpp>

BOOST_AUTO_TEST_SUITE(amount_tests)

BOOST_AUTO_TEST_CASE(MoneyRangeTest)
{
    BOOST_CHECK_EQUAL(MoneyRange(CAmount(-1)), false);
    BOOST_CHECK_EQUAL(MoneyRange(CAmount(0)), true);
    BOOST_CHECK_EQUAL(MoneyRange(CAmount(1)), true);
    BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY), true);
    BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY + CAmount(1)), false);
}

BOOST_AUTO_TEST_CASE(GetFeeTest)
{
    CFeeRate feeRate, altFeeRate;

    feeRate = CFeeRate(0);
    // Must always return 0
    BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
    BOOST_CHECK_EQUAL(feeRate.GetFee(1e5), CAmount(0));

    feeRate = CFeeRate(1000);
    // Must always just return the arg
    BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
    BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(1));
    BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(121));
    BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(999));
    BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(1e3));
    BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(9e3));

    feeRate = CFeeRate(-1000);
    // Must always just return -1 * arg
    BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
    BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(-1));
    BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(-121));
    BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(-999));
    BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(-1e3));
    BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(-9e3));

    feeRate = CFeeRate(123);
    // Truncates the result, if not integer
    BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
    BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(1)); // Special case: returns 1 instead of 0
    BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(1));
    BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(14));
    BOOST_CHECK_EQUAL(feeRate.GetFee(122), CAmount(15));
    BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(122));
    BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(123));
    BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(1107));

    feeRate = CFeeRate(-123);
    // Truncates the result, if not integer
    BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
    BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(-1)); // Special case: returns -1 instead of 0
    BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(-1));

    // check alternate constructor
    feeRate = CFeeRate(1000);
    altFeeRate = CFeeRate(feeRate);
    BOOST_CHECK_EQUAL(feeRate.GetFee(100), altFeeRate.GetFee(100));

    // Check full constructor
    BOOST_CHECK(CFeeRate(CAmount(-1), 0) == CFeeRate(0));
    BOOST_CHECK(CFeeRate(CAmount(0), 0) == CFeeRate(0));
    BOOST_CHECK(CFeeRate(CAmount(1), 0) == CFeeRate(0));
    // default value
    BOOST_CHECK(CFeeRate(CAmount(-1), 1000) == CFeeRate(-1));
    BOOST_CHECK(CFeeRate(CAmount(0), 1000) == CFeeRate(0));
    BOOST_CHECK(CFeeRate(CAmount(1), 1000) == CFeeRate(1));
    // lost precision (can only resolve satoshis per kB)
    BOOST_CHECK(CFeeRate(CAmount(1), 1001) == CFeeRate(0));
    BOOST_CHECK(CFeeRate(CAmount(2), 1001) == CFeeRate(1));
    // some more integer checks
    BOOST_CHECK(CFeeRate(CAmount(26), 789) == CFeeRate(32));
    BOOST_CHECK(CFeeRate(CAmount(27), 789) == CFeeRate(34));
    // Maximum size in bytes, should not crash
    CFeeRate(MAX_MONEY, std::numeric_limits<uint32_t>::max()).GetFeePerK();
}

BOOST_AUTO_TEST_CASE(BinaryOperatorTest)
{
    CFeeRate a, b;
    a = CFeeRate(1);
    b = CFeeRate(2);
    BOOST_CHECK(a < b);
    BOOST_CHECK(b > a);
    BOOST_CHECK(a == a);
    BOOST_CHECK(a <= b);
    BOOST_CHECK(a <= a);
    BOOST_CHECK(b >= a);
    BOOST_CHECK(b >= b);
    // a should be 0.00000002 BTC/kvB now
    a += a;
    BOOST_CHECK(a == b);
}

BOOST_AUTO_TEST_CASE(ToStringTest)
{
    CFeeRate feeRate;
    feeRate = CFeeRate(1);
    BOOST_CHECK_EQUAL(feeRate.ToString(), "0.00000001 BTC/kvB");
    BOOST_CHECK_EQUAL(feeRate.ToString(FeeEstimateMode::BTC_KVB), "0.00000001 BTC/kvB");
    BOOST_CHECK_EQUAL(feeRate.ToString(FeeEstimateMode::SAT_VB), "0.001 sat/vB");
}

BOOST_AUTO_TEST_SUITE_END()