Branch data Line data Source code
1 : : // Copyright (c) 2016-present The Bitcoin Core developers
2 : : // Distributed under the MIT software license, see the accompanying
3 : : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
4 : :
5 : : #include <consensus/amount.h>
6 : : #include <policy/feerate.h>
7 : :
8 : : #include <limits>
9 : :
10 : : #include <boost/test/unit_test.hpp>
11 : :
12 : : BOOST_AUTO_TEST_SUITE(amount_tests)
13 : :
14 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(MoneyRangeTest)
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15 : : {
16 [ + - ]: 1 : BOOST_CHECK_EQUAL(MoneyRange(CAmount(-1)), false);
17 [ + - ]: 1 : BOOST_CHECK_EQUAL(MoneyRange(CAmount(0)), true);
18 [ + - ]: 1 : BOOST_CHECK_EQUAL(MoneyRange(CAmount(1)), true);
19 [ + - ]: 1 : BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY), true);
20 [ + - ]: 1 : BOOST_CHECK_EQUAL(MoneyRange(MAX_MONEY + CAmount(1)), false);
21 : 1 : }
22 : :
23 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(GetFeeTest)
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24 : : {
25 : 1 : CFeeRate feeRate, altFeeRate;
26 : :
27 : 1 : feeRate = CFeeRate(0);
28 : : // Must always return 0
29 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
30 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(1e5), CAmount(0));
31 : :
32 : 1 : feeRate = CFeeRate(1000);
33 : : // Must always just return the arg
34 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
35 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(1));
36 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(121));
37 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(999));
38 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(1e3));
39 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(9e3));
40 : :
41 : 1 : feeRate = CFeeRate(-1000);
42 : : // Must always just return -1 * arg
43 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
44 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(1), CAmount(-1));
45 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(-121));
46 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(-999));
47 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(-1e3));
48 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(-9e3));
49 : :
50 : 1 : feeRate = CFeeRate(123);
51 : : // Rounds up the result, if not integer
52 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
53 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(1)); // Special case: returns 1 instead of 0
54 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(2));
55 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(121), CAmount(15));
56 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(122), CAmount(16));
57 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(999), CAmount(123));
58 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(1e3), CAmount(123));
59 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(9e3), CAmount(1107));
60 : :
61 : 1 : feeRate = CFeeRate(-123);
62 : : // Truncates the result, if not integer
63 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(0), CAmount(0));
64 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(8), CAmount(-1)); // Special case: returns -1 instead of 0
65 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(9), CAmount(-1));
66 : :
67 : : // check alternate constructor
68 : 1 : feeRate = CFeeRate(1000);
69 : 1 : altFeeRate = CFeeRate(feeRate);
70 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.GetFee(100), altFeeRate.GetFee(100));
71 : :
72 : : // Check full constructor
73 [ + - + - ]: 2 : BOOST_CHECK(CFeeRate(CAmount(-1), 0) == CFeeRate(0));
74 [ + - + - ]: 2 : BOOST_CHECK(CFeeRate(CAmount(0), 0) == CFeeRate(0));
75 [ + - + - ]: 2 : BOOST_CHECK(CFeeRate(CAmount(1), 0) == CFeeRate(0));
76 [ + - + - ]: 2 : BOOST_CHECK(CFeeRate(CAmount(1), -1000) == CFeeRate(0));
77 : : // default value
78 [ + - + - ]: 2 : BOOST_CHECK(CFeeRate(CAmount(-1), 1000) == CFeeRate(-1));
79 [ + - + - ]: 2 : BOOST_CHECK(CFeeRate(CAmount(0), 1000) == CFeeRate(0));
80 [ + - + - ]: 2 : BOOST_CHECK(CFeeRate(CAmount(1), 1000) == CFeeRate(1));
81 : : // Previously, precision was limited to three decimal digits
82 : : // due to only supporting satoshis per kB, so CFeeRate(CAmount(1), 1001) was equal to CFeeRate(0)
83 : : // Since #32750, higher precision is maintained.
84 [ + - + - : 2 : BOOST_CHECK(CFeeRate(CAmount(1), 1001) > CFeeRate(0) && CFeeRate(CAmount(1), 1001) < CFeeRate(1));
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85 [ + - + - : 2 : BOOST_CHECK(CFeeRate(CAmount(2), 1001) > CFeeRate(1) && CFeeRate(CAmount(2), 1001) < CFeeRate(2));
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86 : : // some more integer checks
87 [ + - + - : 2 : BOOST_CHECK(CFeeRate(CAmount(26), 789) > CFeeRate(32) && CFeeRate(CAmount(26), 789) < CFeeRate(33));
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88 [ + - + - : 2 : BOOST_CHECK(CFeeRate(CAmount(27), 789) > CFeeRate(34) && CFeeRate(CAmount(27), 789) < CFeeRate(35));
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89 : : // Maximum size in bytes, should not crash
90 : 1 : CFeeRate(MAX_MONEY, std::numeric_limits<int32_t>::max()).GetFeePerK();
91 : :
92 : : // check multiplication operator
93 : : // check multiplying by zero
94 : 1 : feeRate = CFeeRate(1000);
95 [ + - + - ]: 2 : BOOST_CHECK(0 * feeRate == CFeeRate(0));
96 [ + - + - ]: 2 : BOOST_CHECK(feeRate * 0 == CFeeRate(0));
97 : : // check multiplying by a positive integer
98 [ + - + - ]: 2 : BOOST_CHECK(3 * feeRate == CFeeRate(3000));
99 [ + - + - ]: 2 : BOOST_CHECK(feeRate * 3 == CFeeRate(3000));
100 : : // check multiplying by a negative integer
101 [ + - + - ]: 2 : BOOST_CHECK(-3 * feeRate == CFeeRate(-3000));
102 [ + - + - ]: 2 : BOOST_CHECK(feeRate * -3 == CFeeRate(-3000));
103 : : // check commutativity
104 [ + - + - : 2 : BOOST_CHECK(2 * feeRate == feeRate * 2);
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105 : : // check with large numbers
106 : 1 : int largeNumber = 1000000;
107 [ + - + - : 2 : BOOST_CHECK(largeNumber * feeRate == feeRate * largeNumber);
+ - ]
108 : : // check boundary values
109 : 1 : int maxInt = std::numeric_limits<int>::max();
110 : 1 : feeRate = CFeeRate(maxInt);
111 [ + - + - ]: 2 : BOOST_CHECK(feeRate * 2 == CFeeRate(static_cast<int64_t>(maxInt) * 2));
112 [ + - + - ]: 2 : BOOST_CHECK(2 * feeRate == CFeeRate(static_cast<int64_t>(maxInt) * 2));
113 : : // check with zero fee rate
114 : 1 : feeRate = CFeeRate(0);
115 [ + - + - ]: 2 : BOOST_CHECK(feeRate * 5 == CFeeRate(0));
116 [ + - + - ]: 2 : BOOST_CHECK(5 * feeRate == CFeeRate(0));
117 : 1 : }
118 : :
119 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(BinaryOperatorTest)
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120 : : {
121 : 1 : CFeeRate a, b;
122 : 1 : a = CFeeRate(1);
123 : 1 : b = CFeeRate(2);
124 [ + - ]: 2 : BOOST_CHECK(a < b);
125 [ + - ]: 2 : BOOST_CHECK(b > a);
126 [ + - ]: 2 : BOOST_CHECK(a == a);
127 [ + - ]: 2 : BOOST_CHECK(a <= b);
128 [ + - ]: 2 : BOOST_CHECK(a <= a);
129 [ + - ]: 2 : BOOST_CHECK(b >= a);
130 [ + - ]: 2 : BOOST_CHECK(b >= b);
131 : : // a should be 0.00000002 BTC/kvB now
132 : 1 : a += a;
133 [ + - ]: 2 : BOOST_CHECK(a == b);
134 : 1 : }
135 : :
136 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(ToStringTest)
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137 : : {
138 : 1 : CFeeRate feeRate;
139 : 1 : feeRate = CFeeRate(1);
140 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.ToString(), "0.00000001 BTC/kvB");
141 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.ToString(FeeEstimateMode::BTC_KVB), "0.00000001 BTC/kvB");
142 [ + - ]: 1 : BOOST_CHECK_EQUAL(feeRate.ToString(FeeEstimateMode::SAT_VB), "0.001 sat/vB");
143 : 1 : }
144 : :
145 : : BOOST_AUTO_TEST_SUITE_END()
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