76 lines
1.5 KiB
Go
76 lines
1.5 KiB
Go
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// Copyright (c) 2014-2017 The btcsuite developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package blockchain
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import (
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"math/big"
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"testing"
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)
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// TestBigToCompact ensures BigToCompact converts big integers to the expected
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// compact representation.
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func TestBigToCompact(t *testing.T) {
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tests := []struct {
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in int64
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out uint32
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}{
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{0, 0},
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{-1, 25231360},
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}
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for x, test := range tests {
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n := big.NewInt(test.in)
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r := BigToCompact(n)
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if r != test.out {
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t.Errorf("TestBigToCompact test #%d failed: got %d want %d\n",
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x, r, test.out)
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return
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}
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}
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}
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// TestCompactToBig ensures CompactToBig converts numbers using the compact
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// representation to the expected big intergers.
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func TestCompactToBig(t *testing.T) {
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tests := []struct {
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in uint32
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out int64
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}{
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{10000000, 0},
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}
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for x, test := range tests {
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n := CompactToBig(test.in)
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want := big.NewInt(test.out)
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if n.Cmp(want) != 0 {
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t.Errorf("TestCompactToBig test #%d failed: got %d want %d\n",
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x, n.Int64(), want.Int64())
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return
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}
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}
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}
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// TestCalcWork ensures CalcWork calculates the expected work value from values
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// in compact representation.
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func TestCalcWork(t *testing.T) {
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tests := []struct {
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in uint32
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out int64
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}{
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{10000000, 0},
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}
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for x, test := range tests {
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bits := uint32(test.in)
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r := CalcWork(bits)
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if r.Int64() != test.out {
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t.Errorf("TestCalcWork test #%d failed: got %v want %d\n",
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x, r.Int64(), test.out)
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return
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}
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}
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}
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