mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
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89 lines
2.3 KiB
Go
89 lines
2.3 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package math
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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type operation byte
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const (
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sub operation = iota
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add
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mul
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)
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func TestHexOrDecimal64(t *testing.T) {
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tests := []struct {
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input string
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num uint64
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ok bool
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}{
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{"", 0, true},
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{"0", 0, true},
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{"0x0", 0, true},
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{"12345678", 12345678, true},
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{"0x12345678", 0x12345678, true},
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{"0X12345678", 0x12345678, true},
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// Tests for leading zero behaviour:
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{"0123456789", 123456789, true}, // note: not octal
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{"0x00", 0, true},
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{"0x012345678abc", 0x12345678abc, true},
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// Invalid syntax:
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{"abcdef", 0, false},
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{"0xgg", 0, false},
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// Doesn't fit into 64 bits:
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{"18446744073709551617", 0, false},
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}
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for _, test := range tests {
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var num HexOrDecimal64
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err := num.UnmarshalText([]byte(test.input))
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if (err == nil) != test.ok {
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t.Errorf("ParseUint64(%q) -> (err == nil) = %t, want %t", test.input, err == nil, test.ok)
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continue
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}
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if err == nil && uint64(num) != test.num {
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t.Errorf("ParseUint64(%q) -> %d, want %d", test.input, num, test.num)
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}
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}
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}
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func TestMustParseUint64(t *testing.T) {
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if v := MustParseUint64("12345"); v != 12345 {
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t.Errorf(`MustParseUint64("12345") = %d, want 12345`, v)
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}
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}
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func TestMustParseUint64Panic(t *testing.T) {
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defer func() {
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if recover() == nil {
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t.Error("MustParseBig should've panicked")
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}
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}()
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MustParseUint64("ggg")
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}
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func TestAbsoluteDifference(t *testing.T) {
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x1 := uint64(99)
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x2 := uint64(45)
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assert.Equal(t, AbsoluteDifference(x1, x2), x1-x2)
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assert.Equal(t, AbsoluteDifference(x2, x1), x1-x2)
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}
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