mirror of
https://github.com/ethereum/go-ethereum.git
synced 2026-02-26 15:47:21 +00:00
c7eb37608b
Fix typo in test error message where "MustParseBig" was incorrectly used instead of "MustParseUint64" in the TestMustParseUint64Panic function. The test still functions correctly, but now the error message accurately reflects the function being tested.
117 lines
2.9 KiB
Go
117 lines
2.9 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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"math"
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"testing"
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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 TestOverflow(t *testing.T) {
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for i, test := range []struct {
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x uint64
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y uint64
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overflow bool
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op operation
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}{
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// add operations
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{math.MaxUint64, 1, true, add},
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{math.MaxUint64 - 1, 1, false, add},
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// sub operations
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{0, 1, true, sub},
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{0, 0, false, sub},
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// mul operations
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{0, 0, false, mul},
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{10, 10, false, mul},
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{math.MaxUint64, 2, true, mul},
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{math.MaxUint64, 1, false, mul},
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} {
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var overflows bool
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switch test.op {
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case sub:
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_, overflows = SafeSub(test.x, test.y)
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case add:
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_, overflows = SafeAdd(test.x, test.y)
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case mul:
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_, overflows = SafeMul(test.x, test.y)
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}
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if test.overflow != overflows {
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t.Errorf("%d failed. Expected test to be %v, got %v", i, test.overflow, overflows)
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}
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}
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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("MustParseUint64 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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