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minio/pkg/hash/crc32c/crc32c_linux_test.go

81 lines
2.7 KiB

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Golang project:
// https://github.com/golang/go/blob/master/LICENSE
// Using this part of Minio codebase under the license
// Apache License Version 2.0 with modifications
package crc32c
import (
"testing"
)
type test struct {
castagnoli uint32
in string
}
var golden = []test{
{0x0, ""},
{0x93ad1061, "a"},
{0x13c35ee4, "ab"},
{0x562f9ccd, "abc"},
{0xdaaf41f6, "abcd"},
{0x8122a0a2, "abcde"},
{0x496937b, "abcdef"},
{0x5d199e2c, "abcdefg"},
{0x86bc933d, "abcdefgh"},
{0x9639f15f, "abcdefghi"},
{0x584645c, "abcdefghij"},
{0x8c13a060, "Discard medicine more than two years old."},
{0x629077d4, "He who has a shady past knows that nice guys finish last."},
{0xd20036a4, "I wouldn't marry him with a ten foot pole."},
{0xf283b768, "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
{0x9cd61a9f, "The days of the digital watch are numbered. -Tom Stoppard"},
{0x637702f5, "Nepal premier won't resign."},
{0x6c595588, "For every action there is an equal and opposite government program."},
{0x19532076, "His money is twice tainted: 'taint yours and 'taint mine."},
{0x9b82c857, "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
{0x2b485952, "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
{0xd3d0980c, "size: a.out: bad magic"},
{0x12aad0bb, "The major problem is with sendmail. -Mark Horton"},
{0x83a0339b, "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
{0x1eb28fde, "If the enemy is within range, then so are you."},
{0xce34d559, "It's well we cannot hear the screams/That we create in others' dreams."},
{0x71576691, "You remind me of a TV show, but that's all right: I watch it anyway."},
{0x54bf536f, "C is as portable as Stonehedge!!"},
{0x2313a94d, "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
{0x9d4e3629, "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
{0xc9991fb9, "How can you write a big system without C++? -Paul Glick"},
}
func TestGolden(t *testing.T) {
for _, g := range golden {
s := Sum32([]byte(g.in))
if s != g.castagnoli {
t.Errorf("Castagnoli(%s) = 0x%x want 0x%x", g.in, s, g.castagnoli)
}
}
}
func BenchmarkCrc32KB(b *testing.B) {
b.SetBytes(1024)
data := make([]byte, 1024)
for i := range data {
data[i] = byte(i)
}
h := New()
in := make([]byte, 0, h.Size())
b.ResetTimer()
for i := 0; i < b.N; i++ {
h.Reset()
h.Write(data)
h.Sum(in)
}
}