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path: root/src/pkg/hash/crc32/crc32_test.go
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Diffstat (limited to 'src/pkg/hash/crc32/crc32_test.go')
-rw-r--r--src/pkg/hash/crc32/crc32_test.go99
1 files changed, 0 insertions, 99 deletions
diff --git a/src/pkg/hash/crc32/crc32_test.go b/src/pkg/hash/crc32/crc32_test.go
deleted file mode 100644
index 75dc26e7c..000000000
--- a/src/pkg/hash/crc32/crc32_test.go
+++ /dev/null
@@ -1,99 +0,0 @@
-// 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.
-
-package crc32
-
-import (
- "io"
- "testing"
-)
-
-type test struct {
- ieee, castagnoli uint32
- in string
-}
-
-var golden = []test{
- {0x0, 0x0, ""},
- {0xe8b7be43, 0xc1d04330, "a"},
- {0x9e83486d, 0xe2a22936, "ab"},
- {0x352441c2, 0x364b3fb7, "abc"},
- {0xed82cd11, 0x92c80a31, "abcd"},
- {0x8587d865, 0xc450d697, "abcde"},
- {0x4b8e39ef, 0x53bceff1, "abcdef"},
- {0x312a6aa6, 0xe627f441, "abcdefg"},
- {0xaeef2a50, 0xa9421b7, "abcdefgh"},
- {0x8da988af, 0x2ddc99fc, "abcdefghi"},
- {0x3981703a, 0xe6599437, "abcdefghij"},
- {0x6b9cdfe7, 0xb2cc01fe, "Discard medicine more than two years old."},
- {0xc90ef73f, 0xe28207f, "He who has a shady past knows that nice guys finish last."},
- {0xb902341f, 0xbe93f964, "I wouldn't marry him with a ten foot pole."},
- {0x42080e8, 0x9e3be0c3, "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
- {0x154c6d11, 0xf505ef04, "The days of the digital watch are numbered. -Tom Stoppard"},
- {0x4c418325, 0x85d3dc82, "Nepal premier won't resign."},
- {0x33955150, 0xc5142380, "For every action there is an equal and opposite government program."},
- {0x26216a4b, 0x75eb77dd, "His money is twice tainted: 'taint yours and 'taint mine."},
- {0x1abbe45e, 0x91ebe9f7, "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
- {0xc89a94f7, 0xf0b1168e, "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
- {0xab3abe14, 0x572b74e2, "size: a.out: bad magic"},
- {0xbab102b6, 0x8a58a6d5, "The major problem is with sendmail. -Mark Horton"},
- {0x999149d7, 0x9c426c50, "Give me a rock, paper and scissors and I will move the world. CCFestoon"},
- {0x6d52a33c, 0x735400a4, "If the enemy is within range, then so are you."},
- {0x90631e8d, 0xbec49c95, "It's well we cannot hear the screams/That we create in others' dreams."},
- {0x78309130, 0xa95a2079, "You remind me of a TV show, but that's all right: I watch it anyway."},
- {0x7d0a377f, 0xde2e65c5, "C is as portable as Stonehedge!!"},
- {0x8c79fd79, 0x297a88ed, "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
- {0xa20b7167, 0x66ed1d8b, "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction. Lewis-Randall Rule"},
- {0x8e0bb443, 0xdcded527, "How can you write a big system without C++? -Paul Glick"},
-}
-
-func TestGolden(t *testing.T) {
- castagnoliTab := MakeTable(Castagnoli)
-
- for _, g := range golden {
- ieee := NewIEEE()
- io.WriteString(ieee, g.in)
- s := ieee.Sum32()
- if s != g.ieee {
- t.Errorf("IEEE(%s) = 0x%x want 0x%x", g.in, s, g.ieee)
- }
-
- castagnoli := New(castagnoliTab)
- io.WriteString(castagnoli, g.in)
- s = castagnoli.Sum32()
- if s != g.castagnoli {
- t.Errorf("Castagnoli(%s) = 0x%x want 0x%x", g.in, s, g.castagnoli)
- }
-
- if len(g.in) > 0 {
- // The SSE4.2 implementation of this has code to deal
- // with misaligned data so we ensure that we test that
- // too.
- castagnoli = New(castagnoliTab)
- io.WriteString(castagnoli, g.in[:1])
- io.WriteString(castagnoli, g.in[1:])
- s = castagnoli.Sum32()
- if s != g.castagnoli {
- t.Errorf("Castagnoli[misaligned](%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 := NewIEEE()
- in := make([]byte, 0, h.Size())
-
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- h.Reset()
- h.Write(data)
- h.Sum(in)
- }
-}