diff options
Diffstat (limited to 'src/pkg/hash/crc32/crc32_test.go')
-rw-r--r-- | src/pkg/hash/crc32/crc32_test.go | 99 |
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) - } -} |