+++ /dev/null
-package murmur3
-
-import (
- "hash"
- "testing"
-)
-
-var data = []struct {
- h32 uint32
- h64_1 uint64
- h64_2 uint64
- s string
-}{
- {0x00000000, 0x0000000000000000, 0x0000000000000000, ""},
- {0x248bfa47, 0xcbd8a7b341bd9b02, 0x5b1e906a48ae1d19, "hello"},
- {0x149bbb7f, 0x342fac623a5ebc8e, 0x4cdcbc079642414d, "hello, world"},
- {0xe31e8a70, 0xb89e5988b737affc, 0x664fc2950231b2cb, "19 Jan 2038 at 3:14:07 AM"},
- {0xd5c48bfc, 0xcd99481f9ee902c9, 0x695da1a38987b6e7, "The quick brown fox jumps over the lazy dog."},
-}
-
-func TestRef(t *testing.T) {
- for _, elem := range data {
-
- var h32 hash.Hash32 = New32()
- h32.Write([]byte(elem.s))
- if v := h32.Sum32(); v != elem.h32 {
- t.Errorf("'%s': 0x%x (want 0x%x)", elem.s, v, elem.h32)
- }
-
- if v := Sum32([]byte(elem.s)); v != elem.h32 {
- t.Errorf("'%s': 0x%x (want 0x%x)", elem.s, v, elem.h32)
- }
-
- var h64 hash.Hash64 = New64()
- h64.Write([]byte(elem.s))
- if v := h64.Sum64(); v != elem.h64_1 {
- t.Errorf("'%s': 0x%x (want 0x%x)", elem.s, v, elem.h64_1)
- }
-
- if v := Sum64([]byte(elem.s)); v != elem.h64_1 {
- t.Errorf("'%s': 0x%x (want 0x%x)", elem.s, v, elem.h64_1)
- }
-
- var h128 Hash128 = New128()
- h128.Write([]byte(elem.s))
- if v1, v2 := h128.Sum128(); v1 != elem.h64_1 || v2 != elem.h64_2 {
- t.Errorf("'%s': 0x%x-0x%x (want 0x%x-0x%x)", elem.s, v1, v2, elem.h64_1, elem.h64_2)
- }
-
- if v1, v2 := Sum128([]byte(elem.s)); v1 != elem.h64_1 || v2 != elem.h64_2 {
- t.Errorf("'%s': 0x%x-0x%x (want 0x%x-0x%x)", elem.s, v1, v2, elem.h64_1, elem.h64_2)
- }
- }
-}
-
-func TestIncremental(t *testing.T) {
- for _, elem := range data {
- h32 := New32()
- h128 := New128()
- for i, j, k := 0, 0, len(elem.s); i < k; i = j {
- j = 2*i + 3
- if j > k {
- j = k
- }
- s := elem.s[i:j]
- print(s + "|")
- h32.Write([]byte(s))
- h128.Write([]byte(s))
- }
- println()
- if v := h32.Sum32(); v != elem.h32 {
- t.Errorf("'%s': 0x%x (want 0x%x)", elem.s, v, elem.h32)
- }
- if v1, v2 := h128.Sum128(); v1 != elem.h64_1 || v2 != elem.h64_2 {
- t.Errorf("'%s': 0x%x-0x%x (want 0x%x-0x%x)", elem.s, v1, v2, elem.h64_1, elem.h64_2)
- }
- }
-}
-
-//---
-
-func bench32(b *testing.B, length int) {
- buf := make([]byte, length)
- b.SetBytes(int64(length))
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- Sum32(buf)
- }
-}
-
-func Benchmark32_1(b *testing.B) {
- bench32(b, 1)
-}
-func Benchmark32_2(b *testing.B) {
- bench32(b, 2)
-}
-func Benchmark32_4(b *testing.B) {
- bench32(b, 4)
-}
-func Benchmark32_8(b *testing.B) {
- bench32(b, 8)
-}
-func Benchmark32_16(b *testing.B) {
- bench32(b, 16)
-}
-func Benchmark32_32(b *testing.B) {
- bench32(b, 32)
-}
-func Benchmark32_64(b *testing.B) {
- bench32(b, 64)
-}
-func Benchmark32_128(b *testing.B) {
- bench32(b, 128)
-}
-func Benchmark32_256(b *testing.B) {
- bench32(b, 256)
-}
-func Benchmark32_512(b *testing.B) {
- bench32(b, 512)
-}
-func Benchmark32_1024(b *testing.B) {
- bench32(b, 1024)
-}
-func Benchmark32_2048(b *testing.B) {
- bench32(b, 2048)
-}
-func Benchmark32_4096(b *testing.B) {
- bench32(b, 4096)
-}
-func Benchmark32_8192(b *testing.B) {
- bench32(b, 8192)
-}
-
-//---
-
-func benchPartial32(b *testing.B, length int) {
- buf := make([]byte, length)
- b.SetBytes(int64(length))
-
- start := (32 / 8) / 2
- chunks := 7
- k := length / chunks
- tail := (length - start) % k
-
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- hasher := New32()
- hasher.Write(buf[0:start])
-
- for j := start; j+k <= length; j += k {
- hasher.Write(buf[j : j+k])
- }
-
- hasher.Write(buf[length-tail:])
- hasher.Sum32()
- }
-}
-
-func BenchmarkPartial32_8(b *testing.B) {
- benchPartial32(b, 8)
-}
-func BenchmarkPartial32_16(b *testing.B) {
- benchPartial32(b, 16)
-}
-func BenchmarkPartial32_32(b *testing.B) {
- benchPartial32(b, 32)
-}
-func BenchmarkPartial32_64(b *testing.B) {
- benchPartial32(b, 64)
-}
-func BenchmarkPartial32_128(b *testing.B) {
- benchPartial32(b, 128)
-}
-
-//---
-
-func bench128(b *testing.B, length int) {
- buf := make([]byte, length)
- b.SetBytes(int64(length))
- b.ResetTimer()
- for i := 0; i < b.N; i++ {
- Sum128(buf)
- }
-}
-
-func Benchmark128_1(b *testing.B) {
- bench128(b, 1)
-}
-func Benchmark128_2(b *testing.B) {
- bench128(b, 2)
-}
-func Benchmark128_4(b *testing.B) {
- bench128(b, 4)
-}
-func Benchmark128_8(b *testing.B) {
- bench128(b, 8)
-}
-func Benchmark128_16(b *testing.B) {
- bench128(b, 16)
-}
-func Benchmark128_32(b *testing.B) {
- bench128(b, 32)
-}
-func Benchmark128_64(b *testing.B) {
- bench128(b, 64)
-}
-func Benchmark128_128(b *testing.B) {
- bench128(b, 128)
-}
-func Benchmark128_256(b *testing.B) {
- bench128(b, 256)
-}
-func Benchmark128_512(b *testing.B) {
- bench128(b, 512)
-}
-func Benchmark128_1024(b *testing.B) {
- bench128(b, 1024)
-}
-func Benchmark128_2048(b *testing.B) {
- bench128(b, 2048)
-}
-func Benchmark128_4096(b *testing.B) {
- bench128(b, 4096)
-}
-func Benchmark128_8192(b *testing.B) {
- bench128(b, 8192)
-}
-
-//---
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