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murmur_test.go
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murmur_test.go
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package murmur3
import (
"fmt"
"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 TestRefStrings(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)
}
var h32_byte hash.Hash32 = New32()
h32_byte.Write([]byte(elem.s))
target := fmt.Sprintf("%08x", elem.h32)
if p := fmt.Sprintf("%x", h32_byte.Sum(nil)); p != target {
t.Errorf("'%s': %s (want %s)", elem.s, p, target)
}
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)
}
var h64_byte hash.Hash64 = New64()
h64_byte.Write([]byte(elem.s))
target = fmt.Sprintf("%016x", elem.h64_1)
if p := fmt.Sprintf("%x", h64_byte.Sum(nil)); p != target {
t.Errorf("Sum64: '%s': %s (want %s)", elem.s, p, target)
}
if v := Sum64([]byte(elem.s)); v != elem.h64_1 {
t.Errorf("Sum64: '%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("New128: '%s': 0x%x-0x%x (want 0x%x-0x%x)", elem.s, v1, v2, elem.h64_1, elem.h64_2)
}
var h128_byte Hash128 = New128()
h128_byte.Write([]byte(elem.s))
target = fmt.Sprintf("%016x%016x", elem.h64_1, elem.h64_2)
if p := fmt.Sprintf("%x", h128_byte.Sum(nil)); p != target {
t.Errorf("New128: '%s': %s (want %s)", elem.s, p, target)
}
if v1, v2 := Sum128([]byte(elem.s)); v1 != elem.h64_1 || v2 != elem.h64_2 {
t.Errorf("Sum128: '%s': 0x%x-0x%x (want 0x%x-0x%x)", elem.s, v1, v2, elem.h64_1, elem.h64_2)
}
}
}