lbcutil/bloom/murmurhash3_test.go
2015-05-01 12:41:58 -05:00

45 lines
1.4 KiB
Go

// Copyright (c) 2013, 2014 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package bloom_test
import (
"testing"
"github.com/btcsuite/btcutil/bloom"
)
// TestMurmurHash3 ensure the MurmurHash3 function produces the correct hash
// when given various seeds and data.
func TestMurmurHash3(t *testing.T) {
var tests = []struct {
seed uint32
data []byte
out uint32
}{
{0x00000000, []byte{}, 0x00000000},
{0xfba4c795, []byte{}, 0x6a396f08},
{0xffffffff, []byte{}, 0x81f16f39},
{0x00000000, []byte{0x00}, 0x514e28b7},
{0xfba4c795, []byte{0x00}, 0xea3f0b17},
{0x00000000, []byte{0xff}, 0xfd6cf10d},
{0x00000000, []byte{0x00, 0x11}, 0x16c6b7ab},
{0x00000000, []byte{0x00, 0x11, 0x22}, 0x8eb51c3d},
{0x00000000, []byte{0x00, 0x11, 0x22, 0x33}, 0xb4471bf8},
{0x00000000, []byte{0x00, 0x11, 0x22, 0x33, 0x44}, 0xe2301fa8},
{0x00000000, []byte{0x00, 0x11, 0x22, 0x33, 0x44, 0x55}, 0xfc2e4a15},
{0x00000000, []byte{0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66}, 0xb074502c},
{0x00000000, []byte{0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77}, 0x8034d2a0},
{0x00000000, []byte{0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88}, 0xb4698def},
}
for i, test := range tests {
result := bloom.MurmurHash3(test.seed, test.data)
if result != test.out {
t.Errorf("MurmurHash3 test #%d failed: got %v want %v\n",
i, result, test.out)
continue
}
}
}