initial import

core/hash/hash_test.go

@@ -0,0 +1,42 @@
+package hash
+
+import (
+	"crypto/md5"
+	"fmt"
+	"hash/fnv"
+	"math/big"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+const (
+	text      = "hello, world!\n"
+	md5Digest = "910c8bc73110b0cd1bc5d2bcae782511"
+)
+
+func TestMd5(t *testing.T) {
+	actual := fmt.Sprintf("%x", Md5([]byte(text)))
+	assert.Equal(t, md5Digest, actual)
+}
+
+func BenchmarkHashFnv(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		h := fnv.New32()
+		new(big.Int).SetBytes(h.Sum([]byte(text))).Int64()
+	}
+}
+
+func BenchmarkHashMd5(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		h := md5.New()
+		bytes := h.Sum([]byte(text))
+		new(big.Int).SetBytes(bytes).Int64()
+	}
+}
+
+func BenchmarkMurmur3(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		Hash([]byte(text))
+	}
+}