mv go-crypto files to crypto dir

crypto/merkle/simple_map_test.go

@@ -0,0 +1,54 @@
+package merkle
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tendermint/go-crypto/tmhash"
+)
+
+type strHasher string
+
+func (str strHasher) Hash() []byte {
+	return tmhash.Sum([]byte(str))
+}
+
+func TestSimpleMap(t *testing.T) {
+	{
+		db := newSimpleMap()
+		db.Set("key1", strHasher("value1"))
+		assert.Equal(t, "fa9bc106ffd932d919bee935ceb6cf2b3dd72d8f", fmt.Sprintf("%x", db.Hash()), "Hash didn't match")
+	}
+	{
+		db := newSimpleMap()
+		db.Set("key1", strHasher("value2"))
+		assert.Equal(t, "e00e7dcfe54e9fafef5111e813a587f01ba9c3e8", fmt.Sprintf("%x", db.Hash()), "Hash didn't match")
+	}
+	{
+		db := newSimpleMap()
+		db.Set("key1", strHasher("value1"))
+		db.Set("key2", strHasher("value2"))
+		assert.Equal(t, "eff12d1c703a1022ab509287c0f196130123d786", fmt.Sprintf("%x", db.Hash()), "Hash didn't match")
+	}
+	{
+		db := newSimpleMap()
+		db.Set("key2", strHasher("value2")) // NOTE: out of order
+		db.Set("key1", strHasher("value1"))
+		assert.Equal(t, "eff12d1c703a1022ab509287c0f196130123d786", fmt.Sprintf("%x", db.Hash()), "Hash didn't match")
+	}
+	{
+		db := newSimpleMap()
+		db.Set("key1", strHasher("value1"))
+		db.Set("key2", strHasher("value2"))
+		db.Set("key3", strHasher("value3"))
+		assert.Equal(t, "b2c62a277c08dbd2ad73ca53cd1d6bfdf5830d26", fmt.Sprintf("%x", db.Hash()), "Hash didn't match")
+	}
+	{
+		db := newSimpleMap()
+		db.Set("key2", strHasher("value2")) // NOTE: out of order
+		db.Set("key1", strHasher("value1"))
+		db.Set("key3", strHasher("value3"))
+		assert.Equal(t, "b2c62a277c08dbd2ad73ca53cd1d6bfdf5830d26", fmt.Sprintf("%x", db.Hash()), "Hash didn't match")
+	}
+}