test(pkg/store): unit test score serialization and deserialization (#499)

Author: jeroiraz

pkg/store/set.go

@@ -41,7 +41,7 @@ func Float642bytes(float float64) []byte {
 
 // Bytes2float ...
 func Bytes2float(bytes []byte) float64 {
-	bits := binary.LittleEndian.Uint64(bytes)
+	bits := binary.BigEndian.Uint64(bytes)
 	float := math.Float64frombits(bits)
 	return float
 }

pkg/store/set_test.go

@@ -17,9 +17,12 @@ limitations under the License.
 package store
 
 import (
+	"math/rand"
+	"testing"
+	"time"
+
 	"github.com/codenotary/immudb/pkg/api/schema"
 	"github.com/stretchr/testify/assert"
-	"testing"
 )
 
 func TestStoreIndexExists(t *testing.T) {
@@ -92,3 +95,17 @@ func TestStoreIndexExists(t *testing.T) {
 	assert.Equal(t, []byte(`myThirdElementKey`), itemList2.Items[1].Key)
 	assert.Equal(t, []byte(`mySecondElementKey`), itemList2.Items[2].Key)
 }
+
+func TestFloat(t *testing.T) {
+	s := rand.NewSource(time.Now().UnixNano())
+	r := rand.New(s)
+
+	for i := 0; i < 100; i++ {
+		n := r.Float64()
+		bs := Float642bytes(n)
+		assert.NotNil(t, bs)
+		assert.True(t, len(bs) == 8)
+		assert.Equal(t, n, Bytes2float(bs))
+	}
+
+}