fix error and add tests

internal/protocols/rtmp/amf0/unmarshal.go

@@ -219,7 +219,7 @@ func unmarshal(buf []byte) (interface{}, []byte, error) {
 		date := math.Float64frombits(uint64(buf[0])<<56 | uint64(buf[1])<<48 | uint64(buf[2])<<40 | uint64(buf[3])<<32 |
 			uint64(buf[4])<<24 | uint64(buf[5])<<16 | uint64(buf[6])<<8 | uint64(buf[7]))
 		buf = buf[8:]
-		//timeZone := uint16(buf[0])<<8 | uint16(buf[1])
+		// timeZone := uint16(buf[0])<<8 | uint16(buf[1])
 		buf = buf[2:] // skip timeZone
 		return date, buf, nil
 	default:

internal/protocols/rtmp/amf0/unmarshal_test.go

@@ -311,3 +311,40 @@ func FuzzUnmarshal(f *testing.F) {
 		Unmarshal(b) //nolint:errcheck
 	})
 }
+
+func TestStrictArray(t *testing.T) {
+	data := []byte{
+		0x0a, 0x00, 0x00, 0x00, 0x02, 0x02, 0x00, 0x06,
+		0x72, 0x61, 0x6e, 0x64, 0x6f, 0x6d, 0x00, 0x40,
+		0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	}
+	t.Run("strictArray", func(t *testing.T) {
+		dec, err := Unmarshal(data)
+		require.NoError(t, err)
+		require.Equal(t, []interface{}{nil}, dec)
+	})
+}
+
+func TestLongString(t *testing.T) {
+	data := []byte{
+		0x0c, 0x00, 0x00, 0x00, 0x06, 0x72, 0x61, 0x6e, 0x64,
+		0x6f, 0x6d,
+	}
+	t.Run("longString", func(t *testing.T) {
+		dec, err := Unmarshal(data)
+		require.NoError(t, err)
+		require.Equal(t, []interface{}{"random"}, dec)
+	})
+}
+
+func TestDate(t *testing.T) {
+	data := []byte{
+		0x0b, 0x40, 0xa3, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00,
+		0x00, 0x00,
+	}
+	t.Run("date", func(t *testing.T) {
+		dec, err := Unmarshal(data)
+		require.NoError(t, err)
+		require.Equal(t, []interface{}{float64(2500)}, dec)
+	})
+}