ReadFrames no params validation added

video.go

@@ -309,6 +309,10 @@ func (video *Video) ReadFrame(n int) error {
 // Read the N-amount of frames with the given indexes and return them as a slice of buffers. If one of
 // the indexes is out of range, the function will return an error. The frames are indexes from 0.
 func (video *Video) ReadFrames(n ...int) ([][]byte, error) {
+	if len(n) == 0 {
+		return nil, fmt.Errorf("vidio: no frames indexes specified")
+	}
+
 	for _, nValue := range n {
 		if nValue >= video.frames {
 			return nil, fmt.Errorf("vidio: provided frame index %d is not in frame count range", nValue)

vidio_test.go

@@ -341,6 +341,20 @@ func TestReadFrameShouldReturnCorrectFrame(t *testing.T) {
 	}
 }
 
+func TestReadFramesShouldReturnErrorOnNoFramesSpecified(t *testing.T) {
+	path := "test/koala.mp4"
+
+	video, err := NewVideo(path)
+	if err != nil {
+		t.Errorf("Failed to create the video: %s", err)
+	}
+
+	_, err = video.ReadFrames()
+	if err == nil {
+		t.Error("Error was expected to no be nil")
+	}
+}
+
 func TestReadFramesShouldReturnErrorOnOutOfRangeFrame(t *testing.T) {
 	path := "test/koala.mp4"