Fix new stream from camera entity from Hass

cmd/streams/stream_test.go

@@ -0,0 +1,19 @@
+package streams
+
+import (
+	"github.com/stretchr/testify/require"
+	"testing"
+)
+
+func TestTemplate(t *testing.T) {
+	source1 := "does not matter"
+
+	stream1 := New("from_yaml", source1)
+	require.Len(t, streams, 1)
+
+	stream2 := NewTemplate("camera.from_hass", "rtsp://localhost:8554/from_yaml?video")
+
+	require.Equal(t, stream1, stream2)
+	require.Equal(t, stream2.producers[0].url, source1)
+	require.Len(t, streams, 2)
+}