init with test

probe_test.go

@@ -0,0 +1,20 @@
+package ffmpeg_go
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/tidwall/gjson"
+)
+
+const (
+	TestInputFile1  = "./sample_data/in1.mp4"
+	TestOutputFile1 = "./sample_data/out1.mp4"
+	TestOverlayFile = "./sample_data/overlay.png"
+)
+
+func TestProbe(t *testing.T) {
+	data, err := Probe(TestInputFile1, nil)
+	assert.Nil(t, err)
+	assert.Equal(t, gjson.Get(data, "format.duration").String(), "7.036000")
+}