tests for openImageFromPath helper

examples/stego_test.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"image"
+	"log"
+	"testing"
+)
+
+var rawInputFile = "./stegosaurus.png"
+var encodedInputFile = "./encoded_stegosaurus.png"
+
+func TestOpenImageFromPath(t *testing.T) {
+	img, err := OpenImageFromPath(rawInputFile)
+	if err != nil {
+		log.Printf("Error opening or Decoding file %s: %v", rawInputFile, err)
+		t.FailNow()
+	}
+	if (img.Bounds().Bounds() != image.Rectangle{image.Point{0, 0}, image.Point{1195, 642}}) {
+		log.Printf("Image has wrong size")
+		t.FailNow()
+
+	}
+}
+
+func TestEmptyPathHelperFunction(t *testing.T) {
+	_, err := OpenImageFromPath(" ")
+	if err == nil {
+		log.Print("Empty path given, err could not be nil.")
+		t.FailNow()
+	}
+}