diff --git a/test/filetypes.js b/test/filetypes.js
new file mode 100644
index 000000000..41f2da88a
--- /dev/null
+++ b/test/filetypes.js
@@ -0,0 +1,11 @@
+var Jimp = require("../jimp.js");
+
+var lenna = new Jimp("lenna.png", function(err, image) {
+    this.quality(1).write("./output/lenna-copy.jpg", loadJPEG); // JPEG copy
+});
+
+function loadJPEG(){
+    var jpg = new Jimp("./output/lenna-copy.jpg", function(err, image) {
+        jpg.invert().write("./output/lenna-invert.png");
+    });
+}
\ No newline at end of file