예제 #1
0
func TestImageHandler(t *testing.T) {
	client, proxy, l := oneShotProxy(t)
	defer l.Close()

	football := getImage("test_data/football.png", t)

	proxy.OnResponse(goproxy.UrlIs("/test_data/panda.png")).Do(goproxy_image.HandleImage(func(img image.Image, ctx *goproxy.ProxyCtx) image.Image {
		return football
	}))

	resp, err := client.Get(localFile("test_data/panda.png"))
	if err != nil {
		t.Fatal("Cannot get panda.png", err)
	}

	img, _, err := image.Decode(resp.Body)
	if err != nil {
		t.Error("decode", err)
	} else {
		compareImage(football, img, t)
	}

	// and again
	resp, err = client.Get(localFile("test_data/panda.png"))
	if err != nil {
		t.Fatal("Cannot get panda.png", err)
	}

	img, _, err = image.Decode(resp.Body)
	if err != nil {
		t.Error("decode", err)
	} else {
		compareImage(football, img, t)
	}
}
예제 #2
0
func getImage(file string, t *testing.T) image.Image {
	newimage, err := ioutil.ReadFile(file)
	if err != nil {
		t.Fatal("Cannot read file", file, err)
	}
	img, _, err := image.Decode(bytes.NewReader(newimage))
	if err != nil {
		t.Fatal("Cannot decode image", file, err)
	}
	return img
}
예제 #3
0
func TestReplaceImage(t *testing.T) {
	client, proxy, l := oneShotProxy(t)
	defer l.Close()

	panda := getImage("test_data/panda.png", t)
	football := getImage("test_data/football.png", t)

	proxy.OnResponse(goproxy.UrlIs("/test_data/panda.png")).Do(goproxy_image.HandleImage(func(img image.Image, ctx *goproxy.ProxyCtx) image.Image {
		return football
	}))
	proxy.OnResponse(goproxy.UrlIs("/test_data/football.png")).Do(goproxy_image.HandleImage(func(img image.Image, ctx *goproxy.ProxyCtx) image.Image {
		return panda
	}))

	imgByPandaReq, _, err := image.Decode(bytes.NewReader(getOrFail(localFile("test_data/panda.png"), client, t)))
	fatalOnErr(err, "decode panda", t)
	compareImage(football, imgByPandaReq, t)

	imgByFootballReq, _, err := image.Decode(bytes.NewReader(getOrFail(localFile("test_data/football.png"), client, t)))
	fatalOnErr(err, "decode football", t)
	compareImage(panda, imgByFootballReq, t)
}