Exemple #1
0
func (t *TestSuite) TestResourceManager() {

	request := mandala.LoadResourceRequest{
		Filename: "drawable/gopher.png",
		Response: make(chan mandala.LoadResourceResponse),
	}

	mandala.ResourceManager() <- request

	response := <-request.Response
	buffer := response.Buffer

	t.True(response.Error == nil, "An error occured during resource opening")

	_, err := png.Decode(bytes.NewBuffer(buffer))
	t.True(err == nil, "An error occured during png decoding")

	// Load a non existent resource
	request = mandala.LoadResourceRequest{
		Filename: "res/doesntexist",
		Response: make(chan mandala.LoadResourceResponse),
	}

	mandala.ResourceManager() <- request

	response = <-request.Response
	buffer = response.Buffer

	t.True(buffer == nil)
	t.True(response.Error != nil)

	// Use the helper API for loading resources
	responseCh := make(chan mandala.LoadResourceResponse)
	mandala.ReadResource("drawable/gopher.png", responseCh)
	response = <-responseCh

	buffer = response.Buffer
	t.True(buffer != nil)
	t.True(response.Error == nil, "An error occured during resource opening")

	_, err = png.Decode(bytes.NewBuffer(buffer))
	t.True(err == nil, "An error occured during png decoding")
}
Exemple #2
0
// TestImage compares a saved expected image of a given filename with
// an actual image.Image that typically contains the result of a
// rendering. It returns the distance value and the two compared
// images.
func TestImage(filename string, act image.Image, adjust imagetest.Adjuster) (float64, image.Image, image.Image, error) {
	request := mandala.LoadResourceRequest{
		Filename: filepath.Join(expectedImgPath, filename),
		Response: make(chan mandala.LoadResourceResponse),
	}

	mandala.ResourceManager() <- request
	response := <-request.Response
	buffer := response.Buffer

	if response.Error != nil {
		return 1, nil, nil, response.Error
	}

	exp, err := png.Decode(bytes.NewBuffer(buffer))
	if err != nil {
		return 1, nil, nil, err
	}
	return imagetest.CompareDistance(exp, act, adjust), exp, act, nil
}
Exemple #3
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func (t *TestSuite) TestDraw() {
	request := mandala.LoadResourceRequest{
		Filename: "drawable/expected.png",
		Response: make(chan mandala.LoadResourceResponse),
	}

	mandala.ResourceManager() <- request
	response := <-request.Response
	buffer := response.Buffer

	t.True(response.Error == nil, "An error occured during resource opening")

	if buffer != nil {
		exp, err := png.Decode(bytes.NewBuffer(buffer))
		t.True(err == nil, "An error occured during png decoding")

		distance := imagetest.CompareDistance(exp, <-t.testDraw, nil)
		t.True(distance < 0.1, fmt.Sprintf("Distance is %f", distance))
	}
}
Exemple #4
0
// loadImageResource loads an image with the given filename from the
// resource folder.
func loadImageResource(filename string) (image.Image, error) {
	request := mandala.LoadResourceRequest{
		Filename: filepath.Join(expectedImgPath, filename),
		Response: make(chan mandala.LoadResourceResponse),
	}

	mandala.ResourceManager() <- request
	response := <-request.Response

	buffer := response.Buffer
	if response.Error != nil {
		return nil, response.Error
	}

	img, err := png.Decode(bytes.NewReader(buffer))

	if err != nil {
		return nil, err
	}

	return img, nil
}
Exemple #5
0
func loadImage(filename string) (image.Image, error) {
	// Request an asset to the resource manager. When the app runs
	// on an Android device, the apk will be unpacked and the file
	// will be read from it and copied to a byte buffer.
	request := mandala.LoadResourceRequest{
		filename,
		make(chan mandala.LoadResourceResponse),
	}
	mandala.ResourceManager() <- request
	response := <-request.Response

	if response.Error != nil {
		return nil, response.Error
	}

	// Decode the image.
	img, err := png.Decode(bytes.NewBuffer(response.Buffer))
	if err != nil {
		return nil, err
	}
	return img, nil
}