def setUpClass(cls):
super().setUpClass()
cls.ref_images = os.path.join(cls.cwd, "reference_images")
cls.ref_image_all = Images._open_image(
image_path=os.path.join(
cls.ref_images, "da2d10ye_english_all.png"))
cls.ref_image_label = Images._open_image(
image_path=os.path.join(
cls.ref_images, "da2d10ye_english_label.png"))
cls.ref_image_label_hint = Images._open_image(
image_path=os.path.join(
cls.ref_images, "da2d10ye_english_label_hint.png"))
cls.ref_image_label_image = Images._open_image(
image_path=os.path.join(
cls.ref_images, "da2d10ye_english_label_image.png"))
cls.template = ImageSettings.read(
xlsform_workbook=cls.xlsform1_workbook)
def test_image_diff_method_for_almost_identical_images(self):
"""Should pass for identical images."""
ref_image1 = self.ref_image_all
ref_image2 = Images._open_image(image_path=os.path.join(
self.ref_images, "da2d10ye_english_all_almost_identical.png"))
diff_image = ImageChops.difference(ref_image1, ref_image2)
pixel_count, diff_dict = self.quantify_image_difference(diff_image)
self.assertTrue(diff_dict["tiny"] <= pixel_count * 0.01, diff_dict)
self.assertTrue(diff_dict["minor"] <= pixel_count * 0.001, diff_dict)
self.assertTrue(diff_dict["large"] == 0, diff_dict)
def test_prepare_base_image_with_logo(self):
"""Should return a base image with a logo pasted onto it."""
logo = os.path.join(self.cwd, 'nest_images/stopc-logo.png')
settings = {'image_width': 500, 'image_height': 500,
'image_color': 'white',
'logo_image_path': logo,
'logo_image_pixels_before': 10,
'logo_image_height': 40}
observed, _ = Images._prepare_base_image(settings=settings,
xlsform_path="")
base_logo = os.path.join(self.cwd, 'reference_images', 'base_logo.png')
expected = Images._open_image(image_path=base_logo)
self.assertEqual(list(expected.getdata()), list(observed.getdata()))
expected.close()
