def test_assert_screenshot_element_and_save_baseline(self):
# Create element mock
web_element = get_mock_element(x=250, y=40, height=40, width=300)
# Configure driver mock
with open(self.file_v1, "rb") as f:
image_data = f.read()
self.driver_wrapper.driver.get_screenshot_as_png.return_value = image_data
# Assert screenshot
self.visual.assert_screenshot(web_element,
filename='screenshot_elem',
file_suffix='screenshot_suffix')
self.driver_wrapper.driver.get_screenshot_as_png.assert_called_once_with(
)
# Check cropped image
expected_image = os.path.join(self.root_path, 'resources',
'register_cropped_element.png')
output_file = os.path.join(
self.visual.output_directory,
'01_screenshot_elem__screenshot_suffix.png')
PilEngine().assertSameFiles(output_file, expected_image, 0.1)
# Output image and new baseline image must be equals
baseline_file = os.path.join(self.root_path, 'output', 'visualtests',
'baseline', 'firefox',
'screenshot_elem.png')
PilEngine().assertSameFiles(output_file, baseline_file, 0.1)
def __init__(self, driver_wrapper=None, force=False):
self.driver_wrapper = driver_wrapper if driver_wrapper else DriverWrappersPool.get_default_wrapper(
)
self.force = force
if not self.driver_wrapper.config.getboolean_optional(
'VisualTests', 'enabled') and not self.force:
return
if 'PerceptualEngine' not in globals():
raise Exception(
'The visual tests are enabled, but needle is not installed')
self.utils = self.driver_wrapper.utils
self.logger = logging.getLogger(__name__)
self.output_directory = DriverWrappersPool.visual_output_directory
# Update baseline with real platformVersion value
if '{platformVersion}' in self.driver_wrapper.baseline_name:
platform_version = self.driver_wrapper.driver.desired_capabilities[
'platformVersion']
baseline_name = self.driver_wrapper.baseline_name.replace(
'{platformVersion}', platform_version)
self.driver_wrapper.baseline_name = baseline_name
self.driver_wrapper.visual_baseline_directory = os.path.join(
DriverWrappersPool.output_directory, 'visualtests', 'baseline',
baseline_name)
self.baseline_directory = self.driver_wrapper.visual_baseline_directory
engine_type = self.driver_wrapper.config.get_optional(
'VisualTests', 'engine', 'pil')
if engine_type == 'perceptualdiff':
self.engine = PerceptualEngine()
# elif engine_type == 'imagemagick':
# self.engine = MagickEngine()
elif engine_type == 'pil':
self.engine = PilEngine()
else:
self.logger.warn(
"Engine '{}' not found, using pil instead. Review your properties.cfg file."
.format(engine_type))
self.engine = PilEngine()
self.save_baseline = self.driver_wrapper.config.getboolean_optional(
'VisualTests', 'save')
# Create folders
if not os.path.exists(self.baseline_directory):
os.makedirs(self.baseline_directory)
if not os.path.exists(self.output_directory):
os.makedirs(self.output_directory)
# Copy html template to output directory
orig_template_path = os.path.join(
os.path.dirname(os.path.realpath(__file__)), 'resources',
self.template_name)
dst_template_path = os.path.join(self.output_directory,
self.report_name)
if not os.path.exists(dst_template_path):
shutil.copyfile(orig_template_path, dst_template_path)
self._add_summary_to_report()
def test_assert_screenshot_mobile_web_resize_and_exclude(self):
# Create elements mock
form_element = get_mock_element(x=0, y=0, height=559, width=375)
exclude_elements = [
get_mock_element(x=15, y=296.515625, height=32, width=345)
]
# Configure driver mock
file_ios_web = os.path.join(self.root_path, 'resources', 'ios_web.png')
with open(file_ios_web, "rb") as f:
image_data = f.read()
self.driver_wrapper.driver.get_screenshot_as_png.return_value = image_data
self.driver_wrapper.driver.get_window_size.return_value = {
'width': 375,
'height': 667
}
# Update conf and create a new VisualTest instance
self.driver_wrapper.config.set('Driver', 'type', 'ios')
self.driver_wrapper.config.set('AppiumCapabilities', 'browserName',
'safari')
self.visual = VisualTest(self.driver_wrapper)
# Assert screenshot
self.visual.assert_screenshot(form_element,
filename='screenshot_ios_web',
file_suffix='screenshot_suffix',
exclude_elements=exclude_elements)
self.driver_wrapper.driver.get_screenshot_as_png.assert_called_once_with(
)
# Check cropped image
expected_image = os.path.join(self.root_path, 'resources',
'ios_web_exclude.png')
output_file = os.path.join(
self.visual.output_directory,
'01_screenshot_ios_web__screenshot_suffix.png')
PilEngine().assertSameFiles(output_file, expected_image, 0.1)
# Output image and new baseline image must be equals
baseline_file = os.path.join(self.root_path, 'output', 'visualtests',
'baseline', 'firefox',
'screenshot_ios_web.png')
PilEngine().assertSameFiles(output_file, baseline_file, 0.1)
def _get_engine(self):
"""Get configured or default visual engine
:returns: engine instance
"""
engine_type = self.driver_wrapper.config.get_optional('VisualTests', 'engine', 'pil')
if engine_type == 'perceptualdiff':
engine = PerceptualEngine()
elif engine_type == 'imagemagick' and 'MagickEngine' not in globals():
self.logger.warning("Engine '%s' not found, using pil instead. You need needle 0.4+ to use this engine.",
engine_type)
engine = PilEngine()
elif engine_type == 'imagemagick':
engine = MagickEngine()
elif engine_type == 'pil':
engine = PilEngine()
else:
self.logger.warning("Engine '%s' not found, using pil instead. Review your properties.cfg file.",
engine_type)
engine = PilEngine()
return engine
def compare_image_files(image, expected_image, threshold=0.1):
"""Compare two images
:param image: file path image to compare
:param expected_image: expected image
:param threshold: allowed threshold
"""
# Pil needs a pixel number threshold instead of a percentage threshold
img = Image.open(expected_image)
width, height = img.size
threshold = int(width * height * threshold)
PilEngine().assertSameFiles(image, expected_image, threshold)
def assert_image(self, img, img_name, expected_image_filename):
"""Save img in an image file and compare with the expected image
:param img: image object
:param img_name: temporary filename
:param expected_image_filename: filename of the expected image
"""
# Save result image in output folder
result_file = os.path.join(self.visual.output_directory,
img_name + '.png')
img.save(result_file)
# Output image and expected image must be equals
expected_image = os.path.join(self.root_path, 'resources',
expected_image_filename + '.png')
PilEngine().assertSameFiles(result_file, expected_image, 0.1)
def test_assert_screenshot_full_and_save_baseline(self):
# Configure driver mock
def copy_file_side_effect(output_file):
shutil.copyfile(self.file_v1, output_file)
self.driver_wrapper.driver.save_screenshot.side_effect = copy_file_side_effect
# Assert screenshot
self.visual.assert_screenshot(None,
filename='screenshot_full',
file_suffix='screenshot_suffix')
output_file = os.path.join(
self.visual.output_directory,
'01_screenshot_full__screenshot_suffix.png')
self.driver_wrapper.driver.save_screenshot.assert_called_once_with(
output_file)
# Output image and new baseline image must be equals
baseline_file = os.path.join(self.root_path, 'output', 'visualtests',
'baseline', 'firefox',
'screenshot_full.png')
PilEngine().assertSameFiles(output_file, baseline_file, 0.1)
