def assert_equal(self):
__tracebackhide__ = True
self.end()
self.different_pixels = 0
actual_image: QImage = self.actual.device().toImage()
expected_image: QImage = self.expected.device().toImage()
diff_pixmap = QPixmap(actual_image.width(), actual_image.height())
diff = QPainter(diff_pixmap)
try:
white = QColor('white')
diff.fillRect(0, 0, actual_image.width(), actual_image.height(),
white)
for x in range(actual_image.width()):
for y in range(actual_image.height()):
actual_colour = actual_image.pixelColor(x, y)
expected_colour = expected_image.pixelColor(x, y)
diff.setPen(
self.diff_colour(actual_colour, expected_colour, x, y))
diff.drawPoint(x, y)
finally:
diff.end()
diff_image: QImage = diff.device().toImage()
display_diff(actual_image, diff_image, expected_image,
self.different_pixels)
if self.different_pixels == 0:
return
actual_image.save(str(self.work_dir / (self.name + '_actual.png')))
expected_image.save(str(self.work_dir / (self.name + '_expected.png')))
diff_path = self.work_dir / (self.name + '_diff.png')
is_saved = diff_image.save(str(diff_path))
diff_width = self.diff_max_x - self.diff_min_x + 1
diff_height = self.diff_max_y - self.diff_min_y + 1
diff_section = QImage(diff_width, diff_height, QImage.Format_RGB32)
diff_section_painter = QPainter(diff_section)
try:
diff_section_painter.drawPixmap(0, 0, diff_width, diff_height,
QPixmap.fromImage(diff_image),
self.diff_min_x, self.diff_min_y,
diff_width, diff_height)
finally:
diff_section_painter.end()
# To see an image dumped in the Travis CI log, copy the text from the
# log, and paste it in test_pixmap_differ.test_decode_image.
print(f'Encoded image of differing section '
f'({self.diff_min_x}, {self.diff_min_y}) - '
f'({self.diff_max_x}, {self.diff_max_y}):')
print(encode_image(diff_section))
message = f'Found {self.different_pixels} different pixels, '
message += f'see' if is_saved else 'could not write'
message += f' {diff_path.relative_to(Path(__file__).parent.parent)}.'
assert self.different_pixels == 0, message
def assert_equal(self):
__tracebackhide__ = True
self.end()
self.different_pixels = 0
actual_image: QImage = self.actual.device().toImage()
expected_image: QImage = self.expected.device().toImage()
diff_pixmap = QPixmap(actual_image.width(), actual_image.height())
diff = QPainter(diff_pixmap)
try:
white = QColor('white')
diff.fillRect(0, 0, actual_image.width(), actual_image.height(),
white)
for x in range(actual_image.width()):
for y in range(actual_image.height()):
actual_colour = actual_image.pixelColor(x, y)
expected_colour = expected_image.pixelColor(x, y)
diff.setPen(
self.diff_colour(actual_colour, expected_colour, x, y))
diff.drawPoint(x, y)
finally:
diff.end()
diff_image: QImage = diff.device().toImage()
display_diff(actual_image, diff_image, expected_image,
self.different_pixels)
if self.different_pixels == 0:
return
actual_image.save(str(self.work_dir / (self.name + '_actual.png')))
expected_image.save(str(self.work_dir / (self.name + '_expected.png')))
diff_path = self.work_dir / (self.name + '_diff.png')
is_saved = diff_image.save(str(diff_path))
diff_width = self.diff_max_x - self.diff_min_x + 1
diff_height = self.diff_max_y - self.diff_min_y + 1
diff_section = QImage(diff_width, diff_height, QImage.Format_RGB32)
diff_section_painter = QPainter(diff_section)
try:
diff_section_painter.drawPixmap(0, 0, diff_width, diff_height,
QPixmap.fromImage(diff_image),
self.diff_min_x, self.diff_min_y,
diff_width, diff_height)
finally:
diff_section_painter.end()
message = f'Found {self.different_pixels} different pixels.'
assert self.different_pixels == 0, message