def test_line_exceeds_width_and_height_multiple(self):
"""Should return an errors indicating which lines are too big."""
base_image = Images._create_blank_image(50, 100, 'white')
text = ['This text is too big', 'and so is this']
settings = {'text_label_font_name': 'arialbd.ttf',
'text_label_font_size': 64,
'text_label_font_color': 'red'}
font_kwargs = ImageSettings._get_font_kwargs(
settings=settings, label_or_hint='label')
image_log = logging.getLogger('odk_tools.question_images.images')
with self.assertLogs(logger=image_log, level="WARN") as logs:
Images._draw_text(
base_image=base_image, pixels_from_top=0, pixels_before=10,
pixels_between=5, **font_kwargs, text=text, image_name="img")
expected = 3
self.assertEqual(expected, len(logs.output))
def test_line_exceeds_height(self):
"""Should return an error indicating the line that was too tall."""
base_image = Images._create_blank_image(200, 100, 'white')
text = ['Big', 'Text']
settings = {'text_label_font_name': 'arialbd.ttf',
'text_label_font_size': 64,
'text_label_font_color': 'red'}
font_kwargs = ImageSettings._get_font_kwargs(
settings=settings, label_or_hint='label')
image_log = logging.getLogger('odk_tools.question_images.images')
with self.assertLogs(logger=image_log, level="WARN") as logs:
Images._draw_text(
base_image=base_image, pixels_from_top=0, pixels_before=10,
pixels_between=5, **font_kwargs, text=text, image_name="img")
expected = "WARNING:odk_tools.question_images.images:" \
"Text outside image margins. image name (img)," \
" dim (height), pos (59), text ({0})".format(text[1])
self.assertEqual(expected, logs.output[0])
def test_line_exceeds_width_and_height(self):
"""Should return an errors indicating the line is too wide and tall."""
base_image = Images._create_blank_image(50, 50, 'white')
text = ['This is too big']
settings = {'text_label_font_name': 'arialbd.ttf',
'text_label_font_size': 64,
'text_label_font_color': 'red'}
font_kwargs = ImageSettings._get_font_kwargs(
settings=settings, label_or_hint='label')
image_log = logging.getLogger('odk_tools.question_images.images')
with self.assertLogs(logger=image_log, level="WARN") as logs:
Images._draw_text(
base_image=base_image, pixels_from_top=0, pixels_before=10,
pixels_between=5, **font_kwargs, text=text, image_name="img")
self.assertEqual(2, len(logs.output))
expected_width = "dim (width), pos (436), text ({0})".format(text[0])
self.assertTrue(logs.output[0].endswith(expected_width))
expected_height = "dim (height), pos (72), text ({0})".format(text[0])
self.assertTrue(logs.output[1].endswith(expected_height))
def test_ideal_input(self):
"""Should return a modified image with expected offset and no errors."""
settings = ImageSettings.read(xlsform_workbook=self.xlsform1_workbook)
settings = settings[2]
base_image = Images._create_blank_image(
settings['image_width'], settings['image_height'],
settings['image_color'])
original_image = base_image.copy()
text = ['This is some text', 'that is for a question']
font_kwargs = ImageSettings._get_font_kwargs(
settings=settings, label_or_hint='label')
with patch('logging.Logger.warn', MagicMock()) as log_warn:
drawn_image, vertical = Images._draw_text(
base_image=base_image, pixels_from_top=0, pixels_before=10,
pixels_between=5, **font_kwargs, text=text, image_name='img')
self.assertFalse(log_warn.called)
self.assertNotEqual(list(original_image.getdata()),
list(drawn_image.getdata()))
self.assertEqual(79, vertical)