def test_doesnt_alter_input_paste_image(self):
"""Resizing should be done on a copy, not the original."""
base_image = Images._create_blank_image(500, 500, 'red')
paste_image = Images._create_blank_image(600, 600, 'blue')
expected = (600, 600)
Images._paste_image(
base_image=base_image, pixels_from_top=20,
paste_image=paste_image, pixels_before=20, max_height=50)
observed = paste_image.size
self.assertEqual(expected, observed)
def test_shrink_square_to_available(self):
"""Should resize to width."""
pixels_from_top = 0
base_image = Images._create_blank_image(500, 500, 'red')
paste_image = Images._create_blank_image(600, 600, 'blue')
pixels_before = 5
expected = 485
base_image, observed = Images._paste_image(
base_image=base_image, pixels_from_top=pixels_from_top,
paste_image=paste_image, pixels_before=pixels_before,
max_height=None)
self.assertEqual(expected, observed)
def test_shrink_square_to_available_with_y_offset(self):
"""Should resize to fit available space."""
base_image = Images._create_blank_image(500, 500, 'red')
pixels_from_top = 50
paste_image = Images._create_blank_image(600, 600, 'blue')
pixels_before = 5
expected = 490
base_image, observed = Images._paste_image(
base_image=base_image, pixels_from_top=pixels_from_top,
paste_image=paste_image, pixels_before=pixels_before,
max_height=None)
self.assertEqual(expected, observed)
def test_shrink_tall_to_max_height_with_y_offset(self):
"""Should resize to max_height."""
base_image = Images._create_blank_image(500, 500, 'red')
pixels_from_top = 100
paste_image = Images._create_blank_image(750, 600, 'blue')
pixels_before = 5
max_height = 250
expected = 355
base_image, observed = Images._paste_image(
base_image=base_image, pixels_from_top=pixels_from_top,
paste_image=paste_image, pixels_before=pixels_before,
max_height=max_height)
self.assertEqual(expected, observed)
