def test_render_image():
width, height = barcode_size(codes)
image = render_image(codes)
assert isinstance(image, Image)
image = render_image(codes, scale=1, ratio=1, padding=0)
assert image.size == (width, height)
image = render_image(codes, scale=2, ratio=1, padding=0)
assert image.size == (2 * width, 2 * height)
image = render_image(codes, scale=2, ratio=2, padding=0)
assert image.size == (2 * width, 4 * height)
image = render_image(codes, scale=2, ratio=2, padding=20)
assert image.size == (2 * width + 40, 4 * height + 40)
# Check actual pixels
fg_color = "LemonChiffon"
bg_color = "#aabbcc"
fg_parsed = (255, 250, 205)
bg_parsed = (170, 187, 204)
image = render_image(codes, scale=1, ratio=1, padding=0,
fg_color=fg_color, bg_color=bg_color)
px = image.load()
for column, row, visible in modules(codes):
expected = fg_parsed if visible else bg_parsed
assert px[column, row] == expected
def test_render_svg():
scale = 2
ratio = 4
description = "hi there"
padding = 5
tree = render_svg(codes,
scale=scale,
ratio=ratio,
description=description,
padding=padding)
assert isinstance(tree, ElementTree)
assert tree.findtext("description") == description
# Test expected size
width, height = barcode_size(codes)
root = tree.getroot()
assert root.get("width") == str(width * scale + 2 * padding)
assert root.get("height") == str(height * scale * ratio + 2 * padding)
assert root.get("version") == "1.1"
assert root.get("xmlns") == "http://www.w3.org/2000/svg"
# Check number of rendered modules (only visible ones)
expected_module_count = len([v for x, y, v in modules(codes) if v])
actual_module_count = len(root.findall('g/rect'))
assert expected_module_count == actual_module_count
def test_render_svg():
scale = 2
ratio = 4
description = "hi there"
tree = render_svg(codes, scale=scale, ratio=ratio, description=description)
assert isinstance(tree, ElementTree)
assert tree.findtext("description") == description
# Test expected size
width, height = barcode_size(codes)
root = tree.getroot()
assert root.get("width") == str(width * scale)
assert root.get("height") == str(height * scale * ratio)
assert root.get("version") == "1.1"
assert root.get("xmlns") == "http://www.w3.org/2000/svg"
# Check number of rendered modules (only visible ones)
expected_module_count = len([v for x, y, v in modules(codes) if v])
actual_module_count = len(root.findall('g/rect'))
assert expected_module_count == actual_module_count
def test_render_image():
width, height = barcode_size(codes)
image = render_image(codes)
assert isinstance(image, Image)
image = render_image(codes, scale=1, ratio=1, padding=0)
assert image.size == (width, height)
image = render_image(codes, scale=2, ratio=1, padding=0)
assert image.size == (2 * width, 2 * height)
image = render_image(codes, scale=2, ratio=2, padding=0)
assert image.size == (2 * width, 4 * height)
image = render_image(codes, scale=2, ratio=2, padding=20)
assert image.size == (2 * width + 40, 4 * height + 40)
# Check actual pixels
fg_color = "LemonChiffon"
bg_color = "#aabbcc"
fg_parsed = (255, 250, 205)
bg_parsed = (170, 187, 204)
image = render_image(codes,
scale=1,
ratio=1,
padding=0,
fg_color=fg_color,
bg_color=bg_color)
px = image.load()
for column, row, visible in modules(codes):
expected = fg_parsed if visible else bg_parsed
assert px[column, row] == expected