""" weasyprint.tests.layout.image ----------------------------- Tests for image layout. :copyright: Copyright 2011-2019 Simon Sapin and contributors, see AUTHORS. :license: BSD, see LICENSE for details. """ import pytest from ...formatting_structure import boxes from ..test_boxes import render_pages as parse from ..testing_utils import assert_no_logs, capture_logs, requires def get_img(html): page, = parse(html) html, = page.children body, = html.children line, = body.children img, = line.children return body, img @assert_no_logs def test_images_1(): # Try a few image formats for html in [ '' % url for url in [ 'pattern.png', 'pattern.gif', 'blue.jpg', 'pattern.svg', "data:image/svg+xml,", "DatA:image/svg+xml,", ] ] + [ '', '', '', '', '', '', '', '', ]: body, img = get_img(html) assert img.width == 4 assert img.height == 4 @assert_no_logs def test_images_2(): # With physical units url = "data:image/svg+xml," body, img = get_img('' % url) assert img.width == 96 assert img.height == 48 @requires('cairo', (1, 15, 12)) @assert_no_logs def test_images_3(): # Invalid images for url in [ 'nonexistent.png', 'unknownprotocol://weasyprint.org/foo.png', 'data:image/unknowntype,Not an image', # Invalid protocol 'datå:image/svg+xml,', # zero-byte images 'data:image/png,', 'data:image/jpeg,', 'data:image/svg+xml,', # Incorrect format 'data:image/png,Not a PNG', 'data:image/jpeg,Not a JPEG', 'data:image/svg+xml,invalid xml', # Explicit SVG, no sniffing 'data:image/svg+xml;base64,' 'R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=', 'really-a-png.svg', ]: with capture_logs() as logs: body, img = get_img("invalid image" % url) assert len(logs) == 1 assert 'ERROR: Failed to load image' in logs[0] assert isinstance(img, boxes.InlineBox) # not a replaced box text, = img.children assert text.text == 'invalid image', url @requires('cairo', (1, 15, 12)) @assert_no_logs def test_images_4(): # Format sniffing for url in [ # GIF with JPEG mimetype 'data:image/jpeg;base64,' 'R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=', # GIF with PNG mimetype 'data:image/png;base64,' 'R0lGODlhAQABAIABAP///wAAACwAAAAAAQABAAACAkQBADs=', # PNG with JPEG mimetype 'data:image/jpeg;base64,' 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC' '0lEQVR42mNkYAAAAAYAAjCB0C8AAAAASUVORK5CYII=', # SVG with PNG mimetype 'data:image/png,', 'really-a-svg.png', ]: with capture_logs() as logs: body, img = get_img("" % url) assert len(logs) == 0 @assert_no_logs def test_images_5(): with capture_logs() as logs: parse('') # Failures are cached too: only one error assert len(logs) == 1 assert 'ERROR: Failed to load image' in logs[0] @assert_no_logs def test_images_6(): # Layout rules try to preserve the ratio, so the height should be 40px too: body, img = get_img(''' ''') assert body.height == 40 assert img.position_y == 0 assert img.width == 40 assert img.height == 40 @assert_no_logs def test_images_7(): body, img = get_img(''' ''') assert body.height == 40 assert img.position_y == 0 assert img.width == 40 assert img.height == 40 @assert_no_logs def test_images_8(): # Same with percentages body, img = get_img('''

''') assert body.height == 40 assert img.position_y == 0 assert img.width == 40 assert img.height == 40 @assert_no_logs def test_images_9(): body, img = get_img(''' ''') assert body.height == 40 assert img.position_y == 0 assert img.width == 40 assert img.height == 40 @assert_no_logs def test_images_10(): body, img = get_img('') assert img.width == 2 assert img.height == 2 @assert_no_logs def test_images_11(): # display: table-cell is ignored. XXX Should it? page, = parse(''' ''') html, = page.children body, = html.children line, = body.children img_1, img_2 = line.children assert body.height == 60 assert img_1.width == 40 assert img_1.height == 40 assert img_2.width == 60 assert img_2.height == 60 assert img_1.position_y == 20 assert img_2.position_y == 0 @assert_no_logs def test_images_12(): # Block-level image: page, = parse(''' ''') html, = page.children body, = html.children img, = body.children assert img.element_tag == 'img' assert img.position_x == 0 assert img.position_y == 0 assert img.width == 40 assert img.height == 40 assert img.content_box_x() == 30 # (100 - 40) / 2 == 30px for margin-left assert img.content_box_y() == 10 @assert_no_logs def test_images_13(): page, = parse(''' ''') html, = page.children body, = html.children img, = body.children assert img.element_tag == 'img' assert img.position_x == 0 assert img.position_y == 0 assert img.width == 40 assert img.height == 40 assert img.content_box_x() == 30 # (100 - 40) / 2 == 30px for margin-left assert img.content_box_y() == 10 @assert_no_logs def test_images_14(): page, = parse(''' ''') html, = page.children body, = html.children img, = body.children assert img.element_tag == 'img' assert img.position_x == 0 assert img.position_y == 0 assert img.width == 40 assert img.height == 40 assert img.content_box_x() == 30 # (100 - 40) / 2 == 30px for margin-left assert img.content_box_y() == 10 @assert_no_logs def test_images_15(): page, = parse(''' ''') html, = page.children body, = html.children img, = body.children assert img.element_tag == 'img' assert img.position_x == 0 assert img.position_y == 0 assert img.width == 2 assert img.height == 30 assert img.content_box_x() == 49 # (100 - 2) / 2 == 49px for margin-left assert img.content_box_y() == 10 @assert_no_logs def test_images_16(): page, = parse(''' ''') html, = page.children body, = html.children img, = body.children assert body.width == 320 assert body.height == 220 assert img.element_tag == 'img' assert img.width == 300 assert img.height == 200 @assert_no_logs def test_images_17(): page, = parse('''

''') html, = page.children body, = html.children div, = body.children line, = div.children img, = line.children assert div.width == 300 assert div.height == 300 assert img.element_tag == 'img' assert img.width == 300 assert img.height == 150 @assert_no_logs def test_linear_gradient(): red = (1, 0, 0, 1) lime = (0, 1, 0, 1) blue = (0, 0, 1, 1) def layout(gradient_css, type_='linear', init=(), positions=[0, 1], colors=[blue, lime], scale=(1, 1)): page, = parse('