matplotlib/tools/visualize_tests.py at main · QuLogic/matplotlib · GitHub

Name: matplotlib/tools/visualize_tests.py at main · QuLogic/matplotlib · GitHub
Rating: 4.4 (4722 reviews)
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#!/usr/bin/env python
#
# This builds a html page of all images from the image comparison tests
# and opens that page in the browser.
#
# $ python tools/visualize_tests.py
#

importargparse
importos
fromcollectionsimportdefaultdict

# Non-png image extensions
NON_PNG_EXTENSIONS= ['pdf', 'svg', 'eps']

html_template="""<!DOCTYPE html>
<html lang="en"><head>
<meta charset="utf-8">
<title>Matplotlib test result visualization</title>
<style media="screen">
img{{
 width:100%;
 max-width:800px;
}}
</style>
</head><body>
{failed}
{body}
</body></html>
"""

subdir_template="""<h2>{subdir}</h2><table>
<thead><tr><th>name</th><th>actual</th><th>expected</th><th>diff</th></tr></thead>
<tbody>
{rows}
</tbody>
</table>
"""

failed_template="""<h2>Only Failed</h2><table>
<thead><tr><th>name</th><th>actual</th><th>expected</th><th>diff</th></tr></thead>
<tbody>
{rows}
</tbody>
</table>
"""

row_template= ('<tr>'
'<td>{0}{1}</td>'
'<td>{2}</td>'
'<td><a href="{3}"><img src="{3}"></a></td>'
'<td>{4}</td>'
'</tr>')

linked_image_template='<a href="{0}"><img src="{0}"></a>'


defrun(show_browser=True):
"""
 Build a website for visual comparison
 """
image_dir="result_images"
_subdirs= (name
fornameinos.listdir(image_dir)
ifos.path.isdir(os.path.join(image_dir, name)))

failed_rows= []
body_sections= []
forsubdirinsorted(_subdirs):
ifsubdir=="test_compare_images":
# These are the images which test the image comparison functions.
continue

pictures=defaultdict(dict)
forfileinos.listdir(os.path.join(image_dir, subdir)):
ifos.path.isdir(os.path.join(image_dir, subdir, file)):
continue
fn, fext=os.path.splitext(file)
iffext!=".png":
continue
if"-failed-diff"infn:
file_type='diff'
test_name=fn[:-len('-failed-diff')]
elif"-expected"infn:
forextinNON_PNG_EXTENSIONS:
iffn.endswith(f'_{ext}'):
display_extension=f'_{ext}'
extension=ext
fn=fn[:-len(display_extension)]
break
else:
display_extension=''
extension='png'
file_type='expected'
test_name=fn[:-len('-expected')] +display_extension
else:
file_type='actual'
test_name=fn
# Always use / for URLs.
pictures[test_name][file_type] ='/'.join((subdir, file))

subdir_rows= []
forname, testinsorted(pictures.items()):
expected_image=test.get('expected', '')
actual_image=test.get('actual', '')

if'diff'intest:
# A real failure in the image generation, resulting in
# different images.
status=" (failed)"
failed=f'<a href="{test["diff"]}">diff</a>'
current=linked_image_template.format(actual_image)
failed_rows.append(row_template.format(name, "", current,
expected_image, failed))
elif'actual'notintest:
# A failure in the test, resulting in no current image
status=" (failed)"
failed='--'
current='(Failure in test, no image produced)'
failed_rows.append(row_template.format(name, "", current,
expected_image, failed))
else:
status=" (passed)"
failed='--'
current=linked_image_template.format(actual_image)

subdir_rows.append(row_template.format(name, status, current,
expected_image, failed))

body_sections.append(
subdir_template.format(subdir=subdir, rows='\n'.join(subdir_rows)))

iffailed_rows:
failed=failed_template.format(rows='\n'.join(failed_rows))
else:
failed=''
body=''.join(body_sections)
html=html_template.format(failed=failed, body=body)
index=os.path.join(image_dir, "index.html")
withopen(index, "w") asf:
f.write(html)

show_message=notshow_browser
ifshow_browser:
try:
importwebbrowser
webbrowser.open(index)
exceptException:
show_message=True

ifshow_message:
print(f"Open {index} in a browser for a visual comparison.")


if__name__=='__main__':
parser=argparse.ArgumentParser()
parser.add_argument('--no-browser', action='store_true',
help="Don't show browser after creating index page.")
args=parser.parse_args()
run(show_browser=notargs.no_browser)