457 lines
19 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import absolute_import
import os
import sys
from django.conf import settings
from django.template import loader, RequestContext
from django.test import TestCase
from django.test.utils import override_settings
from django.test.client import RequestFactory
from django.utils.encoding import smart_str
import six
from wkhtmltopdf.subprocess import CalledProcessError
from wkhtmltopdf.utils import (_options_to_args, make_absolute_paths,
wkhtmltopdf, render_pdf_from_template,
render_to_temporary_file, RenderedFile)
from wkhtmltopdf.views import PDFResponse, PDFTemplateView, PDFTemplateResponse
class UnicodeContentPDFTemplateView(PDFTemplateView):
"""
PDFTemplateView with the addition of unicode content in his context.
Used in unicode content view testing.
"""
def get_context_data(self, **kwargs):
Base = super(UnicodeContentPDFTemplateView, self)
context = Base.get_context_data(**kwargs)
context['title'] = u''
return context
class TestUtils(TestCase):
def setUp(self):
# Clear standard error
self._stderr = sys.stderr
sys.stderr = open(os.devnull, 'w')
self.factory = RequestFactory()
def tearDown(self):
sys.stderr = self._stderr
def test_options_to_args(self):
self.assertEqual(_options_to_args(), [])
self.assertEqual(_options_to_args(heart=u'', verbose=True,
file_name='file-name'),
['--file-name', 'file-name',
'--heart', u'',
'--verbose'])
self.assertEqual(_options_to_args(heart=u'', quiet=True,
file_name='file-name'),
['--file-name', 'file-name',
'--heart', u'',
'--quiet'])
self.assertEqual(_options_to_args(heart=u'', quiet=False,
file_name='file-name'),
['--file-name', 'file-name',
'--heart', u''])
def test_wkhtmltopdf(self):
"""Should run wkhtmltopdf to generate a PDF"""
title = 'A test template.'
template = loader.get_template('sample.html')
temp_file = render_to_temporary_file(template, context={'title': title})
try:
# Standard call
pdf_output = wkhtmltopdf(pages=[temp_file.name])
self.assertTrue(pdf_output.startswith(b'%PDF'), pdf_output)
# Single page
pdf_output = wkhtmltopdf(pages=temp_file.name)
self.assertTrue(pdf_output.startswith(b'%PDF'), pdf_output)
# Unicode
pdf_output = wkhtmltopdf(pages=[temp_file.name], title=u'')
self.assertTrue(pdf_output.startswith(b'%PDF'), pdf_output)
# Invalid arguments
self.assertRaises(CalledProcessError,
wkhtmltopdf, pages=[])
finally:
temp_file.close()
def test_wkhtmltopdf_with_unicode_content(self):
"""A wkhtmltopdf call should render unicode content properly"""
title = u''
template = loader.get_template('unicode.html')
temp_file = render_to_temporary_file(template, context={'title': title})
try:
pdf_output = wkhtmltopdf(pages=[temp_file.name])
self.assertTrue(pdf_output.startswith(b'%PDF'), pdf_output)
finally:
temp_file.close()
def test_render_to_temporary_file(self):
"""Should render a template to a temporary file."""
title = 'A test template.'
template = loader.get_template('sample.html')
temp_file = render_to_temporary_file(template, context={'title': title})
temp_file.seek(0)
saved_content = smart_str(temp_file.read())
self.assertTrue(title in saved_content)
temp_file.close()
def _render_file(self, template, context):
"""Helper method for testing rendered file deleted/persists tests."""
render = RenderedFile(template=template, context=context)
render.temporary_file.seek(0)
saved_content = smart_str(render.temporary_file.read())
return (saved_content, render.filename)
def test_rendered_file_deleted_on_production(self):
"""If WKHTMLTOPDF_DEBUG=False, delete rendered file on object close."""
title = 'A test template.'
template = loader.get_template('sample.html')
debug = getattr(settings, 'WKHTMLTOPDF_DEBUG', settings.DEBUG)
saved_content, filename = self._render_file(template=template,
context={'title': title})
# First verify temp file was rendered correctly.
self.assertTrue(title in saved_content)
# Then check if file is deleted when debug=False.
self.assertFalse(debug)
self.assertFalse(os.path.isfile(filename))
def test_rendered_file_persists_on_debug(self):
"""If WKHTMLTOPDF_DEBUG=True, the rendered file should persist."""
title = 'A test template.'
template = loader.get_template('sample.html')
with self.settings(WKHTMLTOPDF_DEBUG=True):
debug = getattr(settings, 'WKHTMLTOPDF_DEBUG', settings.DEBUG)
saved_content, filename = self._render_file(template=template,
context={'title': title})
# First verify temp file was rendered correctly.
self.assertTrue(title in saved_content)
# Then check if file persists when debug=True.
self.assertTrue(debug)
self.assertTrue(os.path.isfile(filename))
def test_render_with_null_request(self):
"""If request=None, the file should render properly."""
title = 'A test template.'
template = loader.get_template('sample.html')
pdf_content = render_pdf_from_template('sample.html',
header_template=None,
footer_template=None,
context={'title': title})
self.assertTrue(pdf_content.startswith(b'%PDF-'))
self.assertTrue(pdf_content.endswith(b'%%EOF\n'))
@override_settings(STATIC_URL='/static/', STATIC_ROOT='path/to/some/dir')
def test_make_absolute_paths(self):
"""
Regression test for https://github.com/incuna/django-wkhtmltopdf/issues/22
"""
content = """
<img src="/static/foo.png"/>
<img src="/static/bar/static/foo.png"/>
"""
expected = """
<img src="file:///path/to/some/dir/foo.png"/>
<img src="file:///path/to/some/dir/bar/static/foo.png"/>
"""
self.assertEqual(make_absolute_paths(content), expected)
class TestViews(TestCase):
template = 'sample.html'
context_template = 'context.html'
footer_template = 'footer.html'
pdf_filename = 'output.pdf'
attached_fileheader = 'attachment; filename="{0}"'
inline_fileheader = 'inline; filename="{0}"'
def test_pdf_response(self):
"""Should generate correct HttpResponse object and content type."""
# 404
response = PDFResponse(content='', status=404)
self.assertEqual(response.status_code, 404)
self.assertEqual(response.content, b'')
self.assertEqual(response['Content-Type'], 'application/pdf')
self.assertFalse(response.has_header('Content-Disposition'))
content = b'%PDF-1.4\n%%EOF'
# Without filename
response = PDFResponse(content=content)
self.assertEqual(response.status_code, 200)
self.assertEqual(response.content, content)
self.assertEqual(response['Content-Type'], 'application/pdf')
self.assertFalse(response.has_header('Content-Disposition'))
# With filename
response = PDFResponse(content=content, filename="nospace.pdf")
self.assertEqual(response['Content-Disposition'],
'attachment; filename="nospace.pdf"')
response = PDFResponse(content=content, filename="one space.pdf")
self.assertEqual(response['Content-Disposition'],
'attachment; filename="one space.pdf"')
response = PDFResponse(content=content, filename="4'5\".pdf")
self.assertEqual(response['Content-Disposition'],
'attachment; filename="4\'5.pdf"')
response = PDFResponse(content=content, filename=u"♥.pdf")
try:
import unidecode
except ImportError:
filename = '?.pdf'
else:
filename = '.pdf'
self.assertEqual(response['Content-Disposition'],
'attachment; filename="{0}"'.format(filename))
# Content as a direct output
response = PDFResponse(content=content, filename="nospace.pdf",
show_content_in_browser=True)
self.assertEqual(response['Content-Disposition'],
'inline; filename="nospace.pdf"')
response = PDFResponse(content=content, filename="one space.pdf",
show_content_in_browser=True)
self.assertEqual(response['Content-Disposition'],
'inline; filename="one space.pdf"')
response = PDFResponse(content=content, filename="4'5\".pdf",
show_content_in_browser=True)
self.assertEqual(response['Content-Disposition'],
'inline; filename="4\'5.pdf"')
response = PDFResponse(content=content, filename=u"♥.pdf",
show_content_in_browser=True)
try:
import unidecode
except ImportError:
filename = '?.pdf'
else:
filename = '.pdf'
self.assertEqual(response['Content-Disposition'],
'inline; filename="{0}"'.format(filename))
# Content-Type
response = PDFResponse(content=content,
content_type='application/x-pdf')
self.assertEqual(response['Content-Type'], 'application/x-pdf')
def test_pdf_template_response(self, show_content=False):
"""Test PDFTemplateResponse."""
context = {'title': 'Heading'}
request = RequestFactory().get('/')
response = PDFTemplateResponse(request=request,
template=self.template,
context=context,
show_content_in_browser=show_content)
self.assertEqual(response._request, request)
self.assertEqual(response.template_name, self.template)
self.assertEqual(response.context_data, context)
self.assertEqual(response.filename, None)
self.assertEqual(response.header_template, None)
self.assertEqual(response.footer_template, None)
self.assertEqual(response.cmd_options, {})
self.assertFalse(response.has_header('Content-Disposition'))
# Render to temporary file
template = loader.get_template(self.template)
tempfile = render_to_temporary_file(template, context=context)
tempfile.seek(0)
html_content = smart_str(tempfile.read())
self.assertTrue(html_content.startswith('<html>'))
self.assertTrue('<h1>{title}</h1>'.format(**context)
in html_content)
pdf_content = response.rendered_content
self.assertTrue(pdf_content.startswith(b'%PDF-'))
self.assertTrue(pdf_content.endswith(b'%%EOF\n'))
# Footer
cmd_options = {'title': 'Test PDF'}
response = PDFTemplateResponse(request=request,
template=self.template,
context=context,
filename=self.pdf_filename,
show_content_in_browser=show_content,
footer_template=self.footer_template,
cmd_options=cmd_options)
self.assertEqual(response.filename, self.pdf_filename)
self.assertEqual(response.header_template, None)
self.assertEqual(response.footer_template, self.footer_template)
self.assertEqual(response.cmd_options, cmd_options)
self.assertTrue(response.has_header('Content-Disposition'))
footer_template = loader.get_template(self.footer_template)
tempfile = render_to_temporary_file(footer_template, context=context,
request=request)
tempfile.seek(0)
footer_content = smart_str(tempfile.read())
footer_content = make_absolute_paths(footer_content)
media_url = 'file://{0}/'.format(settings.MEDIA_ROOT)
self.assertTrue(media_url in footer_content, True)
static_url = 'file://{0}/'.format(settings.STATIC_ROOT)
self.assertTrue(static_url in footer_content, True)
pdf_content = response.rendered_content
title = '\0'.join(cmd_options['title'])
self.assertIn(six.b(title), pdf_content)
def test_pdf_template_response_to_browser(self):
self.test_pdf_template_response(show_content=True)
def test_pdf_template_view(self, show_content=False):
"""Test PDFTemplateView."""
view = PDFTemplateView.as_view(filename=self.pdf_filename,
show_content_in_browser=show_content,
template_name=self.template,
footer_template=self.footer_template)
# As PDF
request = RequestFactory().get('/')
response = view(request)
self.assertEqual(response.status_code, 200)
response.render()
fileheader = self.attached_fileheader
if show_content:
fileheader = self.inline_fileheader
self.assertEqual(response['Content-Disposition'],
fileheader.format(self.pdf_filename))
self.assertTrue(response.content.startswith(b'%PDF-'))
self.assertTrue(response.content.endswith(b'%%EOF\n'))
# As HTML
request = RequestFactory().get('/?as=html')
response = view(request)
self.assertEqual(response.status_code, 200)
response.render()
self.assertFalse(response.has_header('Content-Disposition'))
self.assertTrue(response.content.startswith(b'<html>'))
# POST
request = RequestFactory().post('/')
response = view(request)
self.assertEqual(response.status_code, 405)
def test_pdf_template_view_to_browser(self):
self.test_pdf_template_view(show_content=True)
def test_pdf_template_view_unicode(self, show_content=False):
"""Test PDFTemplateView with unicode content."""
view = UnicodeContentPDFTemplateView.as_view(
filename=self.pdf_filename,
show_content_in_browser=show_content,
template_name=self.template
)
# As PDF
request = RequestFactory().get('/')
response = view(request)
self.assertEqual(response.status_code, 200)
response.render()
fileheader = self.attached_fileheader
if show_content:
fileheader = self.inline_fileheader
self.assertEqual(response['Content-Disposition'],
fileheader.format(self.pdf_filename))
# not sure how we can test this as the contents is all encoded...
# best we can do for the moment is check it's a pdf and it worked.
# self.assertTrue('☃' in response.content)
self.assertTrue(response.content.startswith(b'%PDF-'))
self.assertTrue(response.content.endswith(b'%%EOF\n'))
def test_pdf_template_view_unicode_to_browser(self):
self.test_pdf_template_view_unicode(show_content=True)
def test_get_cmd_options(self):
# Default cmd_options
view = PDFTemplateView()
self.assertEqual(view.cmd_options, PDFTemplateView.cmd_options)
self.assertEqual(PDFTemplateView.cmd_options, {})
# Instantiate with new cmd_options
cmd_options = {'orientation': 'landscape'}
view = PDFTemplateView(cmd_options=cmd_options)
self.assertEqual(view.cmd_options, cmd_options)
self.assertEqual(PDFTemplateView.cmd_options, {})
# Update local instance of cmd_options
view = PDFTemplateView()
view.cmd_options.update(cmd_options)
self.assertEqual(view.cmd_options, cmd_options)
self.assertEqual(PDFTemplateView.cmd_options, {})
def _render_file(self, template, context, request=None):
"""Helper method for testing rendered file deleted/persists tests."""
render = RenderedFile(template=template, context=context, request=request)
render.temporary_file.seek(0)
saved_content = smart_str(render.temporary_file.read())
return (saved_content, render.filename)
@override_settings(
DEBUG=True,
INTERNAL_IPS=['127.0.0.1'],
TEMPLATES=[
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
],
},
},
]
)
def test_get_context_processor_variables_debug(self, show_content=False):
request = RequestFactory().get('/')
template = loader.get_template(self.context_template)
saved_content, filename = self._render_file(template=template, context={}, request=request)
self.assertTrue('<h1>True</h1>' in saved_content)
with override_settings(DEBUG=False):
request = RequestFactory().get('/')
template = loader.get_template(self.context_template)
saved_content, filename = self._render_file(template=template, context={}, request=request)
self.assertTrue('<h1></h1>' in saved_content)
view = PDFTemplateView.as_view(filename=self.pdf_filename,
show_content_in_browser=show_content,
template_name=self.context_template,
footer_template=self.footer_template)
# As HTML
request = RequestFactory().get('/?as=html')
response = view(request)
self.assertEqual(response.status_code, 200)
response.render()
self.assertIn(b'<h1>True</h1>', response.content)
with override_settings(DEBUG=False):
request = RequestFactory().get('/?as=html')
response = view(request)
self.assertEqual(response.status_code, 200)
response.render()
self.assertIn(b'<h1></h1>', response.content)
def test_get_context_processor_variables_debug_show_content(self):
self.test_get_context_processor_variables_debug(show_content=True)