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When requesting a png for a single page, show overlay as appropriate

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If the png page is invalid then show the overlay for that page
If the png page is not invalid, even if other pages are invalid, then
don't shown the overlay for that page

These keeps the behaviour were if you get the pdf for a pdf which has
invalid pages then the whole PDF is requested (not just a single page)
and all of the pages include the overlay

Tests have been improved to be more explicit about what we are testing
This commit is contained in:
David McDonald
2020-03-09 13:43:06 +00:00
parent 9eda30f4fd
commit d9243b8b8a
2 changed files with 88 additions and 13 deletions
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89
tests/app/template/test_rest.py
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@@ -1143,23 +1143,27 @@ def test_preview_letter_template_precompiled_s3_error(
@pytest.mark.parametrize(
"requested_page, filetype, message, expected_post_url",
"requested_page, message, expected_post_url",
[
("", 'png', "", 'precompiled-preview.png'),
("1", 'png', "content-outside-printable-area", 'precompiled/overlay.png?page_number=1'),
("2", 'png', "content-outside-printable-area", 'precompiled/overlay.png?page_number=2'),
("3", 'png', "content-outside-printable-area", 'precompiled/overlay.png?page_number=3'),
("", 'pdf', "content-outside-printable-area", 'precompiled/overlay.pdf')
# page defaults to 1, page is valid, no overlay shown
("", "", 'precompiled-preview.png'),
# page is valid, no overlay shown
("1", "", 'precompiled-preview.png'),
# page is invalid, overlay shown
("1", "content-outside-printable-area", 'precompiled/overlay.png?page_number=1'),
# page is valid, no overlay shown
("2", "content-outside-printable-area", 'precompiled-preview.png'),
# page is invalid, overlay shown
("3", "content-outside-printable-area", 'precompiled/overlay.png?page_number=3'),
]
)
def test_preview_letter_template_precompiled_png_file_type_or_pdf_with_overlay(
def test_preview_letter_template_precompiled_for_png_file_shows_overlay_where_appropriate(
notify_api,
client,
admin_request,
sample_service,
mocker,
requested_page,
filetype,
message,
expected_post_url,
):
@@ -1206,7 +1210,74 @@ def test_preview_letter_template_precompiled_png_file_type_or_pdf_with_overlay(
page=requested_page,
service_id=notification.service_id,
notification_id=notification.id,
file_type=filetype,
file_type="png",
)
with pytest.raises(ValueError):
mock_post.last_request.json()
assert mock_get_letter_pdf.called_once_with(notification)
assert base64.b64decode(response['content']) == expected_returned_content
assert response["metadata"] == metadata
@pytest.mark.parametrize(
"invalid_pages",
[
"[1,3]",
"[2,4]", # it shouldn't make a difference if the error was on the first page or not
]
)
def test_preview_letter_template_precompiled_for_pdf_file_shows_overlay_if_content_outside_printable_area(
notify_api,
client,
admin_request,
sample_service,
mocker,
invalid_pages,
):
template = create_template(sample_service,
template_type='letter',
template_name='Pre-compiled PDF',
subject='Pre-compiled PDF',
hidden=True)
notification = create_notification(template)
with set_config_values(notify_api, {
'TEMPLATE_PREVIEW_API_HOST': 'http://localhost/notifications-template-preview',
'TEMPLATE_PREVIEW_API_KEY': 'test-key'
}):
with requests_mock.Mocker() as request_mock:
pdf_content = b'\x00\x01'
expected_returned_content = b'\x00\x02'
metadata = {
"message": "content-outside-printable-area",
"invalid_pages": invalid_pages,
"page_count": "4"
}
mock_get_letter_pdf = mocker.patch(
'app.template.rest.get_letter_pdf_and_metadata',
return_value=(pdf_content, metadata)
)
mocker.patch('app.template.rest.extract_page_from_pdf', return_value=pdf_content)
mock_post = request_mock.post(
'http://localhost/notifications-template-preview/precompiled/overlay.pdf',
content=expected_returned_content,
headers={'X-pdf-page-count': '4'},
status_code=200
)
response = admin_request.get(
'template.preview_letter_template_by_notification_id',
service_id=notification.service_id,
notification_id=notification.id,
file_type="pdf",
)
with pytest.raises(ValueError):