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Added support for data uris, test SVG, split process tests
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Bart van der Schoor
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Mar 1, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| import base64 | ||
| import os | ||
|
|
||
| from django.conf import settings | ||
| from django.test import TestCase | ||
|
|
||
| from mail_editor.process import ( | ||
| cid_for_bytes, | ||
| load_image, | ||
| make_url_absolute, | ||
| read_data_uri, | ||
| read_image_file, | ||
| ) | ||
|
|
||
|
|
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| class ProcessHelpersTestCase(TestCase): | ||
| def test_make_url_absolute(self): | ||
| tests = [ | ||
| ("http://example.com", "/foo", "http://example.com/foo"), | ||
| ("http://example.com", "foo", "http://example.com/foo"), | ||
| ("http://example.com", "", "http://example.com"), | ||
| ("http://example.com", "http://example.com/foo", "http://example.com/foo"), | ||
| ("http://example.com", "", "http://example.com"), | ||
| ("", "http://example.com/foo", "http://example.com/foo"), | ||
| ("", "foo", "/foo"), | ||
| ("", "", "/"), | ||
| # extras | ||
| ("http://example.com", "tel:123456789", "tel:123456789"), | ||
| ("http://example.com", "mailto:foo@example.com", "mailto:foo@example.com"), | ||
| ( | ||
| "http://example.com", | ||
| "data:image/png;base64,xyz", | ||
| "data:image/png;base64,xyz", | ||
| ), | ||
| ] | ||
| for i, (base, url, expected) in enumerate(tests): | ||
| with self.subTest((i, base, url)): | ||
| self.assertEqual(make_url_absolute(url, base), expected) | ||
|
|
||
| def test_cid_for_bytes(self): | ||
| self.assertEqual(cid_for_bytes(b"abc"), cid_for_bytes(b"abc")) | ||
| self.assertNotEqual(cid_for_bytes(b"12356"), cid_for_bytes(b"abc")) | ||
|
|
||
| def test_read_image_file(self): | ||
| with self.subTest("exists"): | ||
| path = os.path.join(settings.STATIC_ROOT, "logo.png") | ||
| with open(path, "rb") as f: | ||
| expected = f.read() | ||
|
|
||
| data = read_image_file(path) | ||
| self.assertEqual(data.content, expected) | ||
| self.assertEqual(data.content_type, "image/png") | ||
|
|
||
| with self.subTest("not exists"): | ||
| path = os.path.join(settings.STATIC_ROOT, "not_exists.png") | ||
| data = read_image_file(path) | ||
| self.assertIsNone(data) | ||
|
|
||
| def test_read_data_uri(self): | ||
| path = os.path.join(settings.STATIC_ROOT, "logo.png") | ||
| with open(path, "rb") as f: | ||
| png_data = f.read() | ||
| png_b64 = base64.b64encode(png_data).decode("utf8") | ||
|
|
||
| with self.subTest("valid"): | ||
| datauri = f"data:image/png;base64,{png_b64}" | ||
| data = read_data_uri(datauri) | ||
| self.assertEqual(data.content, png_data) | ||
| self.assertEqual(data.content_type, "image/png") | ||
|
|
||
| with self.subTest("bad content"): | ||
| datauri = "data:image/png;base64,xxxxxxxxxxx" | ||
| data = read_data_uri(datauri) | ||
| self.assertIsNone(data) | ||
|
|
||
| def test_load_image(self): | ||
| # TODO properly test both collected STATIC_ROOT and the development staticfiles.finders fallback | ||
|
|
||
| static_url = make_url_absolute(settings.STATIC_URL, "http://testserver") | ||
| media_url = make_url_absolute(settings.MEDIA_URL, "http://testserver") | ||
|
|
||
| with self.subTest("static URL & PNG"): | ||
| with open(os.path.join(settings.STATIC_ROOT, "logo.png"), "rb") as f: | ||
| expected = f.read() | ||
|
|
||
| data = load_image( | ||
| "/static/logo.png", "http://testserver", static_url, media_url | ||
| ) | ||
| self.assertEqual(data.content, expected) | ||
| self.assertEqual(data.content_type, "image/png") | ||
|
|
||
| with self.subTest("static URL & SVG"): | ||
| data = load_image( | ||
| "/static/image.svg", "http://testserver", static_url, media_url | ||
| ) | ||
| self.assertIsNone(data) | ||
|
|
||
| with self.subTest("media URL & JPG"): | ||
| with open(os.path.join(settings.MEDIA_ROOT, "logo.jpg"), "rb") as f: | ||
| expected = f.read() | ||
|
|
||
| data = load_image( | ||
| "/media/logo.jpg", "http://testserver", static_url, media_url | ||
| ) | ||
| self.assertEqual(data.content, expected) | ||
| self.assertEqual(data.content_type, "image/jpeg") | ||
|
|
||
| with self.subTest("datauri & PNG"): | ||
| path = os.path.join(settings.STATIC_ROOT, "logo.png") | ||
| with open(path, "rb") as f: | ||
| png_data = f.read() | ||
| png_b64 = base64.b64encode(png_data).decode("utf8") | ||
|
|
||
| data = load_image( | ||
| f"data:image/png;base64,{png_b64}", | ||
| "http://testserver", | ||
| static_url, | ||
| media_url, | ||
| ) | ||
| self.assertEqual(data.content, png_data) | ||
| self.assertEqual(data.content_type, "image/png") | ||
|
|
||
| with self.subTest("datauri & SVG"): | ||
| path = os.path.join(settings.STATIC_ROOT, "image.svg") | ||
| with open(path, "rb") as f: | ||
| svg_data = f.read() | ||
| svg_b64 = base64.b64encode(svg_data).decode("utf8") | ||
|
|
||
| data = load_image( | ||
| f"data:image/svg+xml;base64,{svg_b64}", | ||
| "http://testserver", | ||
| static_url, | ||
| media_url, | ||
| ) | ||
| self.assertIsNone(data) | ||
|
|
||
| with self.subTest("static not exists"): | ||
| data = load_image( | ||
| "/static/not_exists.png", "http://testserver", static_url, media_url | ||
| ) | ||
| self.assertIsNone(data) | ||
|
|
||
| with self.subTest("media not exists"): | ||
| data = load_image( | ||
| "/media/not_exists.png", "http://testserver", static_url, media_url | ||
| ) | ||
| self.assertIsNone(data) |
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