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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2018-2019 Mike Fährmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
import sys
import unittest
import string
from gallery_dl import extractor
from gallery_dl.extractor.common import Extractor, Message
from gallery_dl.extractor.directlink import DirectlinkExtractor as DLExtractor
class FakeExtractor(Extractor):
category = "fake"
subcategory = "test"
pattern = "fake:"
def items(self):
yield Message.Version, 1
yield Message.Url, "text:foobar", {}
class TestExtractor(unittest.TestCase):
VALID_URIS = (
"https://example.org/file.jpg",
"tumblr:foobar",
"oauth:flickr",
"test:pixiv:",
"recursive:https://example.org/document.html",
)
def setUp(self):
extractor._cache.clear()
extractor._module_iter = iter(extractor.modules)
def test_find(self):
for uri in self.VALID_URIS:
result = extractor.find(uri)
self.assertIsInstance(result, Extractor, uri)
for not_found in ("", "/tmp/file.ext"):
self.assertIsNone(extractor.find(not_found))
for invalid in (None, [], {}, 123, b"test:"):
with self.assertRaises(TypeError):
extractor.find(invalid)
def test_add(self):
uri = "fake:foobar"
self.assertIsNone(extractor.find(uri))
extractor.add(FakeExtractor)
self.assertIsInstance(extractor.find(uri), FakeExtractor)
def test_add_module(self):
uri = "fake:foobar"
self.assertIsNone(extractor.find(uri))
classes = extractor.add_module(sys.modules[__name__])
self.assertEqual(len(classes), 1)
self.assertEqual(classes[0].pattern, FakeExtractor.pattern)
self.assertEqual(classes[0], FakeExtractor)
self.assertIsInstance(extractor.find(uri), FakeExtractor)
def test_blacklist(self):
link_uri = "https://example.org/file.jpg"
test_uri = "test:"
fake_uri = "fake:"
self.assertIsInstance(extractor.find(link_uri), DLExtractor)
self.assertIsInstance(extractor.find(test_uri), Extractor)
self.assertIsNone(extractor.find(fake_uri))
with extractor.blacklist(["directlink"]):
self.assertIsNone(extractor.find(link_uri))
self.assertIsInstance(extractor.find(test_uri), Extractor)
self.assertIsNone(extractor.find(fake_uri))
with extractor.blacklist([], [DLExtractor, FakeExtractor]):
self.assertIsNone(extractor.find(link_uri))
self.assertIsInstance(extractor.find(test_uri), Extractor)
self.assertIsNone(extractor.find(fake_uri))
with extractor.blacklist(["test"], [DLExtractor]):
self.assertIsNone(extractor.find(link_uri))
self.assertIsNone(extractor.find(test_uri))
self.assertIsNone(extractor.find(fake_uri))
def test_from_url(self):
for uri in self.VALID_URIS:
cls = extractor.find(uri).__class__
extr = cls.from_url(uri)
self.assertIs(type(extr), cls)
self.assertIsInstance(extr, Extractor)
for not_found in ("", "/tmp/file.ext"):
self.assertIsNone(FakeExtractor.from_url(not_found))
for invalid in (None, [], {}, 123, b"test:"):
with self.assertRaises(TypeError):
FakeExtractor.from_url(invalid)
def test_unique_pattern_matches(self):
test_urls = []
# collect testcase URLs
for extr in extractor.extractors():
for testcase in extr._get_tests():
test_urls.append((testcase[0], extr))
# iterate over all testcase URLs
for url, extr1 in test_urls:
matches = []
# ... and apply all regex patterns to each one
for extr2 in extractor._cache:
# skip DirectlinkExtractor pattern if it isn't tested
if extr1 != DLExtractor and extr2 == DLExtractor:
continue
match = extr2.pattern.match(url)
if match:
matches.append(match)
# fail if more or less than 1 match happened
if len(matches) > 1:
msg = "'{}' gets matched by more than one pattern:".format(url)
for match in matches:
msg += "\n- "
msg += match.re.pattern
self.fail(msg)
if len(matches) < 1:
msg = "'{}' isn't matched by any pattern".format(url)
self.fail(msg)
def test_docstrings(self):
"""ensure docstring uniqueness"""
for extr1 in extractor.extractors():
for extr2 in extractor.extractors():
if extr1 != extr2 and extr1.__doc__ and extr2.__doc__:
self.assertNotEqual(
extr1.__doc__,
extr2.__doc__,
"{} <-> {}".format(extr1, extr2),
)
def test_names(self):
"""Ensure extractor classes are named CategorySubcategoryExtractor"""
def capitalize(c):
if "-" in c:
return string.capwords(c.replace("-", " ")).replace(" ", "")
return c.capitalize()
for extr in extractor.extractors():
if extr.category not in ("", "oauth"):
expected = "{}{}Extractor".format(
capitalize(extr.category),
capitalize(extr.subcategory),
)
if expected[0].isdigit():
expected = "_" + expected
self.assertEqual(expected, extr.__name__)
if __name__ == "__main__":
unittest.main()
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