Issue 5336 - Allow additional include, page, and template paths using CMS

tests/test_multi_source.py

Index: tests/test_multi_source.py
===================================================================
new file mode 100644
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+++ b/tests/test_multi_source.py
@@ -0,0 +1,121 @@
+# This file is part of the Adblock Plus web scripts,
+# Copyright (C) 2006-present eyeo GmbH
+#
+# Adblock Plus is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 3 as
+# published by the Free Software Foundation.
+#
+# Adblock Plus is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+
+from __future__ import unicode_literals
+
+import pytest
+
+from cms.sources import Source, MultiSource
+
+
+class FakeSource(Source):
+    """Fake source object used for testing."""
+
+    def __init__(self, name, files, cache_dir='cache', version=None):
+        self.log = []
+        self._name = name
+        self._files = files
+        self._cache_dir = cache_dir
+        if version is not None:
+            self.version = version
+
+    def __enter__(self):
+        self.log.append('enter')
+        return self
+
+    def __exit__(self, exc_type, exc_value, tb):
+        self.log.append('exit: {} {}'.format(exc_type, exc_value))
+        return False
+
+    def close(self):
+        self.log.append('close')
+
+    def has_file(self, filename):
+        return filename in self._files
+
+    def read_file(self, filename, binary=False):
+        data = self._files[filename]
+        if binary:
+            data = data.encode('utf-8')
+        return data, '{}:{}'.format(self._name, filename)
+
+    def list_files(self, subdir):
+        if subdir and not subdir.endswith('/'):
+            subdir += '/'
+        return [fn for fn in self._files if fn.startswith(subdir)]
+
+    def get_cache_dir(self):
+        return self._cache_dir
+
+
+@pytest.fixture
+def base_sources():
+    return [
+        FakeSource('foo', {'a': 'b', 'c': 'd', 'a/b/c': 'c'}, version='42'),
+        FakeSource('bar', {'b': 'b', 'c': 'c', 'a/d': 'd'}, cache_dir='oops'),
+    ]
+
+
+@pytest.fixture
+def multi_source(base_sources):
+    return MultiSource(base_sources)
+
+
+def test_lifecycle(multi_source, base_sources):
+    with multi_source as ms:
+        ms.close()
+    for bs in base_sources:
+        assert bs.log == ['enter', 'close', 'exit: None None']
+
+
+def test_lifecycle_error(multi_source, base_sources):
+    with pytest.raises(Exception):
+        with multi_source:
+            raise Exception('42')
+    for bs in base_sources:
+        assert bs.log[-1] == "exit: <type 'exceptions.Exception'> 42"
+
+
+def test_has_file(multi_source):
+    assert multi_source.has_file('a')
+    assert multi_source.has_file('b')
+    assert not multi_source.has_file('d')
+
+
+def test_read_file(multi_source):
+    assert multi_source.read_file('a') == ('b', 'foo:a')
+    assert multi_source.read_file('b') == ('b', 'bar:b')
+    assert multi_source.read_file('c') == ('d', 'foo:c')
+
+
+def test_read_binary(multi_source):
+    assert isinstance(multi_source.read_file('a', binary=True)[0], type(b'b'))
+
+
+def test_list_files(multi_source):
+    assert sorted(multi_source.list_files('')) == ['a', 'a/b/c', 'a/d', 'b',
+                                                   'c']
+    assert sorted(multi_source.list_files('a')) == ['a/b/c', 'a/d']
+    assert sorted(multi_source.list_files('a/')) == ['a/b/c', 'a/d']
+
+
+def test_version(base_sources):
+    assert MultiSource(base_sources).version == '42'
+    with pytest.raises(AttributeError):
+        MultiSource(list(reversed(base_sources))).version
+
+
+def test_cache_dir(multi_source):
+    assert multi_source.get_cache_dir() == 'cache'