Split staticfiles tests in multiple files

[diegoguimaraes]

I made this pull request based on a suggestion made by @timgraham, to improve the structure of the staticfiles test files.

This PR split the tests.py file in multiple files according its scope. Follow the suggested structure:

test_base.py

BaseStaticFilesTestCase(object)
StaticFilesTestCase(BaseStaticFilesTestCase, TestCase)
BaseCollectionTestCase(BaseStaticFilesTestCase)
CollectionTestCase(BaseCollectionTestCase, StaticFilesTestCase)
TestDefaults(object)
TestHashedFiles(object)

test_collections.py

TestFindStatic(CollectionTestCase, TestDefaults)
TestCollection(CollectionTestCase, TestDefaults)
TestCollectionClear(CollectionTestCase)
TestCollectionExcludeNoDefaultIgnore(CollectionTestCase, TestDefaults)
TestNoFilesCreated(object)
TestCollectionDryRun(CollectionTestCase, TestNoFilesCreated)
TestCollectionFilesOverride(CollectionTestCase)
TestCollectionNonLocalStorage(CollectionTestCase, TestNoFilesCreated)
TestCollectionCachedStorage(TestHashedFiles, BaseCollectionTestCase, BaseStaticFilesTestCase, TestCase)
TestCollectionManifestStorage(TestHashedFiles, BaseCollectionTestCase, BaseStaticFilesTestCase, TestCase)
TestCollectionSimpleCachedStorage(BaseCollectionTestCase, BaseStaticFilesTestCase, TestCase)
TestCollectionLinks(CollectionTestCase, TestDefaults)

test_liveserver.py

LiveServerBase(StaticLiveServerTestCase)
StaticLiveServerChecks(LiveServerBase)
StaticLiveServerView(LiveServerBase)

tests.py

TestConfiguration(StaticFilesTestCase)
TestTemplateTag(StaticFilesTestCase)
CustomStaticFilesStorage(storage.StaticFilesStorage)
TestStaticFilePermissions(BaseCollectionTestCase, StaticFilesTestCase)

test_serve.py

TestServeStatic(StaticFilesTestCase)
TestServeDisabled(TestServeStatic)
TestServeStaticWithDefaultURL(TestServeStatic, TestDefaults)
TestServeStaticWithURLHelper(TestServeStatic, TestDefaults)
TestServeAdminMedia(TestServeStatic)

test_finder.py

FinderTestCase(object)
TestFileSystemFinder(StaticFilesTestCase, FinderTestCase)
TestAppDirectoriesFinder(StaticFilesTestCase, FinderTestCase)
TestDefaultStorageFinder(StaticFilesTestCase, FinderTestCase)
TestMiscFinder(TestCase)

[timgraham]

Thanks for this. It needs a rebase at this point. As far as the file names go, I'd try to take inspiration from how the contrib.auth tests are laid out and use filenames like test_<module>.py

[diegoguimaraes]

I'll take a look at contrib.tests and try use them as inspiration to name the staticfiles test files.
Thanks.

[timgraham]

Please send a new PR if you can update this, thanks!