add docs for all converter test code

borg/testsuite/convert.py

@@ -20,6 +20,12 @@ pytestmark = pytest.mark.skipif(attic is None,
                                 reason='cannot find an attic install')
 
 def repo_valid(path):
+    """
+    utility function to check if borg can open a repository
+
+    :param path: the path to the repository
+    :returns: if borg can check the repository
+    """
     repository = Repository(str(path), create=False)
     # can't check raises() because check() handles the error
     state = repository.check()
@@ -27,6 +33,12 @@ def repo_valid(path):
     return state
 
 def key_valid(path):
+    """
+    check that the new keyfile is alright
+
+    :param path: the path to the key file
+    :returns: if the file starts with the borg magic string
+    """
     keyfile = os.path.join(get_keys_dir(),
                            os.path.basename(path))
     with open(keyfile, 'r') as f:
@@ -34,6 +46,12 @@ def key_valid(path):
 
 @pytest.fixture(autouse=True)
 def attic_repo(tmpdir):
+    """
+    create an attic repo with some stuff in it
+
+    :param tmpdir: path to the repository to be created
+    :returns: a attic.repository.Repository object
+    """
     attic_repo = attic.repository.Repository(str(tmpdir), create=True)
     # throw some stuff in that repo, copied from `RepositoryTestCase.test1`
     for x in range(100):
@@ -43,6 +61,16 @@ def attic_repo(tmpdir):
 
 @pytest.mark.usefixtures("tmpdir")
 def test_convert_segments(tmpdir, attic_repo):
+    """test segment conversion
+
+    this will load the given attic repository, list all the segments
+    then convert them one at a time. we need to close the repo before
+    conversion otherwise we have errors from borg
+
+    :param tmpdir: a temporary directory to run the test in (builtin
+    fixture)
+    :param attic_repo: a populated attic repository (fixture)
+    """
     # check should fail because of magic number
     assert not repo_valid(tmpdir)
     print("opening attic repository with borg and converting")
@@ -53,11 +81,27 @@ def test_convert_segments(tmpdir, attic_repo):
     assert repo_valid(tmpdir)
 
 class MockArgs:
+    """
+    mock attic location
+
+    this is used to simulate a key location with a properly loaded
+    repository object to create a key file
+    """
     def __init__(self, path):
         self.repository = attic.helpers.Location(path)
 
 @pytest.fixture()
 def attic_key_file(attic_repo, tmpdir):
+    """
+    create an attic key file from the given repo, in the keys
+    subdirectory of the given tmpdir
+
+    :param attic_repo: an attic.repository.Repository object (fixture
+    define above)
+    :param tmpdir: a temporary directory (a builtin fixture)
+    :returns: the KeyfileKey object as returned by
+    attic.key.KeyfileKey.create()
+    """
     keys_dir = str(tmpdir.mkdir('keys'))
 
     # we use the repo dir for the created keyfile, because we do
@@ -73,12 +117,34 @@ def attic_key_file(attic_repo, tmpdir):
                                        MockArgs(keys_dir))
 
 def test_keys(tmpdir, attic_repo, attic_key_file):
+    """test key conversion
+
+    test that we can convert the given key to a properly formatted
+    borg key. assumes that the ATTIC_KEYS_DIR and BORG_KEYS_DIR have
+    been properly populated by the attic_key_file fixture.
+
+    :param tmpdir: a temporary directory (a builtin fixture)
+    :param attic_repo: an attic.repository.Repository object (fixture
+    define above)
+    :param attic_key_file: an attic.key.KeyfileKey (fixture created above)
+    """
     repository = AtticRepositoryConverter(str(tmpdir), create=False)
     keyfile = AtticKeyfileKey.find_key_file(repository)
     AtticRepositoryConverter.convert_keyfiles(keyfile, dryrun=False)
     assert key_valid(attic_key_file.path)
 
 def test_convert_all(tmpdir, attic_repo, attic_key_file):
+    """test all conversion steps
+
+    this runs everything. mostly redundant test, since everything is
+    done above. yet we expect a NotImplementedError because we do not
+    convert caches yet.
+
+    :param tmpdir: a temporary directory (a builtin fixture)
+    :param attic_repo: an attic.repository.Repository object (fixture
+    define above)
+    :param attic_key_file: an attic.key.KeyfileKey (fixture created above)
+    """
     # check should fail because of magic number
     assert not repo_valid(tmpdir)
     print("opening attic repository with borg and converting")