tests: add test cases for permissions module

Signed-off-by: John Mulligan <[email protected]>

Author: phlogistonjohn

tests/test_permissions.py

@@ -0,0 +1,97 @@
+#
+# sambacc: a samba container configuration tool
+# Copyright (C) 2022  John Mulligan
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program 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 this program.  If not, see <http://www.gnu.org/licenses/>
+#
+
+import os
+
+import pytest
+import xattr  # type: ignore
+
+import sambacc.permissions
+
+
+@pytest.mark.parametrize(
+    "cls",
+    [
+        sambacc.permissions.NoopPermsHandler,
+        sambacc.permissions.InitPosixPermsHandler,
+        sambacc.permissions.AlwaysPosixPermsHandler,
+    ],
+)
+def test_permissions_path(cls):
+    assert cls("/foo", "user.foo", options={}).path() == "/foo"
+
+
+def test_noop_handler():
+    nh = sambacc.permissions.NoopPermsHandler("/foo", "user.foo", options={})
+    assert nh.path() == "/foo"
+    assert not nh.has_status()
+    assert nh.status_ok()
+    assert nh.update() is None
+
+
+@pytest.fixture(scope="function")
+def tmp_path_xattrs_ok(tmp_path_factory):
+    tmpp = tmp_path_factory.mktemp("needs_xattrs")
+    try:
+        xattr.set(str(tmpp), "user.deleteme", "1")
+        xattr.remove(str(tmpp), "user.deleteme")
+    except OSError:
+        raise pytest.skip(
+            "temp dir does not support xattrs"
+            " (try changing basetmp to a file system that supports xattrs)"
+        )
+    return tmpp
+
+
+def test_init_handler(tmp_path_xattrs_ok):
+    path = tmp_path_xattrs_ok / "foo"
+    os.mkdir(path)
+    ih = sambacc.permissions.InitPosixPermsHandler(
+        str(path), "user.marker", options={}
+    )
+    assert ih.path().endswith("/foo")
+    assert not ih.has_status()
+    assert not ih.status_ok()
+
+    ih.update()
+    assert ih.has_status()
+    assert ih.status_ok()
+
+    os.chmod(path, 0o755)
+    ih.update()
+    assert (os.stat(path).st_mode & 0o777) == 0o755
+
+
+def test_always_handler(tmp_path_xattrs_ok):
+    path = tmp_path_xattrs_ok / "foo"
+    os.mkdir(path)
+    ih = sambacc.permissions.AlwaysPosixPermsHandler(
+        str(path), "user.marker", options={}
+    )
+    assert ih.path().endswith("/foo")
+    assert not ih.has_status()
+    assert not ih.status_ok()
+
+    ih.update()
+    assert ih.has_status()
+    assert ih.status_ok()
+
+    os.chmod(path, 0o755)
+    assert (os.stat(path).st_mode & 0o777) == 0o755
+    ih.update()
+    assert (os.stat(path).st_mode & 0o777) == 0o777