i2p: Convert router configuration tests to pytest style

Signed-off-by: Sunil Mohan Adapa <sunil@medhas.org>

plinth/modules/i2p/tests/test_router_editor.py

@@ -14,8 +14,11 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
+"""
+Test I2P router configuration editing helper.
+"""
 
-import unittest
+import pytest
 
 from plinth.modules.i2p.helpers import RouterEditor
 from plinth.modules.i2p.tests import DATA_DIR
@@ -23,65 +26,63 @@ from plinth.modules.i2p.tests import DATA_DIR
 ROUTER_CONF_PATH = str(DATA_DIR / 'router.config')
 
 
-class RouterEditingTests(unittest.TestCase):
-
-    def setUp(self):
-        self.editor = RouterEditor(ROUTER_CONF_PATH)
-
-    def test_count_favs(self):
-        self.editor.read_conf()
-        favs = self.editor.get_favorites()
-        self.assertEqual(len(favs.keys()), 17)
-
-    def test_add_normal_favorite(self):
-        self.editor.read_conf()
-        name = 'Somewhere'
-        url = 'http://somewhere-again.i2p'
-        description = "Just somewhere else"
-        self.editor.add_favorite(
-            name, url, description
-        )
-
-        favs = self.editor.get_favorites()
-        self.assertIn(url, favs)
-        favorite = favs[url]
-        self.assertEqual(favorite['name'], name)
-        self.assertEqual(favorite['description'], description)
-
-        self.assertEqual(len(favs), 18)
-
-    def test_add_favorite_with_comma(self):
-        self.editor.read_conf()
-        name = 'Name,with,comma'
-        expected_name = name.replace(',', '.')
-        url = 'http://url-without-comma.i2p'
-        description = "Another,comma,to,play,with"
-        expected_description = description.replace(',', '.')
-
-        self.editor.add_favorite(
-            name, url, description
-        )
-
-        favs = self.editor.get_favorites()
-        self.assertIn(url, favs)
-        favorite = favs[url]
-        self.assertEqual(favorite['name'], expected_name)
-        self.assertEqual(favorite['description'], expected_description)
-
-        self.assertEqual(len(favs), 18)
-
-    def test_add_fav_to_empty_config(self):
-        self.editor.conf_filename = '/tmp/inexistent.conf'
-        self.editor.read_conf()
-        self.assertEqual(len(self.editor.get_favorites()), 0)
-
-        name = 'Test Favorite'
-        url = 'http://test-fav.i2p'
-        self.editor.add_favorite(
-            name, url
-        )
-        self.assertEqual(len(self.editor.get_favorites()), 1)
+@pytest.fixture
+def editor():
+    """Return editor instance object for each test."""
+    return RouterEditor(ROUTER_CONF_PATH)
 
 
-if __name__ == '__main__':
-    unittest.main()
+def test_count_favorites(editor):
+    """Test counting favorites."""
+    editor.read_conf()
+    favorites = editor.get_favorites()
+    assert len(favorites.keys()) == 17
+
+
+def test_add_normal_favorite(editor):
+    """Test adding a normal favorite."""
+    editor.read_conf()
+    name = 'Somewhere'
+    url = 'http://somewhere-again.i2p'
+    description = "Just somewhere else"
+    editor.add_favorite(name, url, description)
+
+    favorites = editor.get_favorites()
+    assert url in favorites
+    favorite = favorites[url]
+    assert favorite['name'] == name
+    assert favorite['description'] == description
+
+    assert len(favorites) == 18
+
+
+def test_add_favorite_with_comma(editor):
+    """Test adding a favorite with common in its name."""
+    editor.read_conf()
+    name = 'Name,with,comma'
+    expected_name = name.replace(',', '.')
+    url = 'http://url-without-comma.i2p'
+    description = "Another,comma,to,play,with"
+    expected_description = description.replace(',', '.')
+
+    editor.add_favorite(name, url, description)
+
+    favorites = editor.get_favorites()
+    assert url in favorites
+    favorite = favorites[url]
+    assert favorite['name'] == expected_name
+    assert favorite['description'] == expected_description
+
+    assert len(favorites) == 18
+
+
+def test_add_fav_to_empty_config(editor):
+    """Test adding favorite to empty configuration."""
+    editor.conf_filename = '/tmp/inexistent.conf'
+    editor.read_conf()
+    assert not editor.get_favorites()
+
+    name = 'Test Favorite'
+    url = 'http://test-fav.i2p'
+    editor.add_favorite(name, url)
+    assert len(editor.get_favorites()) == 1