diff --git a/tests/backend/builders/plugin/test_interface.py b/tests/backend/builders/plugin/test_interface.py
index 8a8bfdd88..afaa33de7 100644
--- a/tests/backend/builders/plugin/test_interface.py
+++ b/tests/backend/builders/plugin/test_interface.py
@@ -127,7 +127,6 @@ def test_invalid_metadata(self, isolation):
         }
         builder = MockBuilder(str(isolation), config=config)
         builder.PLUGIN_NAME = 'foo'
-        builder.get_version_api = lambda: {'1': lambda *_args, **_kwargs: ''}
 
         with pytest.raises(
             ValueError,
diff --git a/tests/backend/builders/test_binary.py b/tests/backend/builders/test_binary.py
index 4c1e2ea57..cce31c6a6 100644
--- a/tests/backend/builders/test_binary.py
+++ b/tests/backend/builders/test_binary.py
@@ -21,7 +21,7 @@ def __init__(self, env_vars: dict):
     def __eq__(self, other):
         return all(not (key not in other or other[key] != value) for key, value in self.env_vars.items())
 
-    def __hash__(self):
+    def __hash__(self):  # no cov
         return hash(self.env_vars)
 
 
diff --git a/tests/backend/builders/test_wheel.py b/tests/backend/builders/test_wheel.py
index 13b943110..56309e633 100644
--- a/tests/backend/builders/test_wheel.py
+++ b/tests/backend/builders/test_wheel.py
@@ -34,10 +34,7 @@ def extract_zip(zip_path: Path, target: Path) -> None:
         for name in z.namelist():
             member = z.getinfo(name)
             path = z.extract(member, target)
-            if member.is_dir():
-                os.chmod(path, 0o755)
-            else:
-                os.chmod(path, member.external_attr >> 16)
+            os.chmod(path, member.external_attr >> 16)
 
 
 def test_class():
diff --git a/tests/conftest.py b/tests/conftest.py
index ef33a54a9..7cccee097 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -458,7 +458,7 @@ def pytest_runtest_setup(item):
         if marker.name == 'requires_unix' and PLATFORM.windows:
             pytest.skip('Not running on a Linux-based platform')
 
-        if marker.name == 'requires_git' and not shutil.which('git'):
+        if marker.name == 'requires_git' and not shutil.which('git'):  # no cov
             pytest.skip('Git not present in the environment')