diff --git a/src/qasync/__init__.py b/src/qasync/__init__.py
index d7702c9..a4a4c5b 100644
--- a/src/qasync/__init__.py
+++ b/src/qasync/__init__.py
@@ -29,7 +29,7 @@
 
 # If QT_API env variable is given, use that or fail trying
 qtapi_env = os.getenv("QT_API", "").strip().lower()
-if qtapi_env:
+if qtapi_env: # pragma: no cover
     env_to_mod_map = {
         "pyqt5": "PyQt5",
         "pyqt6": "PyQt6",
@@ -51,14 +51,14 @@
     QtModule = importlib.import_module(QtModuleName)
 
 # If a Qt lib is already imported, use that
-if not QtModule:
+if not QtModule:  # pragma: no cover
     for QtModuleName in ("PyQt5", "PyQt6", "PySide2", "PySide6"):
         if QtModuleName in sys.modules:
             QtModule = sys.modules[QtModuleName]
             break
 
 # Try importing qt libs
-if not QtModule:
+if not QtModule:  # pragma: no cover
     for QtModuleName in ("PyQt5", "PyQt6", "PySide2", "PySide6"):
         try:
             QtModule = importlib.import_module(QtModuleName)
@@ -180,7 +180,7 @@ def __init__(self, max_workers=10, stack_size=None):
         super().__init__()
         self.__max_workers = max_workers
         self.__queue = Queue()
-        if stack_size is None:
+        if stack_size is None:  # pragma: no cover
             # Match cpython/Python/thread_pthread.h
             if sys.platform.startswith("darwin"):
                 stack_size = 16 * 2**20
diff --git a/src/qasync/_common.py b/src/qasync/_common.py
index bed5eb4..4a5bedf 100644
--- a/src/qasync/_common.py
+++ b/src/qasync/_common.py
@@ -18,7 +18,7 @@ def with_logger(cls):
     module = cls.__module__
     if module is not None:
         cls_name = module + "." + cls_name
-    else:
+    else:  # pragma: no cover
         raise AssertionError
     setattr(cls, attr_name, logging.getLogger(cls_name))
     return cls