Add # pragma: no cover to a few places which cover edge cases

Signed-off-by: Pedro Algarvio <palgarvio@vmware.com>

src/pytestshellutils/customtypes.py

@@ -28,7 +28,7 @@ class EnvironDict(Dict[str, str]):
     Environ dictionary type.
     """
 
-    def __str__(self) -> str:
+    def __str__(self) -> str:  # pragma: no cover
         """
         String representation of the class.
         """

src/pytestshellutils/utils/__init__.py

@@ -70,7 +70,7 @@ def format_callback_to_string(
     return callback_str
 
 
-def warn_until(
+def warn_until(  # pragma: no cover
     version: str,
     message: str,
     category: Type[Warning] = DeprecationWarning,

src/pytestshellutils/utils/ports.py

@@ -23,7 +23,7 @@ def get_unused_localhost_port(use_cache: bool = False) -> int:
         use_cache:
             If ``use_cache`` is ``True``, consecutive calls to this function will never return the cached port.
     """
-    if not isinstance(use_cache, bool):
+    if not isinstance(use_cache, bool):  # pragma: no cover
         raise pytest.UsageError(
             f"The value of 'use_cache' needs to be an boolean, not {type(use_cache)}"
         )
@@ -65,6 +65,6 @@ def get_connectable_ports(ports: Iterable[int]) -> Set[int]:
                     log.debug("Port %s is connectable!", port)
                     connectable_ports.add(port)
                     sock.shutdown(socket.SHUT_RDWR)
-            except OSError:
+            except OSError:  # pragma: no cover
                 continue
     return connectable_ports

src/pytestshellutils/utils/processes.py

@@ -19,7 +19,7 @@
 
 try:
     from pytest import LineMatcher
-except ImportError:
+except ImportError:  # pragma: no cover
     # Older pytest
     from _pytest.pytester import LineMatcher
 
@@ -113,7 +113,7 @@ def _default_data(self) -> Optional[Dict[Any, Any]]:
         return None
 
     @property
-    def exitcode(self) -> int:
+    def exitcode(self) -> int:  # pragma: no cover
         """
         Return the process returncode.
 
@@ -129,7 +129,7 @@ def exitcode(self) -> int:
         return self.returncode
 
     @property
-    def json(self) -> Optional[Dict[Any, Any]]:
+    def json(self) -> Optional[Dict[Any, Any]]:  # pragma: no cover
         """
         Return the process output parsed as JSON, if possible.
 
@@ -195,7 +195,7 @@ def _get_cmdline(proc: psutil.Process) -> Optional[Any]:
         # and we use it in log calls
         try:
             cmdline = proc.cmdline()
-        except (psutil.NoSuchProcess, psutil.AccessDenied):
+        except (psutil.NoSuchProcess, psutil.AccessDenied):  # pragma: no cover
             # OSX is more restrictive about the above information
             cmdline = None
         except OSError:  # pragma: no cover
@@ -237,7 +237,7 @@ def _get_cmdline(proc: psutil.Process) -> Optional[Any]:
             # c: ... \lib\site-packages\psutil\_pswindows.py:806: RuntimeError
             cmdline = None
 
-        if not cmdline:
+        if not cmdline:  # pragma: no cover
             try:
                 cmdline = proc.as_dict()
             except psutil.NoSuchProcess: