From 5efd27a83cbabdc716f096c1cc6fd069460f2f55 Mon Sep 17 00:00:00 2001
From: Athanasius <github@miggy.org>
Date: Fri, 30 Sep 2022 19:45:12 +0100
Subject: [PATCH] tests: Attempt to fix config/ coverage

* Define `darwin` and `linux` *and* "platform known" pragmas.
* Use per-platform pragmas in `config/__init__.py` selection of implementation.
* Attempt, and fail, to use pragma in `config/darwin.py` to ignore it on
  other platforms.
---
 config/__init__.py | 8 ++++----
 config/darwin.py   | 4 ++++
 pyproject.toml     | 5 +++++
 3 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/config/__init__.py b/config/__init__.py
index cc125129..6f5bfa12 100644
--- a/config/__init__.py
+++ b/config/__init__.py
@@ -454,19 +454,19 @@ def get_config(*args, **kwargs) -> AbstractConfig:
     :param kwargs: Args to be passed through to implementation.
     :return: Instance of the implementation.
     """
-    if sys.platform == "darwin":
+    if sys.platform == "darwin":  # pragma: sys-platform-not-darwin
         from .darwin import MacConfig
         return MacConfig(*args, **kwargs)
 
-    elif sys.platform == "win32":
+    elif sys.platform == "win32":  # pragma: sys-platform-not-win32
         from .windows import WinConfig
         return WinConfig(*args, **kwargs)
 
-    elif sys.platform == "linux":
+    elif sys.platform == "linux":  # pragma: sys-platform-not-linux
         from .linux import LinuxConfig
         return LinuxConfig(*args, **kwargs)
 
-    else:
+    else:  # pragma: sys-platform-known
         raise ValueError(f'Unknown platform: {sys.platform=}')
 
 
diff --git a/config/darwin.py b/config/darwin.py
index eb2b887f..a492b8a1 100644
--- a/config/darwin.py
+++ b/config/darwin.py
@@ -1,3 +1,7 @@
+"""Darwin/macOS implementation of AbstractConfig."""
+# This doesn't actually work:
+# <https://github.com/wemake-services/coverage-conditional-plugin/issues/2#issuecomment-1263899795>
+# pragma: sys-platform-not-darwin
 import pathlib
 import sys
 from typing import Any, Dict, List, Union
diff --git a/pyproject.toml b/pyproject.toml
index 387f00c7..bf2fcc52 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,6 +17,11 @@ plugins = [ "coverage_conditional_plugin" ]
 [tool.coverage.coverage_conditional_plugin.rules]
 sys-platform-win32 = "sys_platform == 'win32'"
 sys-platform-not-win32 = "sys_platform != 'win32'"
+sys-platform-darwin = "sys_platform == 'darwin'"
+sys-platform-not-darwin = "sys_platform != 'darwin'"
+sys-platform-linux = "sys_platform == 'linux'"
+sys-platform-not-linux = "sys_platform != 'linux'"
+sys-platform-known = "sys_platform in ('darwin', 'linux', 'win32')"
 
 [tool.pyright]
 # pythonPlatform = 'Darwin'