fix(tests): don't run PowerShell tests via WSL-interop powershell.exe

tests/test_check_prerequisites_paths_only.py

@@ -17,7 +17,7 @@
 CHECK_PREREQS_PS = PROJECT_ROOT / "scripts" / "powershell" / "check-prerequisites.ps1"
 
 HAS_PWSH = shutil.which("pwsh") is not None
-_POWERSHELL = shutil.which("powershell.exe") or shutil.which("powershell")
+_POWERSHELL = (shutil.which("powershell.exe") or shutil.which("powershell")) if os.name == "nt" else None
 
 
 def _install_bash_scripts(repo: Path) -> None:

tests/test_setup_plan_feature_json.py

@@ -18,7 +18,7 @@
 PLAN_TEMPLATE = PROJECT_ROOT / "templates" / "plan-template.md"
 
 HAS_PWSH = shutil.which("pwsh") is not None
-_POWERSHELL = shutil.which("powershell.exe") or shutil.which("powershell")
+_POWERSHELL = (shutil.which("powershell.exe") or shutil.which("powershell")) if os.name == "nt" else None
 
 
 def _install_bash_scripts(repo: Path) -> None:

tests/test_setup_plan_no_overwrite.py

@@ -18,7 +18,7 @@
 PLAN_TEMPLATE = PROJECT_ROOT / "templates" / "plan-template.md"
 
 HAS_PWSH = shutil.which("pwsh") is not None
-_POWERSHELL = shutil.which("powershell.exe") or shutil.which("powershell")
+_POWERSHELL = (shutil.which("powershell.exe") or shutil.which("powershell")) if os.name == "nt" else None
 
 
 def _install_bash_scripts(repo: Path) -> None:

tests/test_setup_tasks.py

@@ -20,7 +20,7 @@
 TASKS_TEMPLATE = PROJECT_ROOT / "templates" / "tasks-template.md"
 
 HAS_PWSH = shutil.which("pwsh") is not None
-_POWERSHELL = shutil.which("powershell.exe") or shutil.which("powershell")
+_POWERSHELL = (shutil.which("powershell.exe") or shutil.which("powershell")) if os.name == "nt" else None
 
 
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