Fix up coverage with async on Windows (#84917)

Fixes the coverage collection for Windows and async tasks. This ensures
the async task still has access to the PSHost so that it can access the
runspace debugger tasks on the host.

lib/ansible/executor/powershell/async_watchdog.ps1

@@ -4,6 +4,7 @@
 using namespace Microsoft.Win32.SafeHandles
 using namespace System.Collections
 using namespace System.IO
+using namespace System.Management.Automation
 using namespace System.Text
 using namespace System.Threading
 
@@ -43,6 +44,15 @@ param([ScriptBlock]$ScriptBlock, $Param)
         Param = $execInfo.Parameters
     })
 
+# It is important we run with the invocation settings so that it has access
+# to the same PSHost. The pipeline input also needs to be marked as complete
+# so the exec_wrapper isn't waiting for input indefinitely.
+$pipelineInput = [PSDataCollection[object]]::new()
+$pipelineInput.Complete()
+$invocationSettings = [PSInvocationSettings]@{
+    Host = $host
+}
+
 # Signals async_wrapper that we are ready to start the job and to stop waiting
 $waitHandle = [SafeWaitHandle]::new([IntPtr]$WaitHandleId, $true)
 $waitEvent = [ManualResetEvent]::new($false)
@@ -52,7 +62,7 @@ $null = $waitEvent.Set()
 $jobOutput = $null
 $jobError = $null
 try {
-    $jobAsyncResult = $ps.BeginInvoke()
+    $jobAsyncResult = $ps.BeginInvoke($pipelineInput, $invocationSettings, $null, $null)
     $jobAsyncResult.AsyncWaitHandle.WaitOne($Timeout * 1000) > $null
     $result.finished = 1
 

test/integration/targets/ansible-test-coverage-windows/ansible_collections/ns/col/plugins/module_utils/CollectionPwshCoverage.psm1

@@ -0,0 +1,9 @@
+Function Test-CollectionPwshCoverage {
+    <#
+    .SYNOPSIS
+    Test coverage for collection pwsh util.
+    #>
+    'foo'
+}
+
+Export-ModuleMember -Function Test-CollectionPwshCoverage

test/integration/targets/ansible-test-coverage-windows/ansible_collections/ns/col/plugins/modules/win_collection.ps1

@@ -1,6 +1,8 @@
 #!powershell
 
 #AnsibleRequires -CSharpUtil Ansible.Basic
+#AnsibleRequires -PowerShell ..module_utils.CollectionPwshCoverage
 
 $module = [Ansible.Basic.AnsibleModule]::Create($args, @{})
+$module.Result.util = Test-CollectionPwshCoverage
 $module.ExitJson()

test/integration/targets/ansible-test-coverage-windows/ansible_collections/ns/col/tests/integration/targets/win_collection/library/test_win_collection_become.ps1

@@ -0,0 +1,6 @@
+#!powershell
+
+#AnsibleRequires -CSharpUtil Ansible.Basic
+
+$module = [Ansible.Basic.AnsibleModule]::Create($args, @{})
+$module.ExitJson()

test/integration/targets/ansible-test-coverage-windows/ansible_collections/ns/col/tests/integration/targets/win_collection/library/test_win_collection_normal.ps1

@@ -0,0 +1,8 @@
+#!powershell
+
+#AnsibleRequires -CSharpUtil Ansible.Basic
+#AnsibleRequires -PowerShell Ansible.ModuleUtils.AdjacentPwshCoverage
+
+$module = [Ansible.Basic.AnsibleModule]::Create($args, @{})
+$module.Result.util = Test-AdjacentPwshCoverage
+$module.ExitJson()

test/integration/targets/ansible-test-coverage-windows/ansible_collections/ns/col/tests/integration/targets/win_collection/module_utils/Ansible.ModuleUtils.AdjacentPwshCoverage.psm1

@@ -0,0 +1,9 @@
+Function Test-AdjacentPwshCoverage {
+    <#
+    .SYNOPSIS
+    Test coverage for module_util adjacent pwsh util.
+    #>
+    'foo'
+}
+
+Export-ModuleMember -Function Test-AdjacentPwshCoverage

test/integration/targets/ansible-test-coverage-windows/ansible_collections/ns/col/tests/integration/targets/win_collection/tasks/main.yml

@@ -2,4 +2,21 @@
   win_collection:
 
 - name: run module in library adjacent to test coverage for test plugins
-  test_win_collection:
+  test_win_collection_normal:
+  register: library_result
+
+- name: assert run module with library adjacent module
+  assert:
+    that:
+    - library_result.util == 'foo'
+
+- name: test coverage under async
+  test_win_collection_async:
+  async: 30
+  poll: 2
+
+- name: test coverage under become
+  test_win_collection_become:
+  become: yes
+  become_method: runas
+  become_user: SYSTEM

test/integration/targets/ansible-test-coverage-windows/test-coverage.py

@@ -3,24 +3,42 @@ from __future__ import annotations
 import json
 import os
 import os.path
+import pathlib
 
 
 def main() -> None:
-    collection_root = os.getcwd()
+    collection_root = pathlib.Path(os.getcwd())
     print(f"Running windows-integration coverage test in '{collection_root}'")
 
-    result_path = os.path.join(collection_root, "tests", "output", "coverage", "coverage-powershell")
-    module_path = os.path.join(collection_root, "plugins", "modules", "win_collection.ps1")
-    test_path = os.path.join(collection_root, "tests", "integration", "targets", "win_collection", "library", "test_win_collection.ps1")
+    result_path = collection_root / "tests" / "output" / "coverage" / "coverage-powershell"
+    adjacent_modules_path = collection_root / "tests" / "integration" / "targets" / "win_collection" / "library"
+    adjacent_utils_path = collection_root / "tests" / "integration" / "targets" / "win_collection" / "module_utils"
+    collection_modules_path = collection_root / "plugins" / "modules"
+    collection_utils_path = collection_root / "plugins" / "module_utils"
+
+    expected_hits = {
+        str(adjacent_modules_path / 'test_win_collection_async.ps1'): {'5': 1, '6': 1},
+        str(adjacent_modules_path / 'test_win_collection_become.ps1'): {'5': 1, '6': 1},
+        str(adjacent_modules_path / 'test_win_collection_normal.ps1'): {'6': 1, '7': 1, '8': 1},
+        str(adjacent_utils_path / 'Ansible.ModuleUtils.AdjacentPwshCoverage.psm1'): {'6': 1, '9': 1},
+        str(collection_modules_path / 'win_collection.ps1'): {'6': 1, '7': 1, '8': 1},
+        str(collection_utils_path / 'CollectionPwshCoverage.psm1'): {'6': 1, '9': 1},
+    }
+    found_hits = set()
+
     with open(result_path, mode="rb") as fd:
         data = json.load(fd)
 
     for path, result in data.items():
         print(f"Testing result for path '{path}' -> {result!r}")
-        assert path in [module_path, test_path], f"Found unexpected coverage result path '{path}'"
-        assert result == {'5': 1, '6': 1}, "Coverage result did not pick up a hit on lines 5 and 6"
+        assert path in expected_hits, f"Found unexpected coverage result path '{path}'"
 
-    assert len(data) == 2, f"Expected coverage results for 2 files but got {len(data)}"
+        expected = expected_hits[path]
+        assert result == expected, f"Coverage result for {path} was {result!r} but was expecting {expected!r}"
+        found_hits.add(path)
+
+    missing_hits = set(expected_hits.keys()).difference(found_hits)
+    assert not missing_hits, f"Expected coverage results for {', '.join(missing_hits)} but they were not present"
 
 
 if __name__ == '__main__':