feat(TA0002): report actions invoked on a directly opened part test page

[Arthurvdv]

Why

A test that opens a ListPart or CardPart page directly through its own TestPage variable and then invokes an action on it fails at runtime with "The action with ID = xxx is not found on the page." A part page opened on its own renders no actions (same in the client), so the test framework cannot find them. The working pattern is to reach the action through the part control of the hosting page (HostPage.SubPagePart.MyAction.Invoke()). Discussion: #455

What

New TestAutomationCop rule TA0002 InvokeActionOnPartTestPage (Warning, Usage, enabled by default).

Reports Invoke(), Enabled() and Visible() on an action of a TestPage variable whose target page has PageType = ListPart or CardPart.

Message (3 placeholders): Action '{0}' cannot be invoked on page '{1}' opened directly because its PageType is {2}; invoke it through the part control of the hosting page instead.

EnumProvider additions: NavTypeKind.TestPage, PageTypeKind.CardPart (both exist at the ns2.0 12.0 floor).

Deliberate non-reports

• Actions reached through a part control (MainPage.SubPagePart.MyAction.Invoke()) — receiver is TestPart, not TestPage
• Field access, OpenView/OpenEdit/OpenNew and other TestPage built-ins
• Built-in actions OK/Cancel/Yes/No/View/Edit — SubPage.OK().Invoke() has an invocation as the outer Instance, not an ITestActionAccess
• HeadlinePart and every other PageType not confirmed to fail
• TestRequestPage — RequestPageTypeSymbol is IPageBaseTypeSymbol but not IPageTypeSymbol

Obsolete test code is not exempt: the test runner still executes an obsolete test method or codeunit, so the failure is real. The call is identified by its ITestActionAccess receiver alone; the built-in TestAction class has exactly Invoke, Enabled and Visible.

Test notes

19 tests total: 9 HasDiagnostic, 10 NoDiagnostic — all pass.

Regression-first evidence (stub analyzer with no registration):

• All 9 HasDiagnostic cases failed with There is no issue reported for TA0002 at [...]
• 9 of 10 NoDiagnostic cases passed (TestRequestPage initially had a compile error, fixed to use RequestPageHandler parameter syntax)

Verification:

• dotnet build ALCops.sln — 0 errors
• dotnet test src/ALCops.TestAutomationCop.Test/ --filter "FullyQualifiedName~InvokeActionOnPartTestPage" — 19 passed
• dotnet test src/ALCops.Common.Test/ — 159 passed
• dotnet format ALCops.sln --verify-no-changes — exit 0
• Three-TFM Release builds (TestAutomationCop, Common) — 0 errors, 0 warnings

Docs companion: ALCops/alcops.dev#187

Resolves #455

🤖 Generated with Claude Code