Add focused confirmPaste coverage for clipboard validation and modal handoff

[Copilot]

confirmPaste had no test coverage despite being a user-facing clipboard entry point that validates payloads, shows errors, and routes into the paste confirmation flow. This change adds focused coverage for the success and failure paths that matter to paste behavior.

• Clipboard use-case coverage

  • Adds a dedicated test suite for createClipboardUseCases().confirmPaste
  • Verifies valid clipboard data is accepted and routed to the confirmation flow
  • Verifies empty clipboard state does not proceed and surfaces the expected error path
  • Verifies schema mismatch is rejected and does not open the modal path

• UI handoff verification

  • Mocks openPasteConfirmModal at the module boundary
  • Asserts the modal is opened with the parsed payload and the original confirmation callback
  • Confirms the callback ultimately receives the expected payload on the valid path

• Error-path assertions

  • Locks in the current incompatibility handling for invalid clipboard payloads
  • Ensures invalid data never reaches the paste handler

useCases.confirmPaste(itemSchema, onPasteConfirmed)

expect(openPasteConfirmModal).toHaveBeenCalledWith(payload, onPasteConfirmed)

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Original prompt

---

This section details on the original issue you should resolve

<issue_title>The confirmPaste use case lacks test coverage. This is a critical user-facing function that validates clipboard data and shows error messages. Add tests to verify:</issue_title>
<issue_description>reportedBy: github-copilot.v1/refine-github-issue

Task: Add tests for confirmPaste use-case (clipboard paste validation)

Title:
Add unit/integration tests for confirmPaste clipboard use-case

Description:
confirmPaste validates clipboard data, handles errors, and may open modals or show error messages. It currently lacks test coverage. Add tests that cover success and error paths, and verify UI interactions when appropriate.

Motivation:
confirmPaste is user-facing and critical for clipboard flows. Tests will prevent regressions and ensure error states are handled gracefully.

Acceptance Criteria:

• Test successful paste with valid payload: validation passes and expected handler is invoked (modal opened or payload processed).
• Test when clipboard is empty: correct error handling (toast/modal) and no modal open.
• Test schema validation failure: correct error handling and messages shown.
• Test that, on valid payload, the modal opens (or the expected UI path is followed) with the correct payload passed to the handler.
• Add necessary test utilities/mocks for clipboard and UI interactions.

Files / Scope:

• Tests should live near other clipboard use-case tests or in the relevant use-cases test suite.
• May require mocking clipboardUseCases and UI modal utilities.

Additional Context:

• Use existing test helpers and patterns used across the codebase for UI/modal assertions.
  </issue_description>

<agent_instructions>pnpm check always green</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes The confirmPaste use case lacks test coverage. This is a critical user-facing function that validates clipboard data and shows error messages. Add tests to verify: #1357

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Project	Deployment	Actions	Updated (UTC)
macroflows	Ready	Preview, Comment	Mar 25, 2026 0:44am

[Copilot]

Pull request overview

Adds targeted Vitest coverage for the clipboard confirmPaste use-case to prevent regressions in paste validation and modal handoff behavior.

Changes:

• Introduces a dedicated clipboardUseCases.confirmPaste test suite covering success, empty clipboard, and schema mismatch paths.
• Mocks openPasteConfirmModal at the module boundary and asserts correct arguments/handler wiring.
• Asserts the expected showError calls for invalid/empty clipboard scenarios.