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🧪 Add comprehensive unit tests for SearchForm component#110

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is0692vs wants to merge 4 commits intomainfrom
test/search-form-4018356914563523361
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🧪 Add comprehensive unit tests for SearchForm component#110
is0692vs wants to merge 4 commits intomainfrom
test/search-form-4018356914563523361

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🎯 What: The SearchForm component lacked unit tests, leaving critical user interaction (searching for GitHub users) unverified.
📊 Coverage: This PR adds src/components/SearchForm.test.tsx utilizing @testing-library/react and vitest. The test suite now covers:

  • Form rendering (input and submit button).
  • State updates when typing in the input.
  • Form submission logic and conditional disabling of the search button for empty inputs.
  • Ensuring whitespace-only submissions are prevented.
  • Verification that the username is trimmed and URI encoded properly before calling router.push.
  • Simulating the React useTransition loading state where the button becomes disabled and displays "Loading...".
    Result: Enhanced test coverage and reliability for user search workflows. Improved testing confidence by mocking next/navigation and React hooks effectively.

PR created automatically by Jules for task 4018356914563523361 started by @is0692vs

Co-authored-by: is0692vs <135803462+is0692vs@users.noreply.github.com>
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vercel bot commented Mar 27, 2026

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github-user-summary Ready Ready Preview, Comment Mar 27, 2026 7:09pm

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Code Review

This pull request introduces a comprehensive suite of unit tests for the SearchForm component using Vitest and React Testing Library. The new tests cover form rendering, input state management, conditional button disabling, and submission logic including URI encoding. Feedback suggests enhancing the test suite by explicitly verifying that whitespace-only input correctly keeps the search button disabled, ensuring more robust validation of the component's behavior.

Comment on lines +53 to +60
it("enables the search button when input has text", () => {
render(<SearchForm />);
const input = screen.getByPlaceholderText("GitHub username");
const button = screen.getByRole("button", { name: "Search" }) as HTMLButtonElement;

fireEvent.change(input, { target: { value: "johndoe" } });
expect(button.disabled).toBe(false);
});
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medium

This test can be made more robust by also checking the whitespace-only case. This ensures the button's disabled state correctly handles inputs that are technically not empty but should be treated as such. The test title should also be updated to reflect this.

  it("enables the search button only when input has non-whitespace text", () => {
    render(<SearchForm />);
    const input = screen.getByPlaceholderText("GitHub username");
    const button = screen.getByRole("button", { name: "Search" }) as HTMLButtonElement;

    // Test that the button remains disabled for whitespace-only input
    fireEvent.change(input, { target: { value: "   " } });
    expect(button.disabled).toBe(true);

    // Test that the button becomes enabled for valid text
    fireEvent.change(input, { target: { value: "johndoe" } });
    expect(button.disabled).toBe(false);
  });

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📒 Files selected for processing (2)
  • pr_description.md
  • src/components/SearchForm.test.tsx
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@is0692vs
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Updated to explicitly assert whitespace-only input keeps the Search button disabled, and adjusted the mocked typing for lint compliance (commit ). Added ❤️ reaction and resolved the addressed thread.

Co-authored-by: is0692vs <135803462+is0692vs@users.noreply.github.com>
Ensure button state test explicitly verifies whitespace-only input remains disabled before valid input enables submission.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Deployment failed with the following error:

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