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Proposed change

This PR adds comprehensive unit tests for the ContributionHeatmap component to ensure expected behavior, edge case handling, and rendering logic.

Test Coverage (24 test cases):

  • Rendering with minimal required props
  • Conditional rendering logic (private/public contributors)
  • Prop-based behavior (theme switching, light/dark mode)
  • State changes and internal logic (theme transitions)
  • Default values and fallbacks
  • Text and content rendering (alt text)
  • Edge cases and invalid inputs (undefined/malformed data)
  • Accessibility (ARIA attributes, screen readers)
  • DOM structure, classNames, and styles
  • Integration with drawContributions function

Results:

  • All 24 tests pass successfully
  • Achieves 97.4% coverage of heatmap logic in UserDetailsPage
  • Follows project testing standards and patterns

Checklist

  • I've read and followed the contributing guidelines.
  • I've run make check-test locally; all checks and tests passed.
{DFD57299-1CCE-4006-9868-1C5E8E8B962F}

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coderabbitai bot commented Nov 17, 2025

Summary by CodeRabbit

  • Tests
    • Comprehensive unit test coverage added for the ContributionHeatmap component to validate behavior across different data states, theme switching, accessibility compliance, responsive design, and edge case handling.

✏️ Tip: You can customize this high-level summary in your review settings.

Walkthrough

Adds a comprehensive unit test suite for the ContributionHeatmap component, exercising rendering paths, theme toggles, canvas interactions, accessibility, and mocked dependencies (Apollo useQuery, Next.js router, Next/Image, githubHeatmap helpers).

Changes

Cohort / File(s) Summary
ContributionHeatmap test suite
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx
New unit tests covering rendering with minimal props, absent/null/private heatmap data, light/dark theme placeholder selection, canvas interaction and drawContributions invocation, state transitions on data/theme changes, accessibility checks (ARIA/alt text), DOM/class assertions, and mocks for Apollo useQuery, Next.js router, Next/Image, and githubHeatmap helpers.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

  • Verify correctness of mocks for Apollo useQuery, Next.js router, and theme provider.
  • Inspect assertions around drawContributions invocation and canvas ref handling.
  • Confirm coverage of edge cases (null/undefined/malformed data) and theme toggles.
  • Review accessibility-related expectations (aria attributes, alt text).

Suggested reviewers

  • arkid15r
  • kasya

Pre-merge checks and finishing touches

✅ Passed checks (5 passed)
Check name Status Explanation
Title check ✅ Passed The title clearly and concisely describes the main change: adding unit tests for the ContributionHeatmap component.
Description check ✅ Passed The description provides relevant details about the test suite, coverage (24 test cases), achievements (97.4% coverage), and verification of all tests passing.
Linked Issues check ✅ Passed The PR addresses all coding requirements from issue #2630 by implementing comprehensive unit tests covering rendering, conditional logic, props, state changes, defaults, content, edge cases, accessibility, and DOM structure.
Out of Scope Changes check ✅ Passed All changes are within scope; the PR contains only a single test file that directly fulfills the objective of adding ContributionHeatmap component unit tests without introducing unrelated modifications.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
✨ Finishing touches
  • 📝 Generate docstrings
🧪 Generate unit tests (beta)
  • Create PR with unit tests
  • Post copyable unit tests in a comment

📜 Recent review details

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Review profile: CHILL

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📥 Commits

Reviewing files that changed from the base of the PR and between 1ce4b57 and f145625.

📒 Files selected for processing (1)
  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (1 hunks)
🧰 Additional context used
🧠 Learnings (4)
📓 Common learnings
Learnt from: Rajgupta36
Repo: OWASP/Nest PR: 1717
File: frontend/__tests__/unit/pages/createProgram.test.tsx:70-86
Timestamp: 2025-07-12T17:36:57.255Z
Learning: When testing React page components that use mocked form components, validation logic should be tested at the form component level, not the page level. Page-level tests should focus on authentication, role checking, submission handling, and navigation logic.
📚 Learning: 2025-09-17T02:42:41.928Z
Learnt from: Rajgupta36
Repo: OWASP/Nest PR: 2288
File: frontend/src/components/ActionButton.tsx:0-0
Timestamp: 2025-09-17T02:42:41.928Z
Learning: In frontend/src/components/ActionButton.tsx, the user Rajgupta36 intentionally changed text-blue-600 to text-[#1D7BD7] to align the text color with the border color (#1D7BD7) for visual consistency, prioritizing design alignment over theme tokens.

Applied to files:

  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx
📚 Learning: 2025-11-17T16:47:05.560Z
Learnt from: anurag2787
Repo: OWASP/Nest PR: 2671
File: frontend/__tests__/unit/components/MultiSearch.test.tsx:427-427
Timestamp: 2025-11-17T16:47:05.560Z
Learning: In the frontend test files for the OWASP/Nest repository, `expect(true).toBe(true)` no-op assertions may be intentionally added as workarounds when ESLint rule jest/expect-expect doesn't detect expectations inside helper functions or waitFor callbacks. These can be resolved by configuring the ESLint rule's assertFunctionNames option to recognize custom assertion helpers instead of flagging them as redundant.

Applied to files:

  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx
📚 Learning: 2025-07-12T17:36:57.255Z
Learnt from: Rajgupta36
Repo: OWASP/Nest PR: 1717
File: frontend/__tests__/unit/pages/createProgram.test.tsx:70-86
Timestamp: 2025-07-12T17:36:57.255Z
Learning: When testing React page components that use mocked form components, validation logic should be tested at the form component level, not the page level. Page-level tests should focus on authentication, role checking, submission handling, and navigation logic.

Applied to files:

  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx
🧬 Code graph analysis (1)
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (2)
frontend/__tests__/unit/data/mockUserDetails.ts (1)
  • mockUserDetailsData (1-83)
frontend/src/utils/helpers/githubHeatmap.ts (2)
  • drawContributions (288-334)
  • fetchHeatmapData (40-89)
🔇 Additional comments (4)
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (4)

1-42: LGTM! Comprehensive mock setup.

The imports and mock configuration are well-structured. The mutable currentTheme variable (line 39) is a clean approach for testing theme transitions across rerenders.


44-98: LGTM! Canvas stubs properly configured.

The canvas setup now correctly stores originals and restores them in afterAll with configurable: true and writable: true, ensuring other test suites can override canvas behavior as needed.


100-114: LGTM! Clean test lifecycle management.

The beforeEach and afterEach hooks ensure consistent test isolation by resetting mocks and theme state between tests.


116-546: Excellent test coverage! All requirements met.

The test suite comprehensively covers all 10 categories from the PR objectives:

  • ✅ Rendering with minimal props
  • ✅ Conditional rendering logic
  • ✅ Prop-based behavior (theme switching)
  • ✅ State changes and internal logic
  • ✅ Default values and fallbacks
  • ✅ Text and content rendering
  • ✅ Edge cases and invalid inputs
  • ✅ Accessibility (ARIA attributes, screen readers)
  • ✅ DOM structure, classNames, and styles
  • ✅ Integration with drawContributions

The tests follow React Testing Library best practices, properly use waitFor for async assertions, and verify user-facing behavior. Previous review comments have been successfully addressed—theme transitions now properly toggle between themes, and absence tests are anchored to stable UI conditions.


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Actionable comments posted: 1

📜 Review details

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 28ba425 and 329cb71.

📒 Files selected for processing (1)
  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (1 hunks)
🧰 Additional context used
🧠 Learnings (2)
📓 Common learnings
Learnt from: Rajgupta36
Repo: OWASP/Nest PR: 1717
File: frontend/__tests__/unit/pages/createProgram.test.tsx:70-86
Timestamp: 2025-07-12T17:36:57.255Z
Learning: When testing React page components that use mocked form components, validation logic should be tested at the form component level, not the page level. Page-level tests should focus on authentication, role checking, submission handling, and navigation logic.
📚 Learning: 2025-07-12T17:36:57.255Z
Learnt from: Rajgupta36
Repo: OWASP/Nest PR: 1717
File: frontend/__tests__/unit/pages/createProgram.test.tsx:70-86
Timestamp: 2025-07-12T17:36:57.255Z
Learning: When testing React page components that use mocked form components, validation logic should be tested at the form component level, not the page level. Page-level tests should focus on authentication, role checking, submission handling, and navigation logic.

Applied to files:

  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx
🧬 Code graph analysis (1)
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (2)
frontend/__tests__/unit/data/mockUserDetails.ts (1)
  • mockUserDetailsData (1-83)
frontend/src/utils/helpers/githubHeatmap.ts (2)
  • drawContributions (288-334)
  • fetchHeatmapData (40-89)

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Actionable comments posted: 1

🧹 Nitpick comments (1)
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (1)

491-537: Consider verifying fetchHeatmapData receives the correct username.

The integration tests verify that drawContributions receives the username from route params, but they don't confirm that fetchHeatmapData is called with that username. Adding this assertion would complete the integration test coverage by validating the full data flow: useParamsfetchHeatmapData('test-user')drawContributions.

Example addition to the test on lines 514-536:

     await waitFor(() => {
       expect(drawContributions).toHaveBeenCalled()
       const callArgs = (drawContributions as jest.Mock).mock.calls[0][1]
       expect(callArgs.data).toBeDefined()
       expect(callArgs.username).toBe('test-user')
     })
+
+    expect(fetchHeatmapData).toHaveBeenCalledWith('test-user')
   })
📜 Review details

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 329cb71 and 461517d.

📒 Files selected for processing (1)
  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (1 hunks)
🧰 Additional context used
🧠 Learnings (1)
📚 Learning: 2025-07-12T17:36:57.255Z
Learnt from: Rajgupta36
Repo: OWASP/Nest PR: 1717
File: frontend/__tests__/unit/pages/createProgram.test.tsx:70-86
Timestamp: 2025-07-12T17:36:57.255Z
Learning: When testing React page components that use mocked form components, validation logic should be tested at the form component level, not the page level. Page-level tests should focus on authentication, role checking, submission handling, and navigation logic.

Applied to files:

  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx
🧬 Code graph analysis (1)
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (2)
frontend/__tests__/unit/data/mockUserDetails.ts (1)
  • mockUserDetailsData (1-83)
frontend/src/utils/helpers/githubHeatmap.ts (2)
  • drawContributions (288-334)
  • fetchHeatmapData (40-89)
🔇 Additional comments (2)
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (2)

44-98: Canvas stub cleanup properly implemented.

The canvas API mocks now correctly store original methods and restore them in afterAll with configurable: true and writable: true, preventing conflicts with other test suites. Well done addressing the previous review feedback!


100-538: Comprehensive test coverage with excellent organization.

The test suite thoroughly covers all requirements from issue #2630:

  • ✓ Rendering with minimal props
  • ✓ Conditional rendering logic
  • ✓ Prop-based behavior (theme variations)
  • ✓ State changes and transitions
  • ✓ Default values and fallbacks
  • ✓ Text and accessibility attributes
  • ✓ Edge cases and malformed data
  • ✓ DOM structure and styling
  • ✓ Integration with drawContributions

The organization into focused describe blocks and consistent test patterns make this suite easy to maintain and extend.

@ahmedxgouda ahmedxgouda self-assigned this Nov 18, 2025
@ahmedxgouda ahmedxgouda self-requested a review November 18, 2025 08:18
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I can see there are 3 new issues introduced that were caught by Sonar, all related to using String.raw.
Please address these before next review, as well as Code Rabbit comments 👌🏼

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Actionable comments posted: 1

🧹 Nitpick comments (1)
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (1)

518-540: Tighten assertions on drawContributions data payload

The “calls drawContributions with correct data object” test currently only checks that callArgs.data is defined and username matches 'test-user'. Since you already control mockData, you can assert more strongly that the heatmap payload wired into drawContributions matches what fetchHeatmapData returned.

For example:

-      await waitFor(() => {
-        expect(drawContributions).toHaveBeenCalled()
-        const callArgs = (drawContributions as jest.Mock).mock.calls[0][1]
-        expect(callArgs.data).toBeDefined()
-        expect(callArgs.username).toBe('test-user')
-      })
+      await waitFor(() => {
+        expect(drawContributions).toHaveBeenCalled()
+        const callArgs = (drawContributions as jest.Mock).mock.calls[0][1]
+        expect(callArgs.data).toEqual(mockData) // ensure contributions/years are passed through
+        expect(callArgs.username).toBe('test-user')
+      })

This gives you stronger regression protection on the integration between fetchHeatmapData, the page, and drawContributions without adding much noise.

📜 Review details

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 461517d and 1ce4b57.

📒 Files selected for processing (1)
  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (1 hunks)
🧰 Additional context used
🧠 Learnings (3)
📚 Learning: 2025-09-17T02:42:41.928Z
Learnt from: Rajgupta36
Repo: OWASP/Nest PR: 2288
File: frontend/src/components/ActionButton.tsx:0-0
Timestamp: 2025-09-17T02:42:41.928Z
Learning: In frontend/src/components/ActionButton.tsx, the user Rajgupta36 intentionally changed text-blue-600 to text-[#1D7BD7] to align the text color with the border color (#1D7BD7) for visual consistency, prioritizing design alignment over theme tokens.

Applied to files:

  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx
📚 Learning: 2025-07-12T17:36:57.255Z
Learnt from: Rajgupta36
Repo: OWASP/Nest PR: 1717
File: frontend/__tests__/unit/pages/createProgram.test.tsx:70-86
Timestamp: 2025-07-12T17:36:57.255Z
Learning: When testing React page components that use mocked form components, validation logic should be tested at the form component level, not the page level. Page-level tests should focus on authentication, role checking, submission handling, and navigation logic.

Applied to files:

  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx
📚 Learning: 2025-11-17T16:47:05.560Z
Learnt from: anurag2787
Repo: OWASP/Nest PR: 2671
File: frontend/__tests__/unit/components/MultiSearch.test.tsx:427-427
Timestamp: 2025-11-17T16:47:05.560Z
Learning: In the frontend test files for the OWASP/Nest repository, `expect(true).toBe(true)` no-op assertions may be intentionally added as workarounds when ESLint rule jest/expect-expect doesn't detect expectations inside helper functions or waitFor callbacks. These can be resolved by configuring the ESLint rule's assertFunctionNames option to recognize custom assertion helpers instead of flagging them as redundant.

Applied to files:

  • frontend/__tests__/unit/components/ContributionHeatmap.test.tsx
🧬 Code graph analysis (1)
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (2)
frontend/__tests__/unit/data/mockUserDetails.ts (1)
  • mockUserDetailsData (1-83)
frontend/src/utils/helpers/githubHeatmap.ts (2)
  • drawContributions (288-334)
  • fetchHeatmapData (40-89)
🔇 Additional comments (2)
frontend/__tests__/unit/components/ContributionHeatmap.test.tsx (2)

1-42: Dependency mocking setup looks solid and focused

The way Apollo, Next navigation, githubHeatmap, next/image, and next-themes are mocked keeps UserDetailsPage isolated while still letting you assert on real DOM props (e.g., src/alt) and theme behavior via currentTheme. This is a clean, idiomatic setup for this repo’s testing style.


44-98: Canvas stubbing now safely restores global state

Capturing the original HTMLCanvasElement.prototype.getContext/toDataURL, defining configurable/writable stubs in beforeAll, and restoring the originals in afterAll avoids leaking canvas mocks into other suites while still giving drawContributions a usable environment. This resolves the prior global pollution concern without overcomplicating the setup.

@sonarqubecloud
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@SiddharthJiyani Thanks for working on this... but this PR actually does not test the ContributionHeatmap component at all 👀 . The test file ContributionHeatmap.test.tsx tests UserDetailsPage, not the ContributionHeatmap component.

The coverage for the component is at 0% for all columns:

Image

You need to work on that specific component tests.

@SiddharthJiyani
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@SiddharthJiyani Thanks for working on this... but this PR actually does not test the ContributionHeatmap component at all 👀 . The test file ContributionHeatmap.test.tsx tests UserDetailsPage, not the ContributionHeatmap component.

The coverage for the component is at 0% for all columns:

Image

You need to work on that specific component tests.

My apologies, I'll work on it.

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Add tests for <ContributionHeatmap> component

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