Skip to content

test: improve unit test coverage for components in src/components and /services (target >90%)

Issue Summary

Improve unit test coverage for components in src/components/ directory.

Currently, the overall coverage is 79.93%, with some components having partial or no coverage. The goal is to increase coverage by adding comprehensive test cases for all components, especially those with low or missing coverage.

Problem Statement

  • Several components in src/components/ have low or incomplete test coverage:
    • HackdayProjectCard.tsx → 0% coverage
    • Initiatives.tsx → 91.07% (needs improvement)
    • Navbar.tsx → 94.49% (missing edge cases)
    • SummerCard.tsx → branches only 57.14%
  • Missing test scenarios:
    • Conditional rendering
    • Edge cases
    • User interactions
    • Branch coverage
  • Impact:
    • Reduces code reliability
    • Increases risk of bugs
    • Affects overall test coverage metrics

Proposed Solution

  • Create and enhance unit test files under:

    src/__tests__/components/

  • Add test cases for:

    • Rendering validation
    • Props handling
    • Conditional UI states
    • User interactions (clicks, navigation)
    • Edge cases and fallback states

  • Follow existing test patterns from:

    • Hero.test.tsx
    • Footer.test.tsx

Test-Driven Development

Acceptance Criteria (Given-When-Then)

Scenario 1: Component Rendering

Given the component is rendered When valid props are passed Then the component should display correct content

Scenario 2: Conditional Rendering

Given the component has conditional UI logic When specific conditions are met Then the correct UI elements should be displayed

Scenario 3: User Interaction

Given the component has interactive elements When the user performs an action (click/navigation) Then the expected behavior should occur

Test Cases

Test ID Test Description Precondition Test Steps Expected Result Priority
TC-001 Render component correctly Component loaded 1. Render2. Check UI Component displays properly High
TC-002 Validate props rendering Props provided 1. Pass props2. Verify UI Props reflected in UI High
TC-003 Test conditional rendering Condition exists 1. Trigger condition2. Verify UI Correct UI shown High
TC-004 Test user interaction Clickable elements 1. Click action2. Observe behavior Expected action triggered Medium
TC-005 Handle edge cases Empty/invalid data 1. Pass empty data Fallback UI shown Medium

Unit Test Requirements

Components/Functions to Test:

Module/Component Function/Hook Test Cases to Cover
HackdayProjectCard.tsx Render logic TC-001, TC-002, TC-005
Initiatives.tsx Conditional UI TC-001, TC-003
Navbar.tsx Navigation/interaction TC-001, TC-004
SummerCard.tsx Branch logic TC-001, TC-003, TC-005

Test Assertions Required:

  • Renders correctly with initial state
    • Handles user input correctly
    • Validates conditional rendering
    • Handles loading/empty states
    • Handles error/fallback states
    • Updates UI state appropriately

Implementation Details

Files to Change

File Path Action Purpose
src/components/*.tsx Modify Ensure testability
src/__tests__/components/*.test.tsx Create Add unit tests

Technical Considerations

  • Use Vitest + React Testing Library
  • Mock dependencies where needed
  • Ensure reusable test utilities
  • Improve branch coverage

UI/UX Requirements

  • Validate UI rendering consistency
  • Ensure accessibility (ARIA roles, labels)
  • Verify responsive behavior (if applicable)

Testing Strategy

Manual Testing

Test Environment:

  • Browser: Chrome
  • Viewport: Desktop
  • User Role: General user

Manual Test Steps:

  1. Render component
  2. Interact with UI elements
  3. Validate behavior

Automated Testing

Unit Tests:

  • Component render tests
    • User interaction tests
    • API integration tests
    • Error handling tests

Test Data Requirements

const mockTestData = { title: "Sample Project", description: "Test Description", };

Definition of Done

  • Acceptance criteria met
    • All test cases passing
    • Coverage improved to >90%
    • Code reviewed
    • No console errors
    • ESLint/Prettier passed

Additional Context

Notes

  • Focus on improving low coverage components first
  • Ensure consistency with existing test patterns
  • Avoid redundant test cases