test: add test cases for separator.tsx, sheet.tsx and sidebar.tsx

Issue Summary

Add comprehensive unit test cases for separator.tsx, sheet.tsx, and sidebar.tsx UI components to improve test coverage, validate UI behavior, and ensure accessibility compliance.

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Problem Statement

The UI components separator.tsx, sheet.tsx, and sidebar.tsx currently lack sufficient unit test coverage.

Issues:

• ❌ Separator rendering and orientation behavior not tested
• ❌ Sheet (modal/drawer-like) interactions not verified
• ❌ Sidebar toggle, layout, and navigation behavior untested
• ❌ Accessibility and keyboard interactions missing
• ❌ Edge cases and conditional rendering not covered

Impact:

• UI inconsistencies may go unnoticed
• Interaction bugs (open/close/sidebar toggle) can affect UX
• Reduced confidence during UI updates
• Lower overall test coverage

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Proposed Solution

• Add unit tests using Jest + React Testing Library

• Cover:

  • Rendering and structure
  • User interactions (open/close/toggle)
  • Conditional UI behavior
  • Accessibility roles and attributes

• Create test files:

  src/__tests__/separator.test.tsx
  src/__tests__/sheet.test.tsx
  src/__tests__/sidebar.test.tsx

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Test-Driven Development

Acceptance Criteria (Given-When-Then)

Scenario 1: Separator renders correctly

Given the Separator component is rendered
When no interaction is performed
Then the separator should be visible with correct orientation

Scenario 2: Sheet opens and closes

Given the Sheet is closed
When the user clicks the trigger
Then the sheet should open
When the close button or overlay is clicked
Then the sheet should close

Scenario 3: Sidebar toggles visibility

Given the Sidebar is rendered
When the toggle button is clicked
Then the sidebar should expand or collapse accordingly

Scenario 4: Accessibility behavior

Given the components are rendered
When accessed via keyboard navigation
Then they should respond correctly with proper ARIA roles

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Test Cases

Test ID	Test Description	Precondition	Test Steps	Expected Result	Priority
TC-001	Separator render	Component loaded	Render component	Separator visible	High
TC-002	Separator orientation	Component loaded	Pass vertical/horizontal prop	Correct orientation applied	High
TC-003	Sheet open	Closed state	Click trigger	Sheet opens	High
TC-004	Sheet close	Open state	Click close/overlay	Sheet closes	High
TC-005	Sidebar render	Component loaded	Render component	Sidebar visible	High
TC-006	Sidebar toggle	Sidebar loaded	Click toggle button	Sidebar expands/collapses	High
TC-007	Accessibility check	Component rendered	Use keyboard navigation	Proper behavior observed	Medium

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Unit Test Requirements

Components/Functions to Test:

Module/Component	Function/Hook	Test Cases to Cover
separator.tsx	rendering, orientation	TC-001, TC-002
sheet.tsx	open/close behavior	TC-003, TC-004
sidebar.tsx	toggle, layout behavior	TC-005, TC-006
All components	accessibility	TC-007

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Test Assertions Required:

• Renders correctly with initial state
• Handles user interactions (click/toggle)
• Applies correct styles and orientation
• Updates UI state appropriately
• Accessibility roles verified

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Implementation Details

Files to Change

File Path	Action	Purpose
src/components/ui/separator.tsx	Review	Ensure testability
src/components/ui/sheet.tsx	Review	Ensure interaction logic testable
src/components/ui/sidebar.tsx	Review	Ensure toggle behavior testable
src/__tests__/separator.test.tsx	Create	Separator tests
src/__tests__/sheet.test.tsx	Create	Sheet tests
src/__tests__/sidebar.test.tsx	Create	Sidebar tests

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Technical Considerations

• Use screen.getByRole() where applicable
• Use userEvent for realistic user interactions
• Mock external UI libraries if needed
• Avoid testing internal implementation details

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UI/UX Requirements

• Separator:

  • Displays correctly with orientation (horizontal/vertical)

• Sheet:

  • Opens as overlay/drawer
  • Closes via button, overlay, or Escape key

• Sidebar:

  • Toggles expand/collapse
  • Maintains layout consistency

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Testing Strategy

Manual Testing

Test Environment:

• Browser: Chrome
• Viewport: Desktop

Manual Test Steps:

1. Render separator → verify orientation
2. Open sheet → verify visibility → close
3. Toggle sidebar → verify expand/collapse

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Automated Testing

Unit Tests:

• Component render tests
• Interaction tests
• Accessibility tests

Integration Tests:

• Sidebar + sheet interaction (if applicable)

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Test Data Requirements

const mockTestData = {
  isOpen: false,
  orientation: "horizontal",
};

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Definition of Done

• Acceptance criteria met
• All test cases passing
• Unit tests added
• Coverage improved
• Code reviewed
• Accessibility checks passed
• No console errors
• TypeScript types defined

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Additional Context

Notes

• Focus is on UI behavior and interaction testing
• No functional/business logic changes
• Improves stability and prevents regressions

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