test: add test cases for audiovalidation.ts, audiorecordingservice.ts and auth.ts

Issue Summary

Add unit test coverage for audio validation, audio recording service, and authentication modules to ensure correctness, reliability, and error handling across core functionalities.

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Problem Statement

• Currently, audiovalidation.ts, audiorecordingservice.ts, and auth.ts lack sufficient test coverage.

• This leads to:

  • Increased risk of bugs in audio processing and authentication flows
  • Unverified edge cases (invalid inputs, API failures, permission issues)
  • Reduced confidence in production stability

• Affects:

  • Audio upload/recording features
  • User authentication and session handling

• Missing automated validation for:

  • Audio format/size checks
  • Recording lifecycle handling
  • Token-based authentication flows

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Proposed Solution

• Create unit tests for:

  • audiovalidation.ts → validate audio inputs and constraints
  • audiorecordingservice.ts → test recording lifecycle and error handling
  • auth.ts → test authentication logic, token handling, and API interactions

• Use mocking for:

  • Browser APIs (MediaRecorder, permissions)
  • API calls (login/auth endpoints)
  • localStorage/sessionStorage

• Ensure coverage includes:

  • Happy paths
  • Edge cases
  • Error handling scenarios

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Test-Driven Development

Acceptance Criteria (Given-When-Then)

Scenario 1: Validate audio file

Given a valid audio file with supported format and size
 When validation is triggered
 Then the file should pass validation

Scenario 2: Reject invalid audio file

Given an audio file with unsupported format or large size
 When validation is triggered
 Then an error should be returned

Scenario 3: Start audio recording

Given microphone permissions are granted
 When recording is started
 Then recording should begin successfully

Scenario 4: Handle recording errors

Given microphone access is denied
 When recording is initiated
 Then an appropriate error should be thrown

Scenario 5: Successful authentication

Given valid user credentials
 When login API is called
 Then a token should be returned and stored

Scenario 6: Authentication failure

Given invalid credentials
 When login API is called
 Then an error should be handled properly

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Test Cases

Test ID	Test Description	Precondition	Test Steps	Expected Result	Priority
TC-001	Validate correct audio file	Valid file	1. Pass file 2. Run validation	Validation passes	High
TC-002	Reject invalid audio format	Invalid format	1. Pass file 2. Validate	Error returned	High
TC-003	Reject oversized audio	Large file	1. Pass file 2. Validate	Error returned	High
TC-004	Start recording successfully	Permissions granted	1. Call startRecording	Recording starts	High
TC-005	Handle recording permission error	Permission denied	1. Call startRecording	Error handled	High
TC-006	Successful login	Valid credentials	1. Call login API	Token stored	High
TC-007	Failed login	Invalid credentials	1. Call login API	Error handled	High

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Unit Test Requirements

Components/Functions to Test:

Module/Component	Function/Hook	Test Cases to Cover
audiovalidation.ts	validateAudio	TC-001, TC-002, TC-003
audiorecordingservice.ts	startRecording, stopRecording	TC-004, TC-005
auth.ts	login, logout, token handling	TC-006, TC-007

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Test Assertions Required:

• Renders/executes correctly with initial state
• Handles input validation correctly
• Validates edge cases and errors
• Calls APIs with correct payload
• Handles success responses
• Handles error responses
• Updates state/storage appropriately

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Implementation Details

Files to Change

File Path	Action	Purpose
src/utils/audiovalidation.ts	Modify	Add validation logic (if needed)
src/services/audiorecordingservice.ts	Modify	Ensure testable recording logic
src/services/auth.ts	Modify	Improve testability
tests/src/utils/audiovalidation.test.ts	Create	Unit tests
tests/src/services/audiorecordingservice.test.ts	Create	Unit tests
tests/src/services/auth.test.ts	Create	Unit tests

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Technical Considerations

• Mock browser APIs like MediaRecorder and navigator.mediaDevices
• Mock fetch/API calls for authentication
• Use Jest/RTL for consistent testing approach
• Handle async operations properly with async/await

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UI/UX Requirements

Not applicable (no UI changes)

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Testing Strategy

Manual Testing

Test Environment:

• Browser: Chrome
• Viewport: Desktop
• User Role: Authenticated/Unauthenticated

Manual Test Steps:

1. Upload valid/invalid audio files
2. Test audio recording permissions
3. Perform login/logout with valid/invalid credentials

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Automated Testing

Unit Tests:

• Function execution tests
• Validation tests
• API interaction tests
• Error handling tests

Integration Tests (if applicable):

• Not required

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Test Data Requirements

const mockTestData = {
  validAudioFile: { type: "audio/mp3", size: 1024 },
  invalidAudioFile: { type: "text/plain", size: 99999999 },
  validUser: { username: "test", password: "1234" },
  invalidUser: { username: "test", password: "wrong" }
}

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Definition of Done

• Acceptance criteria met
• All test cases passing
• Unit tests written with good coverage
• Manual testing completed
• Code reviewed
• No console errors
• TypeScript types defined
• ESLint/Prettier checks pass

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Additional Context

Notes

• Focused on improving core service reliability through testing
• Ensures audio features and authentication flows are robust
• Helps prevent regressions in future changes