Test Organization

/**
 * Create a group/suite of specs
 * @param description - Descriptive name for the suite
 * @param specDefinitions - Function containing the specs and setup
 * @returns Suite object
 */
function describe(description: string, specDefinitions: () => void): Suite;

/**
 * Temporarily disable a suite (will be marked as pending)
 * @param description - Descriptive name for the suite
 * @param specDefinitions - Function containing the specs and setup
 * @returns Suite object
 */
function xdescribe(description: string, specDefinitions: () => void): Suite;

/**
 * Focus on this suite (only focused suites and specs will run)
 * @param description - Descriptive name for the suite
 * @param specDefinitions - Function containing the specs and setup
 * @returns Suite object
 */
function fdescribe(description: string, specDefinitions: () => void): Suite;

describe('User Authentication', () => {
  describe('when user is logged in', () => {
    it('should show dashboard', () => {
      // test implementation
    });
  });

  describe('when user is not logged in', () => {
    it('should redirect to login page', () => {
      // test implementation
    });
  });
});

// Temporarily skip a suite
xdescribe('Feature in development', () => {
  it('will not run', () => {
    // this won't execute
  });
});

// Focus on specific suite during development
fdescribe('Current feature being tested', () => {
  it('only this suite will run', () => {
    // only focused suites/specs execute
  });
});

/**
 * Define a single test/specification
 * @param description - Descriptive name for the test
 * @param testFunction - Optional function containing test logic
 * @param timeout - Optional timeout in milliseconds
 * @returns Spec object
 */
function it(description: string, testFunction?: () => void | Promise<void>, timeout?: number): Spec;

/**
 * Temporarily disable a spec (will be marked as pending)
 * @param description - Descriptive name for the test
 * @param testFunction - Optional function containing test logic
 * @returns Spec object
 */
function xit(description: string, testFunction?: () => void | Promise<void>): Spec;

/**
 * Focus on this spec (only focused suites and specs will run)
 * @param description - Descriptive name for the test
 * @param testFunction - Optional function containing test logic
 * @param timeout - Optional timeout in milliseconds
 * @returns Spec object
 */
function fit(description: string, testFunction?: () => void | Promise<void>, timeout?: number): Spec;

describe('Calculator', () => {
  it('should add two numbers', () => {
    const result = add(2, 3);
    expect(result).toEqual(5);
  });

  // Asynchronous test
  it('should fetch user data', async () => {
    const user = await fetchUser(123);
    expect(user.name).toBe('John');
  });

  // Test with custom timeout
  it('should handle slow operations', () => {
    // test logic
  }, 10000); // 10 second timeout

  // Pending test (no implementation yet)
  it('should handle edge case');

  // Temporarily disabled test
  xit('should work with legacy API', () => {
    // this won't run
  });

  // Focused test for development
  fit('should validate new feature', () => {
    // only this test will run
  });
});

/**
 * Run before each spec in the describe block
 * @param action - Function to execute before each spec
 * @param timeout - Optional timeout in milliseconds
 */
function beforeEach(action: () => void | Promise<void>, timeout?: number): void;

/**
 * Run after each spec in the describe block
 * @param action - Function to execute after each spec
 * @param timeout - Optional timeout in milliseconds
 */
function afterEach(action: () => void | Promise<void>, timeout?: number): void;

/**
 * Run once before all specs in the describe block
 * @param action - Function to execute before all specs
 * @param timeout - Optional timeout in milliseconds
 */
function beforeAll(action: () => void | Promise<void>, timeout?: number): void;

/**
 * Run once after all specs in the describe block
 * @param action - Function to execute after all specs
 * @param timeout - Optional timeout in milliseconds
 */
function afterAll(action: () => void | Promise<void>, timeout?: number): void;

describe('Database operations', () => {
  let database;

  beforeAll(async () => {
    // Setup shared resources once
    database = await connectToDatabase();
  });

  afterAll(async () => {
    // Cleanup shared resources
    await database.close();
  });

  beforeEach(() => {
    // Reset state before each test
    database.clearCache();
  });

  afterEach(() => {
    // Cleanup after each test
    database.rollbackTransaction();
  });

  it('should save user', async () => {
    const user = await database.save({ name: 'Alice' });
    expect(user.id).toBeDefined();
  });

  it('should find user', async () => {
    await database.save({ name: 'Bob' });
    const user = await database.findByName('Bob');
    expect(user).toBeDefined();
  });
});

/**
 * Mark the current spec as pending with an optional message
 * @param message - Optional reason for pending status
 */
function pending(message?: string): void;

/**
 * Explicitly fail the current spec with an error message
 * @param error - Error message or Error object
 */
function fail(error?: string | Error): void;

describe('Feature tests', () => {
  it('should implement complex feature', () => {
    if (!featureImplemented) {
      pending('Feature not yet implemented');
      return;
    }
    
    // test implementation
  });

  it('should validate input', () => {
    const input = getInput();
    
    if (!input) {
      fail('No input provided for test');
    }
    
    expect(validateInput(input)).toBe(true);
  });
});

/**
 * Set a user-defined property on the current spec result
 * @param key - Property name
 * @param value - Property value
 */
function setSpecProperty(key: string, value: any): void;

/**
 * Set a user-defined property on the current suite result
 * @param key - Property name
 * @param value - Property value
 */
function setSuiteProperty(key: string, value: any): void;

describe('Performance tests', () => {
  it('should complete within time limit', () => {
    const startTime = Date.now();
    
    performOperation();
    
    const duration = Date.now() - startTime;
    setSpecProperty('executionTime', duration);
    setSpecProperty('category', 'performance');
    
    expect(duration).toBeLessThan(1000);
  });
});

describe('API tests', () => {
  beforeAll(() => {
    setSuiteProperty('testEnvironment', 'staging');
    setSuiteProperty('apiVersion', '2.1');
  });

  it('should return user data', () => {
    // test implementation
  });
});

interface Suite {
  id: number;
  description: string;
  fullName: string;
  parentSuite?: Suite;
  children: (Suite | Spec)[];
  status?: 'disabled' | 'pending' | 'finished';
}

interface Spec {
  id: number;
  description: string;
  fullName: string;
  suite: Suite;
  result: SpecResult;
  status?: 'disabled' | 'pending' | 'started' | 'finished';
}

interface SpecResult {
  id: number;
  description: string;
  fullName: string;
  status: 'passed' | 'failed' | 'pending';
  pendingReason?: string;
  failedExpectations: ExpectationResult[];
  passedExpectations: ExpectationResult[];
  deprecationWarnings: ExpectationResult[];
  properties?: { [key: string]: any };
}