SSH MCP Server

/** * Simple Integration Tests for Story 06: Dynamic Expected Value Construction * Focus on basic functionality without complex command execution * * This validates core acceptance criteria with minimal external dependencies */ import * as os from 'os'; import { DynamicExpectedValueConstructor } from './dynamic-expected-value-constructor'; import './jest-matchers'; // Load custom matchers describe('Story 06: Dynamic Expected Value Construction - Simple Integration', () => { let constructor: DynamicExpectedValueConstructor; beforeAll(() => { constructor = new DynamicExpectedValueConstructor(); }); describe('AC 6.1: Dynamic username value construction', () => { it('should dynamically resolve username', async () => { const template = '${USER}'; const result = await constructor.resolveTemplate(template); const expectedUser = process.env.USER || os.userInfo().username; expect(result).toBe(expectedUser); }); it('should work in command context', async () => { const template = 'Current user: ${USER}'; const result = await constructor.resolveTemplate(template); const expectedUser = process.env.USER || os.userInfo().username; expect(result).toBe(`Current user: ${expectedUser}`); }); }); describe('AC 6.2: Dynamic working directory value construction', () => { it('should dynamically resolve working directory', async () => { const template = '${PWD}'; const result = await constructor.resolveTemplate(template); expect(result).toBe(process.cwd()); }); it('should work in path context', async () => { const template = 'Directory: ${PWD}'; const result = await constructor.resolveTemplate(template); expect(result).toBe(`Directory: ${process.cwd()}`); }); }); describe('AC 6.3: Dynamic hostname value construction', () => { it('should dynamically resolve hostname', async () => { const template = '${HOSTNAME}'; const result = await constructor.resolveTemplate(template); expect(result).toBe(os.hostname()); }); it('should work in full prompt context', async () => { const template = '[${USER}@${HOSTNAME} ${PWD}]$ '; const result = await constructor.resolveTemplate(template); const expectedUser = process.env.USER || os.userInfo().username; const expectedResult = `[${expectedUser}@${os.hostname()} ${process.cwd()}]$ `; expect(result).toBe(expectedResult); }); }); describe('AC 6.4: Environment value caching', () => { it('should provide cached environment values', async () => { const values = await constructor.getEnvironmentValues(); expect(values).toHaveProperty('USER'); expect(values).toHaveProperty('PWD'); expect(values).toHaveProperty('HOSTNAME'); expect(values).toHaveProperty('HOME'); expect(values.USER).toBe(process.env.USER || os.userInfo().username); }); it('should support cache invalidation', () => { expect(() => constructor.invalidateCache()).not.toThrow(); }); }); describe('AC 6.5: Multiple variable substitution', () => { it('should substitute multiple variables in one template', async () => { const template = 'User: ${USER}, Host: ${HOSTNAME}, Dir: ${PWD}'; const result = await constructor.resolveTemplate(template); const expectedUser = process.env.USER || os.userInfo().username; const expected = `User: ${expectedUser}, Host: ${os.hostname()}, Dir: ${process.cwd()}`; expect(result).toBe(expected); }); it('should handle templates with no variables', async () => { const template = 'No variables here'; const result = await constructor.resolveTemplate(template); expect(result).toBe('No variables here'); }); }); describe('AC 6.7: Volatile pattern creation', () => { it('should create regex pattern for timestamps', () => { const pattern = constructor.createVolatilePattern('timestamp'); expect(pattern).toBeInstanceOf(RegExp); expect(pattern.test('1703505600')).toBe(true); expect(pattern.test('1703505600000')).toBe(true); expect(pattern.test('abc')).toBe(false); }); it('should create regex pattern for dates', () => { const pattern = constructor.createVolatilePattern('date'); expect(pattern).toBeInstanceOf(RegExp); expect(pattern.test('Mon Dec 25 10:30:45 UTC 2023')).toBe(true); expect(pattern.test('Fri Jan 1 00:00:00 EST 2024')).toBe(true); expect(pattern.test('invalid date')).toBe(false); }); it('should create regex pattern for process IDs', () => { const pattern = constructor.createVolatilePattern('pid'); expect(pattern).toBeInstanceOf(RegExp); expect(pattern.test('1234')).toBe(true); expect(pattern.test('99999')).toBe(true); expect(pattern.test('abc')).toBe(false); }); }); describe('AC 6.13: Jest matcher integration', () => { it('should work with toMatchDynamicTemplate matcher', async () => { const actualOutput = process.env.USER || os.userInfo().username; const template = '${USER}'; expect(actualOutput).toMatchDynamicTemplate(template); }); it('should work with complex template matching', async () => { const expectedUser = process.env.USER || os.userInfo().username; const expectedHost = os.hostname(); const actualOutput = `${expectedUser}@${expectedHost}`; const template = '${USER}@${HOSTNAME}'; expect(actualOutput).toMatchDynamicTemplate(template); }); it('should validate that non-matching templates fail appropriately', async () => { // This test documents that the matcher provides detailed error messages // The actual error handling is demonstrated in the test output const actualOutput = process.env.USER || require('os').userInfo().username; const template = '${USER}'; // This should pass expect(actualOutput).toMatchDynamicTemplate(template); // Test that template matching works correctly expect('test_value').not.toMatchDynamicTemplate('${HOSTNAME}'); }); }); describe('Error handling', () => { it('should handle unknown variables gracefully', async () => { const template = '${UNKNOWN_VARIABLE}'; await expect(constructor.resolveTemplate(template)) .rejects.toThrow('Unknown template variable'); }); it('should handle invalid template syntax', async () => { const template = '${INVALID_SYNTAX'; await expect(constructor.resolveTemplate(template)) .rejects.toThrow('Invalid template syntax'); }); it('should handle empty templates', async () => { const template = ''; const result = await constructor.resolveTemplate(template); expect(result).toBe(''); }); }); describe('Cross-platform compatibility', () => { it('should provide consistent results across environments', async () => { const template = '${USER}@${HOSTNAME}:${PWD}'; const result = await constructor.resolveTemplate(template); expect(typeof result).toBe('string'); expect(result.length).toBeGreaterThan(0); expect(result).toContain('@'); expect(result).toContain(':'); }); it('should handle path separators correctly', async () => { const template = '${PWD}'; const result = await constructor.resolveTemplate(template); expect(result).toBe(process.cwd()); // Should work on both Unix and Windows paths }); }); });