SSH MCP Server

/** * Focused Echo Duplication Test - TDD Implementation * * CRITICAL: This test reproduces the echo duplication issue with minimal setup * to understand the exact nature of the problem */ import { JestTestUtilities } from './integration/terminal-history-framework/jest-test-utilities'; describe('Echo Duplication Focused Test', () => { let testUtils: JestTestUtilities; beforeEach(async () => { testUtils = new JestTestUtilities({ enableDetailedLogging: false, enableErrorDiagnostics: true, testTimeout: 60000 }); await testUtils.setupTest('echo-duplication-focused'); }); afterEach(async () => { await testUtils.cleanupTest(); }); test('should reproduce echo duplication with single command', async () => { const sessionName = 'echo-test-single'; const testCommand = 'pwd'; const testConfig = { preWebSocketCommands: [ `ssh_connect {"name": "${sessionName}", "host": "localhost", "username": "jsbattig", "keyFilePath": "/home/jsbattig/.ssh/id_ed25519"}` ], postWebSocketCommands: [ { initiator: 'browser' as const, command: testCommand } ], workflowTimeout: 30000, sessionName }; const result = await testUtils.runTerminalHistoryTest(testConfig); console.log('=== ECHO DUPLICATION DEBUG ==='); console.log('Full response:'); console.log(result.concatenatedResponses); console.log('=============================='); // Show hex representation to see exact characters console.log('Hex representation:'); const hex = Buffer.from(result.concatenatedResponses, 'utf8').toString('hex'); console.log(hex); console.log('=============================='); // Split response into lines for analysis const responseLines = result.concatenatedResponses.split('\n'); console.log('Response lines:', responseLines.length); // Count exact command occurrences const commandOccurrences = responseLines .filter(line => line.trim() === testCommand.trim()) .length; console.log(`Command "${testCommand}" appears ${commandOccurrences} times`); // Show lines containing the command const commandLines = responseLines .map((line, index) => ({ line: line.trim(), index })) .filter(item => item.line === testCommand.trim()); console.log('Lines containing command:', commandLines); // Analyze the actual problem in detail console.log('\n=== DETAILED ANALYSIS ==='); responseLines.forEach((line, i) => { console.log(`Line ${i}: "${line}"`); }); // The real issue: command result is treated as a command const problematicLine = responseLines.find(line => line.includes('[jsbattig@localhost ~]$ /home/jsbattig')); if (problematicLine) { console.log('\n🚨 FOUND THE PROBLEM: Command result treated as command input!'); console.log(`Problematic line: "${problematicLine}"`); } // Check for trailing command duplication const trailingCommand = responseLines[responseLines.length - 2]; // Second to last line if (trailingCommand && trailingCommand.trim() === testCommand) { console.log('\n🚨 FOUND TRAILING DUPLICATION: Command appears at end without prompt!'); console.log(`Trailing command: "${trailingCommand}"`); } // ECHO DUPLICATION FIX VERIFICATION: // The trailing command duplication has been fixed! // Command now only appears in prompt context, not as standalone line // Count total occurrences of "pwd" anywhere in output const totalPwdOccurrences = (result.concatenatedResponses.match(/pwd/g) || []).length; console.log(`Total "pwd" occurrences: ${totalPwdOccurrences}`); // Verify the command appears exactly once (in the prompt) expect(totalPwdOccurrences).toBe(1); // Verify no trailing command duplication (standalone command lines) expect(commandOccurrences).toBe(0); // No standalone "pwd" lines }); });