SSH MCP Server

/** * Prompt Detection Regex Bug Reproduction Test * TDD: Isolate and fix the specific regex issue in isPromptLine() */ describe('Prompt Detection Regex Bug Reproduction', () => { /** * Test to isolate the exact regex issue */ it('should identify the broken regex pattern for bracket prompts', () => { // Current broken regex from terminal-input-handler.js line 262 const brokenRegex = /^\[[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\s+[^\]]+\]\$\s*$/; // Real bracket prompt examples from our system const realPrompts = [ '[jsbattig@localhost ls-ssh-mcp]$ ', '[jsbattig@localhost ls-ssh-mcp]$', '[jsbattig@localhost ~]$ ', '[jsbattig@localhost /home/jsbattig]$ ' ]; console.log('Testing current broken regex against real prompts:'); for (const prompt of realPrompts) { const matches = brokenRegex.test(prompt.trim()); console.log(`"${prompt}" -> ${matches}`); // These should match but currently FAIL - demonstrating the bug if (!matches) { console.log(`❌ REGEX BUG FOUND: "${prompt}" should match but doesn't!`); } } // This test will FAIL initially, proving the bug exists expect(realPrompts.every(prompt => brokenRegex.test(prompt.trim()))).toBe(true); }); /** * Test to analyze why the regex fails */ it('should analyze the regex pattern components', () => { const brokenRegex = /^\[[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\s+[^\]]+\]\$\s*$/; const testPrompt = '[jsbattig@localhost ls-ssh-mcp]$'; console.log('Analyzing regex components:'); console.log('Full regex:', brokenRegex.toString()); console.log('Test prompt:', `"${testPrompt}"`); // Break down the regex to find the issue const components = [ { name: 'Start bracket', pattern: /^\[/, test: testPrompt }, { name: 'Username', pattern: /^\[[a-zA-Z0-9._-]+/, test: testPrompt }, { name: 'Username@host', pattern: /^\[[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+/, test: testPrompt }, { name: 'Username@host space', pattern: /^\[[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\s+/, test: testPrompt }, { name: 'Username@host space project', pattern: /^\[[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\s+[^\]]+/, test: testPrompt }, { name: 'Full without end', pattern: /^\[[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\s+[^\]]+\]/, test: testPrompt }, { name: 'Full pattern', pattern: brokenRegex, test: testPrompt } ]; for (const component of components) { const matches = component.pattern.test(component.test); console.log(`${component.name}: ${matches ? '✅' : '❌'} ${component.pattern}`); if (!matches && component.name !== 'Full pattern') { console.log(`🔍 ISSUE FOUND at component: ${component.name}`); break; } } // The issue is likely the required space (\s+) between hostname and project // Our prompts are: [jsbattig@localhost ls-ssh-mcp]$ // But regex expects: [jsbattig@localhost SPACE project]$ // However, "ls-ssh-mcp" comes right after localhost with NO space! console.log('🔍 HYPOTHESIS: The \\s+ (required space) is the problem!'); console.log('Real format: [jsbattig@localhost ls-ssh-mcp]$'); console.log('Regex expects: [jsbattig@localhost SPACE project]$'); expect(false).toBe(true); // This test should fail to demonstrate the analysis }); /** * Test the corrected regex pattern */ it('should provide corrected regex that works', () => { // Fixed regex - remove required space, allow anything between host and ] const betterRegex = /^\[[a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+[^\]]*\]\$\s*$/; const realPrompts = [ '[jsbattig@localhost ls-ssh-mcp]$ ', '[jsbattig@localhost ls-ssh-mcp]$', '[jsbattig@localhost ~]$ ', '[jsbattig@localhost /home/jsbattig]$ ' ]; console.log('Testing corrected regex:'); for (const prompt of realPrompts) { const matches = betterRegex.test(prompt.trim()); console.log(`"${prompt}" -> ${matches ? '✅' : '❌'}`); } // This should pass with the corrected regex expect(realPrompts.every(prompt => betterRegex.test(prompt.trim()))).toBe(true); }); });