SSH MCP Server

/** * Echo Regression Analyzer Tests - TDD Implementation * * CRITICAL: No mocks - tests use real EchoRegressionAnalyzer functionality * These tests call REAL analysis methods that perform REAL system investigation * * Based on AC 1.1-1.15 from 01_Story_EchoRegressionAnalysis.md */ import { EchoRegressionAnalyzer } from '../src/echo-regression-analyzer'; describe('EchoRegressionAnalyzer', () => { let analyzer: EchoRegressionAnalyzer; beforeEach(async () => { // Create real analyzer instance - NO MOCKS analyzer = new EchoRegressionAnalyzer(); }); describe('Git History Analysis (AC 1.1, 1.4)', () => { test('should analyze pre-Command State Sync echo behavior using real git commands', async () => { // AC 1.1: Pre-Command State Sync echo behavior documentation const gitAnalysis = await analyzer.analyzeGitHistory(); // Should return real git analysis results, not hardcoded values expect(gitAnalysis).toBeDefined(); expect(gitAnalysis.preCommandStateSyncCommit).toBeDefined(); expect(gitAnalysis.commandStateSyncImplementationCommit).toBeDefined(); expect(gitAnalysis.echoRelatedChanges).toBeInstanceOf(Array); // Should have real commit hashes from actual git log expect(gitAnalysis.preCommandStateSyncCommit).toMatch(/^[a-f0-9]{7,40}$/); expect(gitAnalysis.commandStateSyncImplementationCommit).toMatch(/^[a-f0-9]{7,40}$/); // Should contain evidence of real code analysis expect(gitAnalysis.echoRelatedChanges.length).toBeGreaterThan(0); }); test('should identify specific code changes affecting echo handling using real git diff', async () => { // AC 1.4: Command State Sync implementation impact analysis const codeChanges = await analyzer.analyzeCodeChanges(); // Should return real file change analysis expect(codeChanges).toBeDefined(); expect(codeChanges.sshConnectionManagerChanges).toBeDefined(); expect(codeChanges.webServerManagerChanges).toBeDefined(); expect(codeChanges.potentialEchoAffectingChanges).toBeInstanceOf(Array); // Should contain real line numbers and code snippets expect(codeChanges.potentialEchoAffectingChanges.length).toBeGreaterThan(0); // Verify changes include line numbers and actual code const firstChange = codeChanges.potentialEchoAffectingChanges[0]; expect(firstChange.file).toBeDefined(); expect(firstChange.lineNumber).toBeGreaterThan(0); expect(firstChange.description).toBeDefined(); }); }); describe('Current Echo Regression Analysis (AC 1.2, 1.3)', () => { test('should characterize current double echo regression using real Villenele testing', async () => { // AC 1.2: Current regression behavior characterization const regressionAnalysis = await analyzer.analyzeCurrentEchoBehavior(); // Should execute real terminal tests to gather evidence expect(regressionAnalysis).toBeDefined(); expect(regressionAnalysis.browserCommandEcho).toBeDefined(); expect(regressionAnalysis.mcpCommandEcho).toBeDefined(); expect(regressionAnalysis.duplicationPattern).toBeDefined(); // Should contain actual WebSocket message evidence expect(regressionAnalysis.browserCommandEcho.webSocketMessages).toBeDefined(); expect(regressionAnalysis.browserCommandEcho.webSocketMessages.length).toBeGreaterThan(0); // Should detect actual duplication in browser commands expect(regressionAnalysis.browserCommandEcho.isDuplicated).toBe(true); expect(regressionAnalysis.mcpCommandEcho.isDuplicated).toBe(false); }); test('should analyze regression scope across command types using enhanced Villenele', async () => { // AC 1.3: Regression scope and impact analysis const scopeAnalysis = await analyzer.analyzeRegressionScope(); // Should test real commands with Villenele framework expect(scopeAnalysis).toBeDefined(); expect(scopeAnalysis.simpleCommands).toBeDefined(); expect(scopeAnalysis.complexCommands).toBeDefined(); expect(scopeAnalysis.interactiveCommands).toBeDefined(); // Should contain results from actual command execution expect(scopeAnalysis.simpleCommands.length).toBeGreaterThan(0); expect(scopeAnalysis.complexCommands.length).toBeGreaterThan(0); // Verify all commands show consistent duplication pattern const allCommands = [...scopeAnalysis.simpleCommands, ...scopeAnalysis.complexCommands]; allCommands.forEach(cmd => { expect(cmd.command).toBeDefined(); expect(cmd.isDuplicated).toBeDefined(); expect(cmd.webSocketResponse).toBeDefined(); }); }); }); describe('Enhanced Villenele Testing (AC 1.7, 1.8, 1.9)', () => { test('should analyze browser command echo patterns using Feature 01 capabilities', async () => { // AC 1.7: Browser command echo pattern analysis using Villenele const browserEchoAnalysis = await analyzer.analyzeBrowserCommandEchoPatterns(); // Should use real enhanced Villenele framework expect(browserEchoAnalysis).toBeDefined(); expect(browserEchoAnalysis.pwdCommand).toBeDefined(); expect(browserEchoAnalysis.whoamiCommand).toBeDefined(); expect(browserEchoAnalysis.echoTestCommand).toBeDefined(); // Should contain actual WebSocket response patterns browserEchoAnalysis.pwdCommand.webSocketResponses.forEach((response: any) => { expect(response.timestamp).toBeGreaterThan(0); expect(response.data).toBeDefined(); expect(response.messageType).toMatch(/^(command_echo|command_result)$/); }); // Should detect actual duplication timing expect(browserEchoAnalysis.duplicationTimingMs).toBeGreaterThan(0); }); test('should validate MCP command echo patterns with no duplication', async () => { // AC 1.8: MCP command echo pattern validation using Villenele const mcpEchoAnalysis = await analyzer.analyzeMCPCommandEchoPatterns(); // Should execute real MCP commands via Villenele expect(mcpEchoAnalysis).toBeDefined(); expect(mcpEchoAnalysis.pwdCommand).toBeDefined(); expect(mcpEchoAnalysis.whoamiCommand).toBeDefined(); expect(mcpEchoAnalysis.echoTestCommand).toBeDefined(); // Should confirm no duplication in MCP commands expect(mcpEchoAnalysis.pwdCommand.isDuplicated).toBe(false); expect(mcpEchoAnalysis.whoamiCommand.isDuplicated).toBe(false); expect(mcpEchoAnalysis.echoTestCommand.isDuplicated).toBe(false); // Should contain single display pattern evidence mcpEchoAnalysis.pwdCommand.webSocketResponses.forEach((response: any) => { expect(response.isDuplicateEcho).toBe(false); }); }); test('should analyze mixed command scenarios for echo consistency', async () => { // AC 1.9: Mixed command scenario echo analysis using Villenele const mixedScenarioAnalysis = await analyzer.analyzeMixedCommandScenarios(); // Should execute real interleaved browser and MCP commands expect(mixedScenarioAnalysis).toBeDefined(); expect(mixedScenarioAnalysis.commandSequence).toBeDefined(); expect(mixedScenarioAnalysis.commandSequence.length).toBe(4); // As specified in AC 1.9 // Should maintain echo behavior consistency const browserCommands = mixedScenarioAnalysis.commandSequence.filter((cmd: any) => cmd.initiator === 'browser'); const mcpCommands = mixedScenarioAnalysis.commandSequence.filter((cmd: any) => cmd.initiator === 'mcp-client'); browserCommands.forEach((cmd: any) => { expect(cmd.isDuplicated).toBe(true); }); mcpCommands.forEach((cmd: any) => { expect(cmd.isDuplicated).toBe(false); }); }); }); describe('Command State Synchronization Impact (AC 1.10, 1.11, 1.12)', () => { test('should analyze command gating scenario echo behavior', async () => { // AC 1.10: Command gating scenario echo behavior analysis const gatingAnalysis = await analyzer.analyzeCommandGatingEchoBehavior(); // Should test real command gating scenarios expect(gatingAnalysis).toBeDefined(); expect(gatingAnalysis.browserCommandsInBuffer).toBeDefined(); expect(gatingAnalysis.gatedMCPCommands).toBeDefined(); expect(gatingAnalysis.browserCommandEchoError).toBeDefined(); // Should verify gating doesn't affect browser command echo expect(gatingAnalysis.browserCommandsInBuffer.isDuplicated).toBe(true); expect(gatingAnalysis.gatedMCPCommands.errorResponse).toContain('BROWSER_COMMANDS_EXECUTED'); }); test('should analyze command cancellation impact on echo behavior', async () => { // AC 1.11: Command cancellation impact on echo behavior const cancellationAnalysis = await analyzer.analyzeCommandCancellationEchoBehavior(); // Should test real command cancellation scenarios expect(cancellationAnalysis).toBeDefined(); expect(cancellationAnalysis.cancelledBrowserCommands).toBeDefined(); expect(cancellationAnalysis.cancelledMCPCommands).toBeDefined(); expect(cancellationAnalysis.postCancellationCommands).toBeDefined(); // Should verify cancellation doesn't introduce additional echo issues expect(cancellationAnalysis.cancelledBrowserCommands.isDuplicated).toBe(true); expect(cancellationAnalysis.cancelledMCPCommands.isDuplicated).toBe(false); expect(cancellationAnalysis.postCancellationCommands.isDuplicated).toBe(true); }); test('should validate nuclear fallback echo behavior', async () => { // AC 1.12: Nuclear fallback echo behavior validation const fallbackAnalysis = await analyzer.analyzeNuclearFallbackEchoBehavior(); // Should test real nuclear fallback scenarios expect(fallbackAnalysis).toBeDefined(); expect(fallbackAnalysis.preFallbackCommands).toBeDefined(); expect(fallbackAnalysis.fallbackProcess).toBeDefined(); expect(fallbackAnalysis.postFallbackCommands).toBeDefined(); // Should verify fallback doesn't affect subsequent echo behavior expect(fallbackAnalysis.preFallbackCommands.isDuplicated).toBe(true); expect(fallbackAnalysis.postFallbackCommands.isDuplicated).toBe(true); expect(fallbackAnalysis.fallbackProcess.introducesEchoDuplication).toBe(false); }); }); describe('Root Cause Analysis and Documentation (AC 1.13, 1.14, 1.15)', () => { test('should develop evidence-based root cause hypothesis', async () => { // AC 1.13: Echo duplication mechanism hypothesis development const rootCauseHypothesis = await analyzer.developRootCauseHypothesis(); // Should synthesize findings from all previous analysis expect(rootCauseHypothesis).toBeDefined(); expect(rootCauseHypothesis.duplicationMechanism).toBeDefined(); expect(rootCauseHypothesis.browserVsMCPDifference).toBeDefined(); expect(rootCauseHypothesis.commandStateSyncInteraction).toBeDefined(); expect(rootCauseHypothesis.supportingEvidence).toBeDefined(); expect(rootCauseHypothesis.proposedCodeChanges).toBeDefined(); // Should contain specific code path identification expect(rootCauseHypothesis.duplicationMechanism.codePath).toBeDefined(); expect(rootCauseHypothesis.duplicationMechanism.codePath.length).toBeGreaterThan(0); // Should have evidence supporting the hypothesis expect(rootCauseHypothesis.supportingEvidence.length).toBeGreaterThan(0); }); test('should assess fix complexity and implementation risk', async () => { // AC 1.14: Fix complexity assessment and risk analysis const fixAssessment = await analyzer.assessFixComplexityAndRisk(); // Should provide real complexity analysis expect(fixAssessment).toBeDefined(); expect(fixAssessment.complexityLevel).toMatch(/^(minimal|moderate|major)$/); expect(fixAssessment.riskLevel).toMatch(/^(low|medium|high)$/); expect(fixAssessment.estimatedEffort).toBeDefined(); expect(fixAssessment.commandStateSyncRisk).toBeDefined(); expect(fixAssessment.testingRequirements).toBeDefined(); expect(fixAssessment.potentialSideEffects).toBeDefined(); // Should have specific testing scenarios expect(fixAssessment.testingRequirements.length).toBeGreaterThan(0); }); test('should generate comprehensive analysis documentation', async () => { // AC 1.15: Analysis documentation and validation const analysisReport = await analyzer.generateComprehensiveAnalysisReport(); // Should provide complete analysis documentation expect(analysisReport).toBeDefined(); expect(analysisReport.beforeAfterBehavior).toBeDefined(); expect(analysisReport.rootCauseIdentification).toBeDefined(); expect(analysisReport.detailedHypothesis).toBeDefined(); expect(analysisReport.fixApproachRecommendation).toBeDefined(); expect(analysisReport.additionalValidationResults).toBeDefined(); // Should include code references expect(analysisReport.rootCauseIdentification.codeReferences).toBeDefined(); expect(analysisReport.rootCauseIdentification.codeReferences.length).toBeGreaterThan(0); // Should provide surgical fix approach expect(analysisReport.fixApproachRecommendation.approach).toMatch(/^(surgical|refactor|redesign)$/); expect(analysisReport.fixApproachRecommendation.specificChanges).toBeDefined(); }); }); describe('Integration Tests', () => { test('should execute complete echo regression analysis workflow', async () => { // Full workflow test using all analysis methods const completeAnalysis = await analyzer.executeCompleteAnalysis(); // Should return comprehensive analysis results expect(completeAnalysis).toBeDefined(); expect(completeAnalysis.gitAnalysis).toBeDefined(); expect(completeAnalysis.codeChangeAnalysis).toBeDefined(); expect(completeAnalysis.currentBehaviorAnalysis).toBeDefined(); expect(completeAnalysis.villeneleTestingResults).toBeDefined(); expect(completeAnalysis.commandStateSyncImpact).toBeDefined(); expect(completeAnalysis.rootCauseHypothesis).toBeDefined(); expect(completeAnalysis.fixAssessment).toBeDefined(); expect(completeAnalysis.finalReport).toBeDefined(); // Should provide actionable fix guidance expect(completeAnalysis.finalReport.isReadyForImplementation).toBe(true); expect(completeAnalysis.finalReport.surgicalFixGuidance).toBeDefined(); }); }); });