claude-code-collective/tests/contracts/advanced-contract.test.js

Sub-agent collective framework for Claude Code with TDD validation, hub-spoke coordination, and automated handoffs

// advanced-contract.test.js
// Advanced contract validation scenarios for complex handoff patterns

const fs = require('fs-extra');
const path = require('path');

describe('Advanced Contract Validation', () => {
  
  describe('Multi-Stage Contract Chains', () => {
    test('should validate chained contract dependencies', async () => {
      const contractChain = [
        {
          stage: 'research',
          contract: {
            preconditions: [
              { name: 'requirements-gathered', test: (data) => data.requirements?.length > 0 }
            ],
            postconditions: [
              { name: 'research-complete', test: (result) => result.researchFindings !== undefined },
              { name: 'architecture-defined', test: (result) => result.architecture !== undefined }
            ]
          }
        },
        {
          stage: 'implementation', 
          contract: {
            preconditions: [
              { name: 'architecture-available', test: (data) => data.architecture !== undefined },
              { name: 'research-validated', test: (data) => data.researchFindings?.validated === true }
            ],
            postconditions: [
              { name: 'code-generated', test: (result) => result.codeFiles?.length > 0 },
              { name: 'tests-written', test: (result) => result.testFiles?.length > 0 }
            ]
          }
        },
        {
          stage: 'validation',
          contract: {
            preconditions: [
              { name: 'code-available', test: (data) => data.codeFiles?.length > 0 },
              { name: 'tests-available', test: (data) => data.testFiles?.length > 0 }
            ],
            postconditions: [
              { name: 'tests-passed', test: (result) => result.testResults?.allPassed === true },
              { name: 'coverage-adequate', test: (result) => result.coverage?.percentage >= 80 }
            ]
          }
        }
      ];
      
      // Simulate data flow through contract chain
      let handoffData = { requirements: ['auth', 'security', 'performance'] };
      
      for (const stage of contractChain) {
        // Validate preconditions
        const preconditionResults = stage.contract.preconditions.map(pc => ({
          name: pc.name,
          passed: pc.test(handoffData)
        }));
        
        expect(preconditionResults.every(r => r.passed)).toBe(true);
        
        // Simulate stage execution and postcondition fulfillment
        if (stage.stage === 'research') {
          handoffData = {
            ...handoffData,
            researchFindings: { validated: true },
            architecture: { type: 'microservices' }
          };
        } else if (stage.stage === 'implementation') {
          handoffData = {
            ...handoffData,
            codeFiles: ['auth.js', 'security.js'],
            testFiles: ['auth.test.js', 'security.test.js']
          };
        } else if (stage.stage === 'validation') {
          handoffData = {
            ...handoffData,
            testResults: { allPassed: true },
            coverage: { percentage: 85 }
          };
        }
        
        // Validate postconditions
        const postconditionResults = stage.contract.postconditions.map(pc => ({
          name: pc.name,
          passed: pc.test(handoffData)
        }));
        
        expect(postconditionResults.every(r => r.passed)).toBe(true);
      }
    });
    
    test('should handle contract chain failures with proper rollback', async () => {
      const failingContract = {
        preconditions: [
          {
            name: 'database-connection',
            test: (data) => data.dbConnection === 'active',
            critical: true,
            errorMessage: 'Database connection required for this operation'
          }
        ],
        postconditions: [
          {
            name: 'data-persisted',
            test: (result) => result.persistedRecords > 0,
            critical: true,
            errorMessage: 'No data was persisted'
          }
        ],
        rollback: async (handoff, error) => {
          return {
            rolled_back: true,
            reason: error.message,
            actions: ['cleared-temp-data', 'released-locks', 'logged-failure']
          };
        }
      };
      
      // Simulate failure scenario
      const failingData = { dbConnection: 'failed' };
      
      const preconditionCheck = failingContract.preconditions[0].test(failingData);
      expect(preconditionCheck).toBe(false);
      
      // Simulate rollback execution
      const rollbackResult = await failingContract.rollback(
        { context: failingData },
        new Error('Database connection failed')
      );
      
      expect(rollbackResult.rolled_back).toBe(true);
      expect(rollbackResult.actions).toContain('cleared-temp-data');
    });
  });
  
  describe('Performance Contract Validation', () => {
    test('should validate performance requirements in contracts', () => {
      const performanceContract = {
        preconditions: [
          {
            name: 'performance-baseline',
            test: (data) => data.baselineMetrics !== undefined,
            critical: false,
            errorMessage: 'Performance baseline not established'
          }
        ],
        postconditions: [
          {
            name: 'response-time-met',
            test: (result) => result.averageResponseTime <= result.maxAllowedResponseTime,
            critical: true,
            errorMessage: 'Response time requirement not met'
          },
          {
            name: 'memory-usage-acceptable',
            test: (result) => result.memoryUsage <= result.maxMemoryLimit,
            critical: true,
            errorMessage: 'Memory usage exceeds limits'
          },
          {
            name: 'throughput-adequate',
            test: (result) => result.requestsPerSecond >= result.minThroughput,
            critical: false,
            errorMessage: 'Throughput below expected levels'
          }
        ]
      };
      
      const performanceData = {
        baselineMetrics: { responseTime: 200, memory: 100, throughput: 500 }
      };
      
      const performanceResult = {
        averageResponseTime: 150,
        maxAllowedResponseTime: 200,
        memoryUsage: 80,
        maxMemoryLimit: 100,
        requestsPerSecond: 450,
        minThroughput: 400
      };
      
      // Validate preconditions
      const preconditionPassed = performanceContract.preconditions[0].test(performanceData);
      expect(preconditionPassed).toBe(true);
      
      // Validate postconditions
      const postconditionResults = performanceContract.postconditions.map(pc => ({
        name: pc.name,
        passed: pc.test(performanceResult),
        critical: pc.critical
      }));
      
      expect(postconditionResults.every(r => r.passed)).toBe(true);
      expect(postconditionResults.filter(r => r.critical).length).toBe(2);
    });
    
    test('should handle performance contract violations', () => {
      const performanceContract = {
        postconditions: [
          {
            name: 'response-time-critical',
            test: (result) => result.responseTime <= 100,
            critical: true,
            errorMessage: 'Critical response time limit exceeded'
          }
        ]
      };
      
      const failingResult = { responseTime: 250 };
      
      const violations = performanceContract.postconditions
        .filter(pc => !pc.test(failingResult))
        .map(pc => ({ name: pc.name, message: pc.errorMessage, critical: pc.critical }));
      
      expect(violations).toHaveLength(1);
      expect(violations[0].critical).toBe(true);
      expect(violations[0].message).toContain('Critical response time');
    });
  });
  
  describe('Security Contract Validation', () => {
    test('should validate security requirements in handoff contracts', () => {
      const securityContract = {
        preconditions: [
          {
            name: 'authentication-verified',
            test: (data) => data.authToken && data.authToken.valid === true,
            critical: true,
            errorMessage: 'Valid authentication required'
          },
          {
            name: 'authorization-checked',
            test: (data) => data.permissions && data.permissions.includes('write'),
            critical: true,
            errorMessage: 'Write permission required'
          }
        ],
        postconditions: [
          {
            name: 'data-sanitized',
            test: (result) => result.sanitizationReport?.sqlInjection === 'clean' && 
                             result.sanitizationReport?.xss === 'clean',
            critical: true,
            errorMessage: 'Data sanitization failed'
          },
          {
            name: 'audit-logged',
            test: (result) => result.auditLog?.timestamp !== undefined,
            critical: true,
            errorMessage: 'Security audit log required'
          }
        ]
      };
      
      const securityData = {
        authToken: { valid: true, userId: '123' },
        permissions: ['read', 'write', 'delete']
      };
      
      const securityResult = {
        sanitizationReport: { sqlInjection: 'clean', xss: 'clean' },
        auditLog: { timestamp: new Date().toISOString(), action: 'data_update' }
      };
      
      // Validate security preconditions
      const preconditionResults = securityContract.preconditions.map(pc => ({
        name: pc.name,
        passed: pc.test(securityData)
      }));
      
      expect(preconditionResults.every(r => r.passed)).toBe(true);
      
      // Validate security postconditions
      const postconditionResults = securityContract.postconditions.map(pc => ({
        name: pc.name,
        passed: pc.test(securityResult)
      }));
      
      expect(postconditionResults.every(r => r.passed)).toBe(true);
    });
    
    test('should reject insecure handoff attempts', () => {
      const securityContract = {
        preconditions: [
          {
            name: 'secure-connection',
            test: (data) => data.connection?.encrypted === true,
            critical: true,
            errorMessage: 'Encrypted connection required'
          }
        ]
      };
      
      const insecureData = {
        connection: { encrypted: false, protocol: 'http' }
      };
      
      const securityViolation = securityContract.preconditions.find(
        pc => !pc.test(insecureData)
      );
      
      expect(securityViolation).toBeDefined();
      expect(securityViolation.name).toBe('secure-connection');
      expect(securityViolation.critical).toBe(true);
    });
  });
  
  describe('Data Integrity Contract Validation', () => {
    test('should validate data transformation contracts', () => {
      const dataTransformContract = {
        preconditions: [
          {
            name: 'input-schema-valid',
            test: (data) => validateSchema(data.input, data.expectedSchema),
            critical: true,
            errorMessage: 'Input data does not match expected schema'
          }
        ],
        postconditions: [
          {
            name: 'output-schema-valid',
            test: (result) => validateSchema(result.output, result.outputSchema),
            critical: true,
            errorMessage: 'Output data does not match expected schema'
          },
          {
            name: 'data-integrity-maintained',
            test: (result) => result.checksumValid === true,
            critical: true,
            errorMessage: 'Data integrity check failed'
          }
        ]
      };
      
      const inputData = {
        input: { id: 1, name: 'John', email: 'john@example.com' },
        expectedSchema: { id: 'number', name: 'string', email: 'string' }
      };
      
      const transformResult = {
        output: { userId: 1, displayName: 'John', contactEmail: 'john@example.com' },
        outputSchema: { userId: 'number', displayName: 'string', contactEmail: 'string' },
        checksumValid: true
      };
      
      const preconditionPassed = dataTransformContract.preconditions[0].test(inputData);
      expect(preconditionPassed).toBe(true);
      
      const postconditionResults = dataTransformContract.postconditions.map(pc => 
        pc.test(transformResult)
      );
      expect(postconditionResults.every(result => result)).toBe(true);
    });
  });
});

// Helper function for schema validation
function validateSchema(data, schema) {
  if (!data || !schema) return false;
  
  return Object.keys(schema).every(key => {
    const expectedType = schema[key];
    const actualType = typeof data[key];
    return actualType === expectedType;
  });
}