finished logger tests

libs/logger/test/middleware.test.ts

@@ -0,0 +1,273 @@
+/**
+ * Logger Middleware Integration Tests
+ * 
+ * Tests the Hono middleware functionality of the @stock-bot/logger package,
+ * verifying that all middleware components work correctly together.
+ */
+
+import { describe, it, expect, beforeEach, afterEach } from 'bun:test';
+import { 
+  loggingMiddleware, 
+  errorLoggingMiddleware, 
+  performanceMiddleware, 
+  securityMiddleware,
+  businessEventMiddleware,
+  comprehensiveLoggingMiddleware
+} from '../src';
+import { loggerTestHelpers } from './setup';
+
+describe('Logger Middleware Integration', () => {
+  beforeEach(() => {
+    // Clear logs before each test
+    loggerTestHelpers.clearCapturedLogs();
+  });
+
+  describe('Basic Logging Middleware', () => {
+    it('should log incoming requests', async () => {
+      // Create middleware with test logger
+      const testLogger = loggerTestHelpers.createTestLogger('middleware-test');
+      const middleware = loggingMiddleware({
+        serviceName: 'test-service',
+        logger: testLogger
+      });
+
+      // Create mock context
+      const mockContext = loggerTestHelpers.createHonoContextMock({
+        path: '/test',
+        method: 'GET'
+      });
+      const mockNext = loggerTestHelpers.createNextMock();
+
+      // Execute middleware
+      await middleware(mockContext, mockNext);
+
+      // Get captured logs
+      const logs = loggerTestHelpers.getCapturedLogs();
+
+      // Verify request was logged
+      expect(logs.length).toBeGreaterThan(0);
+      expect(logs[0].level).toBe('http');
+      expect(logs[0].msg).toContain('HTTP Request');
+    });
+
+    it('should skip logging for defined paths', async () => {
+      // Create middleware with skip paths
+      const testLogger = loggerTestHelpers.createTestLogger('middleware-test');
+      const middleware = loggingMiddleware({
+        serviceName: 'test-service',
+        logger: testLogger,
+        skipPaths: ['/test']
+      });
+
+      // Create mock context with path that should be skipped
+      const mockContext = loggerTestHelpers.createHonoContextMock({
+        path: '/test',
+        method: 'GET'
+      });
+      const mockNext = loggerTestHelpers.createNextMock();
+
+      // Execute middleware
+      await middleware(mockContext, mockNext);
+
+      // Get captured logs
+      const logs = loggerTestHelpers.getCapturedLogs();
+
+      // Verify no logs were captured
+      expect(logs.length).toBe(0);
+    });
+
+    it('should log request/response details', async () => {
+      // Create middleware that logs bodies
+      const testLogger = loggerTestHelpers.createTestLogger('middleware-test');
+      const middleware = loggingMiddleware({
+        serviceName: 'test-service',
+        logger: testLogger,
+        logRequestBody: true,
+        logResponseBody: true
+      });
+
+      // Create mock context with response status
+      const mockContext = loggerTestHelpers.createHonoContextMock({
+        path: '/api/data',
+        method: 'POST',
+        res: { 
+          status: 200,
+          body: { success: true }
+        }
+      });
+      const mockNext = loggerTestHelpers.createNextMock();
+
+      // Execute middleware
+      await middleware(mockContext, mockNext);
+
+      // Get captured logs
+      const logs = loggerTestHelpers.getCapturedLogs();
+
+      // Verify request and response were logged
+      expect(logs.length).toBeGreaterThan(0);
+      // First log is HTTP request started, and final log is HTTP request completed
+      expect(logs[0].msg).toContain('HTTP Request started');
+      expect(logs[logs.length-1].msg).toContain('HTTP Request completed');
+    });
+  });
+
+  describe('Error Logging Middleware', () => {
+    it('should log errors from next middleware', async () => {
+      // Create middleware
+      const testLogger = loggerTestHelpers.createTestLogger('middleware-test');
+      const middleware = errorLoggingMiddleware(testLogger);
+
+      // Create mock context
+      const mockContext = loggerTestHelpers.createHonoContextMock({
+        path: '/api/error',
+        method: 'GET'
+      });
+      
+      // Create next function that throws error
+      const mockNext = async () => {
+        throw new Error('Test error');
+      };
+
+      // Execute middleware
+      try {
+        await middleware(mockContext, mockNext);
+      } catch (error) {
+        // Error should be re-thrown after logging
+      }
+
+      // Get captured logs
+      const logs = loggerTestHelpers.getCapturedLogs();
+
+      // Verify error was logged
+      expect(logs.length).toBe(1);
+      expect(logs[0].level).toBe('error');
+      expect(logs[0].msg).toContain('Unhandled HTTP error');
+    });
+  });
+
+  describe('Performance Middleware', () => {
+    it('should log performance metrics for requests', async () => {
+      // Create middleware
+      const testLogger = loggerTestHelpers.createTestLogger('middleware-test');
+      const middleware = performanceMiddleware('test-operation', testLogger);
+
+      // Create mock context
+      const mockContext = loggerTestHelpers.createHonoContextMock({
+        path: '/api/data',
+        method: 'GET'
+      });
+      const mockNext = loggerTestHelpers.createNextMock();
+
+      // Execute middleware
+      await middleware(mockContext, mockNext);
+
+      // Get captured logs
+      const logs = loggerTestHelpers.getCapturedLogs();
+
+      // Verify performance metrics were logged
+      expect(logs.length).toBe(1);
+      expect(logs[0].level).toBe('info');
+      expect(logs[0].msg).toContain('Operation completed');
+      expect(logs[0].performance).toBeDefined();
+    });
+  });
+
+  describe('Security Middleware', () => {
+    it('should log security events', async () => {
+      // Create middleware
+      const testLogger = loggerTestHelpers.createTestLogger('middleware-test');
+      const middleware = securityMiddleware(testLogger);
+
+      // Create mock context with auth header
+      const mockContext = loggerTestHelpers.createHonoContextMock({
+        path: '/api/secure',
+        method: 'GET',
+        req: {
+          headers: {
+            'authorization': 'Bearer test-token'
+          }
+        }
+      });
+      const mockNext = loggerTestHelpers.createNextMock();
+
+      // Execute middleware
+      await middleware(mockContext, mockNext);
+
+      // Get captured logs
+      const logs = loggerTestHelpers.getCapturedLogs();
+
+      // Verify security event was logged
+      expect(logs.length).toBe(1);
+      expect(logs[0].level).toBe('info');
+      expect(logs[0].msg).toContain('Authentication attempt');
+      expect(logs[0].type).toBe('security_event');
+    });
+  });
+
+  describe('Business Event Middleware', () => {
+    it('should log business events with custom metadata', async () => {
+      // Create middleware with custom business endpoints
+      const testLogger = loggerTestHelpers.createTestLogger('middleware-test');
+      const middleware = businessEventMiddleware(testLogger);
+
+      // Create mock context with business path
+      const mockContext = loggerTestHelpers.createHonoContextMock({
+        path: '/api/orders',
+        method: 'POST',
+        res: { status: 201 }
+      });
+      const mockNext = loggerTestHelpers.createNextMock();
+
+      // Execute middleware
+      await middleware(mockContext, mockNext);
+
+      // Get captured logs
+      const logs = loggerTestHelpers.getCapturedLogs();
+
+      // Verify business event was logged
+      expect(logs.length).toBe(1);
+      expect(logs[0].level).toBe('info');
+      expect(logs[0].msg).toContain('Business operation completed');
+      expect(logs[0].type).toBe('business_event');
+    });
+  });
+
+  describe('Comprehensive Logging Middleware', () => {
+    it('should combine multiple logging features', async () => {
+      // Create middleware
+      const testLogger = loggerTestHelpers.createTestLogger('middleware-test');
+      const middleware = comprehensiveLoggingMiddleware({
+        serviceName: 'test-service',
+        logger: testLogger
+      });
+
+      // Create mock context
+      const mockContext = loggerTestHelpers.createHonoContextMock({
+        path: '/api/data',
+        method: 'GET',
+        req: {
+          headers: {
+            'authorization': 'Bearer test-token'
+          }
+        }
+      });
+      const mockNext = loggerTestHelpers.createNextMock();
+
+      // Execute middleware
+      await middleware(mockContext, mockNext);
+
+      // Get captured logs
+      const logs = loggerTestHelpers.getCapturedLogs();
+
+      // Verify multiple log entries from different middleware components
+      expect(logs.length).toBeGreaterThan(1);
+      
+      // Should have logs from security, logging, and performance middleware
+      const securityLog = logs.find(log => log.type === 'security_event');
+      const requestLog = logs.find(log => log.msg?.includes('HTTP Request'));
+      
+      expect(securityLog).toBeDefined();
+      expect(requestLog).toBeDefined();
+    });
+  });
+});