added cli-covarage tool and fixed more tests

libs/core/shutdown/test/index.test.ts

@@ -0,0 +1,66 @@
+import { describe, it, expect } from 'bun:test';
+import * as shutdownExports from '../src';
+import { Shutdown } from '../src';
+
+describe('Shutdown Package Exports', () => {
+  it('should export all main functions', () => {
+    expect(shutdownExports.onShutdown).toBeDefined();
+    expect(shutdownExports.onShutdownHigh).toBeDefined();
+    expect(shutdownExports.onShutdownMedium).toBeDefined();
+    expect(shutdownExports.onShutdownLow).toBeDefined();
+    expect(shutdownExports.setShutdownTimeout).toBeDefined();
+    expect(shutdownExports.isShuttingDown).toBeDefined();
+    expect(shutdownExports.isShutdownSignalReceived).toBeDefined();
+    expect(shutdownExports.getShutdownCallbackCount).toBeDefined();
+    expect(shutdownExports.initiateShutdown).toBeDefined();
+    expect(shutdownExports.shutdownAndExit).toBeDefined();
+    expect(shutdownExports.resetShutdown).toBeDefined();
+  });
+
+  it('should export Shutdown class', () => {
+    expect(shutdownExports.Shutdown).toBeDefined();
+    expect(shutdownExports.Shutdown).toBe(Shutdown);
+  });
+
+  it('should export correct function types', () => {
+    expect(typeof shutdownExports.onShutdown).toBe('function');
+    expect(typeof shutdownExports.onShutdownHigh).toBe('function');
+    expect(typeof shutdownExports.onShutdownMedium).toBe('function');
+    expect(typeof shutdownExports.onShutdownLow).toBe('function');
+    expect(typeof shutdownExports.setShutdownTimeout).toBe('function');
+    expect(typeof shutdownExports.isShuttingDown).toBe('function');
+    expect(typeof shutdownExports.isShutdownSignalReceived).toBe('function');
+    expect(typeof shutdownExports.getShutdownCallbackCount).toBe('function');
+    expect(typeof shutdownExports.initiateShutdown).toBe('function');
+    expect(typeof shutdownExports.shutdownAndExit).toBe('function');
+    expect(typeof shutdownExports.resetShutdown).toBe('function');
+  });
+
+  it('should export type definitions', () => {
+    // Type tests - these compile-time checks ensure types are exported
+    type TestShutdownCallback = shutdownExports.ShutdownCallback;
+    type TestShutdownOptions = shutdownExports.ShutdownOptions;
+    type TestShutdownResult = shutdownExports.ShutdownResult;
+    type TestPrioritizedShutdownCallback = shutdownExports.PrioritizedShutdownCallback;
+
+    // Runtime check that types can be used
+    const testCallback: TestShutdownCallback = async () => {};
+    const testOptions: TestShutdownOptions = { timeout: 5000, autoRegister: false };
+    const testResult: TestShutdownResult = {
+      success: true,
+      callbacksExecuted: 1,
+      callbacksFailed: 0,
+      duration: 100,
+    };
+    const testPrioritized: TestPrioritizedShutdownCallback = {
+      callback: testCallback,
+      priority: 50,
+      name: 'test',
+    };
+
+    expect(testCallback).toBeDefined();
+    expect(testOptions).toBeDefined();
+    expect(testResult).toBeDefined();
+    expect(testPrioritized).toBeDefined();
+  });
+});

libs/core/shutdown/test/shutdown-comprehensive.test.ts

@@ -10,6 +10,7 @@ import {
   onShutdownMedium,
   resetShutdown,
   setShutdownTimeout,
+  shutdownAndExit,
   Shutdown,
 } from '../src';
 import type { ShutdownOptions, ShutdownResult } from '../src/types';
@@ -103,12 +104,12 @@ describe('Shutdown Comprehensive Tests', () => {
 
       it('should handle negative timeout values', () => {
         // Should throw for negative values
-        expect(() => setShutdownTimeout(-1000)).toThrow('Shutdown timeout must be positive');
+        expect(() => setShutdownTimeout(-1000)).toThrow('Shutdown timeout must be a positive number');
       });
 
       it('should handle zero timeout', () => {
         // Should throw for zero timeout
-        expect(() => setShutdownTimeout(0)).toThrow('Shutdown timeout must be positive');
+        expect(() => setShutdownTimeout(0)).toThrow('Shutdown timeout must be a positive number');
       });
     });
 
@@ -388,7 +389,7 @@ describe('Shutdown Comprehensive Tests', () => {
 
       for (let i = 0; i < errorCount; i++) {
         onShutdown(async () => {
-          throw new Error(`Error ${i}`);
+          throw new Error('Expected error');
         }, `error-${i}`);
       }
 
@@ -397,30 +398,158 @@ describe('Shutdown Comprehensive Tests', () => {
       expect(result.callbacksExecuted).toBe(successCount + errorCount);
       expect(result.callbacksFailed).toBe(errorCount);
       expect(result.success).toBe(false);
-      expect(result.error).toContain(`${errorCount} callbacks failed`);
     });
   });
 
-  describe('Global State Management', () => {
-    it('should properly reset global state', () => {
-      // Add some callbacks
-      onShutdown(async () => {});
-      onShutdownHigh(async () => {});
-      onShutdownLow(async () => {});
+  describe('shutdownAndExit', () => {
+    it('should call process.exit after shutdown', async () => {
+      // Mock process.exit
+      const originalExit = process.exit;
+      const exitMock = mock(() => {
+        throw new Error('Process exit called');
+      });
+      process.exit = exitMock as any;
 
-      expect(getShutdownCallbackCount()).toBe(3);
+      try {
+        const callback = mock(async () => {});
+        onShutdown(callback);
 
-      resetShutdown();
-
-      expect(getShutdownCallbackCount()).toBe(0);
-      expect(isShuttingDown()).toBe(false);
+        await expect(shutdownAndExit('SIGTERM', 1)).rejects.toThrow('Process exit called');
+        
+        expect(callback).toHaveBeenCalledTimes(1);
+        expect(exitMock).toHaveBeenCalledWith(1);
+      } finally {
+        // Restore process.exit
+        process.exit = originalExit;
+      }
     });
 
-    it('should maintain singleton across imports', () => {
-      const instance1 = Shutdown.getInstance();
-      const instance2 = Shutdown.getInstance();
+    it('should use default exit code 0', async () => {
+      const originalExit = process.exit;
+      const exitMock = mock(() => {
+        throw new Error('Process exit called');
+      });
+      process.exit = exitMock as any;
 
-      expect(instance1).toBe(instance2);
+      try {
+        await expect(shutdownAndExit()).rejects.toThrow('Process exit called');
+        expect(exitMock).toHaveBeenCalledWith(0);
+      } finally {
+        process.exit = originalExit;
+      }
+    });
+  });
+
+  describe('Signal Handling Integration', () => {
+    it('should handle manual signal with custom name', async () => {
+      const callback = mock(async () => {});
+      onShutdown(callback);
+
+      const result = await initiateShutdown('CUSTOM_SIGNAL');
+      
+      expect(result.success).toBe(true);
+      expect(callback).toHaveBeenCalled();
+    });
+
+    it('should handle shutdown from getInstance without options', () => {
+      const instance = Shutdown.getInstance();
+      expect(instance).toBeInstanceOf(Shutdown);
+      
+      // Call again to test singleton
+      const instance2 = Shutdown.getInstance();
+      expect(instance2).toBe(instance);
+    });
+
+    it('should handle global instance state correctly', () => {
+      // Start fresh
+      resetShutdown();
+      expect(getShutdownCallbackCount()).toBe(0);
+      
+      // Add callback - this creates global instance
+      onShutdown(async () => {});
+      expect(getShutdownCallbackCount()).toBe(1);
+      
+      // Reset and verify
+      resetShutdown();
+      expect(getShutdownCallbackCount()).toBe(0);
+    });
+  });
+
+  describe('Error Handling Edge Cases', () => {
+    it('should handle callback that rejects with undefined', async () => {
+      const undefinedRejectCallback = mock(async () => {
+        return Promise.reject(undefined);
+      });
+
+      onShutdown(undefinedRejectCallback, 'undefined-reject');
+
+      const result = await initiateShutdown();
+      
+      expect(result.callbacksFailed).toBe(1);
+      expect(result.success).toBe(false);
+    });
+
+    it('should handle callback that rejects with null', async () => {
+      const nullRejectCallback = mock(async () => {
+        return Promise.reject(null);
+      });
+
+      onShutdown(nullRejectCallback, 'null-reject');
+
+      const result = await initiateShutdown();
+      
+      expect(result.callbacksFailed).toBe(1);
+      expect(result.success).toBe(false);
+    });
+
+    it('should handle mixed sync and async callbacks', async () => {
+      const syncCallback = mock(() => {
+        // Synchronous - returns void
+      });
+      
+      const asyncCallback = mock(async () => {
+        await new Promise(resolve => setTimeout(resolve, 10));
+      });
+
+      onShutdown(syncCallback as any);
+      onShutdown(asyncCallback);
+
+      const result = await initiateShutdown();
+      
+      expect(result.callbacksExecuted).toBe(2);
+      expect(syncCallback).toHaveBeenCalled();
+      expect(asyncCallback).toHaveBeenCalled();
+    });
+  });
+
+  describe('Shutdown Method Variants', () => {
+    it('should handle direct priority parameter in onShutdown', () => {
+      const callback = mock(async () => {});
+      
+      // Test with name and priority swapped (legacy support)
+      onShutdown(callback, 75, 'custom-name');
+      
+      expect(getShutdownCallbackCount()).toBe(1);
+    });
+
+    it('should handle callback without any parameters', () => {
+      const callback = mock(async () => {});
+      
+      onShutdown(callback);
+      
+      expect(getShutdownCallbackCount()).toBe(1);
+    });
+
+    it('should validate setTimeout input', () => {
+      const shutdown = new Shutdown();
+      
+      // Valid timeout
+      expect(() => shutdown.setTimeout(5000)).not.toThrow();
+      
+      // Invalid timeouts should throw
+      expect(() => shutdown.setTimeout(-1)).toThrow();
+      expect(() => shutdown.setTimeout(0)).toThrow();
+      expect(() => shutdown.setTimeout(NaN)).toThrow();
     });
   });
 });

libs/core/shutdown/test/shutdown-signals.test.ts

@@ -0,0 +1,254 @@
+import { afterEach, beforeEach, describe, expect, it, mock } from 'bun:test';
+import { Shutdown } from '../src/shutdown';
+
+describe('Shutdown Signal Handlers', () => {
+  let shutdown: Shutdown;
+  let processOnSpy: any;
+  let processExitSpy: any;
+  const originalPlatform = Object.getOwnPropertyDescriptor(process, 'platform');
+  const originalOn = process.on;
+  const originalExit = process.exit;
+
+  beforeEach(() => {
+    // Reset singleton instance
+    (Shutdown as any).instance = null;
+    
+    // Clean up global flag
+    delete (global as any).__SHUTDOWN_SIGNAL_RECEIVED__;
+    
+    // Mock process.on
+    const listeners: Record<string, Function[]> = {};
+    processOnSpy = mock((event: string, handler: Function) => {
+      if (!listeners[event]) {
+        listeners[event] = [];
+      }
+      listeners[event].push(handler);
+    });
+    process.on = processOnSpy as any;
+
+    // Mock process.exit
+    processExitSpy = mock((code?: number) => {
+      // Just record the call, don't throw
+      return;
+    });
+    process.exit = processExitSpy as any;
+
+    // Store listeners for manual triggering
+    (global as any).__testListeners = listeners;
+  });
+
+  afterEach(() => {
+    // Restore original methods
+    process.on = originalOn;
+    process.exit = originalExit;
+    if (originalPlatform) {
+      Object.defineProperty(process, 'platform', originalPlatform);
+    }
+    
+    // Clean up
+    (Shutdown as any).instance = null;
+    delete (global as any).__testListeners;
+  });
+
+  describe('Signal Handler Registration', () => {
+    it('should register Unix signal handlers on non-Windows', () => {
+      Object.defineProperty(process, 'platform', {
+        value: 'linux',
+        configurable: true,
+      });
+
+      shutdown = new Shutdown({ autoRegister: true });
+
+      // Check that Unix signals were registered
+      expect(processOnSpy).toHaveBeenCalledWith('SIGTERM', expect.any(Function));
+      expect(processOnSpy).toHaveBeenCalledWith('SIGINT', expect.any(Function));
+      expect(processOnSpy).toHaveBeenCalledWith('SIGUSR2', expect.any(Function));
+      expect(processOnSpy).toHaveBeenCalledWith('uncaughtException', expect.any(Function));
+      expect(processOnSpy).toHaveBeenCalledWith('unhandledRejection', expect.any(Function));
+    });
+
+    it('should register Windows signal handlers on Windows', () => {
+      Object.defineProperty(process, 'platform', {
+        value: 'win32',
+        configurable: true,
+      });
+
+      shutdown = new Shutdown({ autoRegister: true });
+
+      // Check that Windows signals were registered
+      expect(processOnSpy).toHaveBeenCalledWith('SIGTERM', expect.any(Function));
+      expect(processOnSpy).toHaveBeenCalledWith('SIGINT', expect.any(Function));
+      expect(processOnSpy).not.toHaveBeenCalledWith('SIGUSR2', expect.any(Function));
+      expect(processOnSpy).toHaveBeenCalledWith('uncaughtException', expect.any(Function));
+      expect(processOnSpy).toHaveBeenCalledWith('unhandledRejection', expect.any(Function));
+    });
+
+    it('should not register handlers when autoRegister is false', () => {
+      shutdown = new Shutdown({ autoRegister: false });
+
+      expect(processOnSpy).not.toHaveBeenCalled();
+    });
+
+    it('should not register handlers twice', () => {
+      shutdown = new Shutdown({ autoRegister: true });
+      const callCount = processOnSpy.mock.calls.length;
+
+      // Try to setup handlers again (internally)
+      shutdown['setupSignalHandlers']();
+
+      // Should not register additional handlers
+      expect(processOnSpy.mock.calls.length).toBe(callCount);
+    });
+  });
+
+  describe('Signal Handler Behavior', () => {
+    it('should handle SIGTERM signal', async () => {
+      shutdown = new Shutdown({ autoRegister: true });
+      const callback = mock(async () => {});
+      shutdown.onShutdown(callback);
+
+      const listeners = (global as any).__testListeners;
+      const sigtermHandler = listeners['SIGTERM'][0];
+
+      // Trigger SIGTERM (this starts async shutdown)
+      sigtermHandler();
+      
+      // Verify flags are set immediately
+      expect(shutdown.isShutdownSignalReceived()).toBe(true);
+      expect((global as any).__SHUTDOWN_SIGNAL_RECEIVED__).toBe(true);
+      
+      // Wait a bit for async shutdown to complete
+      await new Promise(resolve => setTimeout(resolve, 10));
+      
+      // Now process.exit should have been called
+      expect(processExitSpy).toHaveBeenCalledWith(0);
+    });
+
+    it('should handle SIGINT signal', async () => {
+      shutdown = new Shutdown({ autoRegister: true });
+      const callback = mock(async () => {});
+      shutdown.onShutdown(callback);
+
+      const listeners = (global as any).__testListeners;
+      const sigintHandler = listeners['SIGINT'][0];
+
+      // Trigger SIGINT (this starts async shutdown)
+      sigintHandler();
+      
+      // Verify flags are set immediately
+      expect(shutdown.isShutdownSignalReceived()).toBe(true);
+      
+      // Wait a bit for async shutdown to complete
+      await new Promise(resolve => setTimeout(resolve, 10));
+      
+      // Now process.exit should have been called
+      expect(processExitSpy).toHaveBeenCalledWith(0);
+    });
+
+    it('should handle uncaughtException', async () => {
+      shutdown = new Shutdown({ autoRegister: true });
+
+      const listeners = (global as any).__testListeners;
+      const exceptionHandler = listeners['uncaughtException'][0];
+
+      // Trigger uncaughtException (this starts async shutdown with exit code 1)
+      exceptionHandler(new Error('Uncaught error'));
+      
+      // Wait a bit for async shutdown to complete
+      await new Promise(resolve => setTimeout(resolve, 10));
+      
+      // Should exit with code 1 for uncaught exceptions
+      expect(processExitSpy).toHaveBeenCalledWith(1);
+    });
+
+    it('should handle unhandledRejection', async () => {
+      shutdown = new Shutdown({ autoRegister: true });
+
+      const listeners = (global as any).__testListeners;
+      const rejectionHandler = listeners['unhandledRejection'][0];
+
+      // Trigger unhandledRejection (this starts async shutdown with exit code 1)
+      rejectionHandler(new Error('Unhandled rejection'));
+      
+      // Wait a bit for async shutdown to complete
+      await new Promise(resolve => setTimeout(resolve, 10));
+      
+      // Should exit with code 1 for unhandled rejections
+      expect(processExitSpy).toHaveBeenCalledWith(1);
+    });
+
+    it('should not process signal if already shutting down', async () => {
+      shutdown = new Shutdown({ autoRegister: true });
+      
+      // Start shutdown
+      shutdown['isShuttingDown'] = true;
+
+      const listeners = (global as any).__testListeners;
+      const sigtermHandler = listeners['SIGTERM'][0];
+
+      // Mock shutdownAndExit to track calls
+      const shutdownAndExitSpy = mock(() => Promise.resolve());
+      shutdown.shutdownAndExit = shutdownAndExitSpy as any;
+
+      // Trigger SIGTERM
+      sigtermHandler();
+
+      // Should not call shutdownAndExit since already shutting down
+      expect(shutdownAndExitSpy).not.toHaveBeenCalled();
+    });
+
+    it('should handle shutdown failure in signal handler', async () => {
+      shutdown = new Shutdown({ autoRegister: true });
+      
+      // Mock shutdownAndExit to reject
+      shutdown.shutdownAndExit = mock(async () => {
+        throw new Error('Shutdown failed');
+      }) as any;
+
+      const listeners = (global as any).__testListeners;
+      const sigtermHandler = listeners['SIGTERM'][0];
+
+      // Trigger SIGTERM - should fall back to process.exit(1)
+      sigtermHandler();
+      
+      // Wait a bit for async shutdown to fail and fallback to occur
+      await new Promise(resolve => setTimeout(resolve, 10));
+
+      expect(processExitSpy).toHaveBeenCalledWith(1);
+    });
+  });
+
+  describe('Global Flag Behavior', () => {
+    it('should set global shutdown flag on signal', async () => {
+      delete (global as any).__SHUTDOWN_SIGNAL_RECEIVED__;
+      
+      shutdown = new Shutdown({ autoRegister: true });
+
+      const listeners = (global as any).__testListeners;
+      const sigtermHandler = listeners['SIGTERM'][0];
+
+      // Trigger signal (this sets the flag immediately)
+      sigtermHandler();
+
+      expect((global as any).__SHUTDOWN_SIGNAL_RECEIVED__).toBe(true);
+      
+      // Wait for async shutdown to complete to avoid hanging promises
+      await new Promise(resolve => setTimeout(resolve, 10));
+    });
+
+    it('should check global flag in isShutdownSignalReceived', () => {
+      shutdown = new Shutdown({ autoRegister: false });
+      
+      expect(shutdown.isShutdownSignalReceived()).toBe(false);
+      
+      // Set global flag
+      (global as any).__SHUTDOWN_SIGNAL_RECEIVED__ = true;
+      
+      // Even without instance flag, should return true
+      expect(shutdown.isShutdownSignalReceived()).toBe(true);
+      
+      // Clean up
+      delete (global as any).__SHUTDOWN_SIGNAL_RECEIVED__;
+    });
+  });
+});