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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | 1x 1x 16x 1x 16x 16x 16x 16x 16x 16x 1x 3x | import { LoggerService, Logger } from '../logging/logger.service';
/**
* Mock logger for testing
* All methods are jest.fn() for easy assertion
*/
export interface MockLogger extends Logger {
debug: jest.Mock;
info: jest.Mock;
warn: jest.Mock;
error: jest.Mock;
}
/**
* Creates a fresh mock logger instance
*/
export function createMockLogger(): MockLogger {
return {
debug: jest.fn(),
info: jest.fn(),
warn: jest.fn(),
error: jest.fn(),
};
}
/**
* Mock LoggerService that returns mock loggers via withContext()
* Use mockLoggerService.mockLogger to access the logger returned by withContext()
*/
export class MockLoggerService {
readonly mockLogger: MockLogger = createMockLogger();
withContext(_context: string): MockLogger {
return this.mockLogger;
}
// Direct methods for cases where LoggerService is used without withContext
debug = jest.fn();
info = jest.fn();
warn = jest.fn();
error = jest.fn();
}
/**
* Provider for use in test configurations
*
* Usage:
* ```typescript
* const createService = createServiceFactory({
* service: MyService,
* providers: [mockLoggerProvider()],
* });
*
* // In test:
* const loggerService = spectator.inject(LoggerService) as MockLoggerService;
* expect(loggerService.mockLogger.error).toHaveBeenCalledWith('message', data);
* ```
*/
export function mockLoggerProvider() {
return {
provide: LoggerService,
useClass: MockLoggerService,
};
}
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