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| 1 | +import Logger, { ConsoleLogger } from '../../src/logger'; |
| 2 | + |
| 3 | +describe('Logger', () => { |
| 4 | + let mockConsole: any; |
| 5 | + let logger: Logger; |
| 6 | + |
| 7 | + beforeEach(() => { |
| 8 | + mockConsole = { |
| 9 | + info: jest.fn(), |
| 10 | + warn: jest.fn(), |
| 11 | + error: jest.fn() |
| 12 | + }; |
| 13 | + (global as any).console = mockConsole; |
| 14 | + }); |
| 15 | + |
| 16 | + afterEach(() => { |
| 17 | + jest.clearAllMocks(); |
| 18 | + }); |
| 19 | + |
| 20 | + it('should call verbose, warning, and error methods on ConsoleLogger at correct log levels', () => { |
| 21 | + logger = new Logger({ logLevel: 'verbose' as any }); |
| 22 | + |
| 23 | + logger.verbose('message1'); |
| 24 | + logger.warning('message2'); |
| 25 | + logger.error('message3'); |
| 26 | + |
| 27 | + expect(mockConsole.info).toHaveBeenCalledWith('message1'); |
| 28 | + expect(mockConsole.warn).toHaveBeenCalledWith('message2'); |
| 29 | + expect(mockConsole.error).toHaveBeenCalledWith('message3'); |
| 30 | + }); |
| 31 | + |
| 32 | + it('should only call warning and error at warning log level', () => { |
| 33 | + logger = new Logger({ logLevel: 'warning' as any }); |
| 34 | + |
| 35 | + logger.verbose('message1'); |
| 36 | + logger.warning('message2'); |
| 37 | + logger.error('message3'); |
| 38 | + |
| 39 | + expect(mockConsole.info).not.toHaveBeenCalled(); |
| 40 | + expect(mockConsole.warn).toHaveBeenCalledWith('message2'); |
| 41 | + expect(mockConsole.error).toHaveBeenCalledWith('message3'); |
| 42 | + }); |
| 43 | + |
| 44 | + it('should only call error at none log level', () => { |
| 45 | + logger = new Logger({ logLevel: 'none' as any }); |
| 46 | + |
| 47 | + logger.verbose('message1'); |
| 48 | + logger.warning('message2'); |
| 49 | + logger.error('message3'); |
| 50 | + |
| 51 | + expect(mockConsole.info).not.toHaveBeenCalled(); |
| 52 | + expect(mockConsole.warn).not.toHaveBeenCalled(); |
| 53 | + expect(mockConsole.error).not.toHaveBeenCalled(); |
| 54 | + }); |
| 55 | + |
| 56 | + it('should allow providing a custom logger', () => { |
| 57 | + const customLogger = { |
| 58 | + verbose: jest.fn(), |
| 59 | + warning: jest.fn(), |
| 60 | + error: jest.fn() |
| 61 | + }; |
| 62 | + |
| 63 | + logger = new Logger({ logLevel: 'verbose' as any, logger: customLogger }); |
| 64 | + |
| 65 | + logger.verbose('test-verbose'); |
| 66 | + logger.warning('test-warning'); |
| 67 | + logger.error('test-error'); |
| 68 | + |
| 69 | + expect(customLogger.verbose).toHaveBeenCalledWith('test-verbose'); |
| 70 | + expect(customLogger.warning).toHaveBeenCalledWith('test-warning'); |
| 71 | + expect(customLogger.error).toHaveBeenCalledWith('test-error'); |
| 72 | + }); |
| 73 | + |
| 74 | + it('should change log level with setLogLevel', () => { |
| 75 | + logger = new Logger({ logLevel: 'none' as any }); |
| 76 | + |
| 77 | + logger.verbose('one'); |
| 78 | + logger.warning('two'); |
| 79 | + logger.error('three'); |
| 80 | + expect(mockConsole.info).not.toHaveBeenCalled(); |
| 81 | + expect(mockConsole.warn).not.toHaveBeenCalled(); |
| 82 | + expect(mockConsole.error).not.toHaveBeenCalled(); |
| 83 | + |
| 84 | + logger.setLogLevel('verbose' as any); |
| 85 | + |
| 86 | + logger.verbose('a'); |
| 87 | + logger.warning('b'); |
| 88 | + logger.error('c'); |
| 89 | + expect(mockConsole.info).toHaveBeenCalledWith('a'); |
| 90 | + expect(mockConsole.warn).toHaveBeenCalledWith('b'); |
| 91 | + expect(mockConsole.error).toHaveBeenCalledWith('c'); |
| 92 | + }); |
| 93 | +}); |
| 94 | + |
| 95 | +describe('ConsoleLogger', () => { |
| 96 | + let mockConsole: any; |
| 97 | + let consoleLogger: ConsoleLogger; |
| 98 | + |
| 99 | + beforeEach(() => { |
| 100 | + mockConsole = { |
| 101 | + info: jest.fn(), |
| 102 | + warn: jest.fn(), |
| 103 | + error: jest.fn() |
| 104 | + }; |
| 105 | + (global as any).console = mockConsole; |
| 106 | + consoleLogger = new ConsoleLogger(); |
| 107 | + }); |
| 108 | + |
| 109 | + it('should use console.info for verbose', () => { |
| 110 | + consoleLogger.verbose('hi'); |
| 111 | + expect(mockConsole.info).toHaveBeenCalledWith('hi'); |
| 112 | + }); |
| 113 | + |
| 114 | + it('should use console.warn for warning', () => { |
| 115 | + consoleLogger.warning('warn msg'); |
| 116 | + expect(mockConsole.warn).toHaveBeenCalledWith('warn msg'); |
| 117 | + }); |
| 118 | + |
| 119 | + it('should use console.error for error', () => { |
| 120 | + consoleLogger.error('err'); |
| 121 | + expect(mockConsole.error).toHaveBeenCalledWith('err'); |
| 122 | + }); |
| 123 | +}); |
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