| Conditions | 1 | 
| Paths | 1 | 
| Total Lines | 74 | 
| Code Lines | 47 | 
| Lines | 0 | 
| Ratio | 0 % | 
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | import { | 
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| 8 | describe('VisitsParser', () => { | 
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| 9 | const visits = [  | 
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| 10 |     { | 
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| 11 | userAgent: 'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:47.0) Gecko/20100101 Firefox/47.0',  | 
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| 12 | referer: 'https://google.com',  | 
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| 13 |       visitLocation: { | 
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| 14 | countryName: 'Spain',  | 
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| 15 | },  | 
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| 16 | },  | 
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| 17 |     { | 
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| 18 | userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X x.y; rv:42.0) Gecko/20100101 Firefox/42.0',  | 
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| 19 | referer: 'https://google.com',  | 
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| 20 |       visitLocation: { | 
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| 21 | countryName: 'United States',  | 
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| 22 | },  | 
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| 23 | },  | 
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| 24 |     { | 
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| 25 | userAgent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36',  | 
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| 26 |       visitLocation: { | 
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| 27 | countryName: 'Spain',  | 
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| 28 | },  | 
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| 29 | },  | 
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| 30 |     { | 
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| 31 | userAgent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36',  | 
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| 32 | referer: 'https://m.facebook.com',  | 
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| 33 |       visitLocation: { | 
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| 34 | countryName: 'Spain',  | 
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| 35 | },  | 
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| 36 | },  | 
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| 37 |     { | 
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| 38 | userAgent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36 OPR/38.0.2220.41',  | 
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| 39 | },  | 
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| 40 | ];  | 
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| 41 | |||
| 42 |   describe('processOsStats', () => { | 
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| 43 |     it('properly parses OS stats', () => { | 
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| 44 |       expect(processOsStats(visits)).toEqual({ | 
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| 45 | Linux: 3,  | 
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| 46 | Windows: 1,  | 
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| 47 | MacOS: 1,  | 
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| 48 | });  | 
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| 49 | });  | 
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| 50 | });  | 
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| 51 | |||
| 52 |   describe('processBrowserStats', () => { | 
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| 53 |     it('properly parses browser stats', () => { | 
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| 54 |       expect(processBrowserStats(visits)).toEqual({ | 
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| 55 | Firefox: 2,  | 
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| 56 | Chrome: 2,  | 
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| 57 | Opera: 1,  | 
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| 58 | });  | 
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| 59 | });  | 
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| 60 | });  | 
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| 61 | |||
| 62 |   describe('processReferrersStats', () => { | 
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| 63 |     it('properly parses referrer stats', () => { | 
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| 64 |       expect(processReferrersStats(visits)).toEqual({ | 
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| 65 | 'Unknown': 2,  | 
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| 66 | 'google.com': 2,  | 
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| 67 | 'm.facebook.com': 1,  | 
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| 68 | });  | 
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| 69 | });  | 
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| 70 | });  | 
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| 71 | |||
| 72 |   describe('processCountriesStats', () => { | 
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| 73 |     it('properly parses countries stats', () => { | 
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| 74 |       expect(processCountriesStats(visits)).toEqual({ | 
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| 75 | 'Spain': 3,  | 
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| 76 | 'United States': 1,  | 
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| 77 | 'Unknown': 1,  | 
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| 78 | });  | 
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| 79 | });  | 
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| 80 | });  | 
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| 81 | });  | 
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| 82 |