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1
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const fs = require('fs') |
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2
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const { join } = require('path') |
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3
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4
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const outputHelper = require('../../helper/output') |
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5
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const TIMEOUT = 1000 |
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6
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7
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describe('Output helper', () => { |
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8
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const spyError = jest.spyOn(console, 'error').mockImplementation(() => {}) |
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9
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const spyLog = jest.spyOn(console, 'log').mockImplementation(() => {}) |
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10
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11
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const file = 'src/test/output.txt' |
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12
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const path = join(file) |
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13
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14
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it('output has empty data', () => { |
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15
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const result = outputHelper('', null) |
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16
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expect(result).toBe(null) |
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17
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}) |
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18
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19
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it('output is console', () => { |
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20
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outputHelper(null, 'data') |
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21
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expect(spyLog).toHaveBeenCalled() |
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22
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expect(spyLog.mock.calls[0][0]).toContain('data') |
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23
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}) |
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24
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25
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it('output to file', done => { |
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26
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fs.truncateSync(path) |
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27
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outputHelper(file, 'data') |
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28
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setTimeout(() => { |
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29
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try { |
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30
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expect(fs.readFileSync(path, 'utf8')).toBe('data\r\n') |
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31
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done() |
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32
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} catch (err) { |
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33
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done.fail(err) |
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34
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} |
|
35
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}, TIMEOUT) |
|
36
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}) |
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37
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38
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it('output to not existed file', done => { |
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39
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const dummy = 'dummy.txt' |
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40
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outputHelper(dummy, 'data') |
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41
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setTimeout(() => { |
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42
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try { |
|
43
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expect(spyError).toHaveBeenCalled() |
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44
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expect(spyError.mock.calls[0][0]).toContain('Cannot write file to') |
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45
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done() |
|
46
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} catch (err) { |
|
47
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done.fail(err) |
|
48
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} |
|
49
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}, TIMEOUT) |
|
50
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}) |
|
51
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|
52
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it('output to write stream', done => { |
|
53
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const writeable = fs.createWriteStream(path) |
|
54
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outputHelper(writeable, 'data_stream') |
|
55
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setTimeout(() => { |
|
56
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try { |
|
57
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expect(fs.readFileSync(path, 'utf8')).toBe('data_stream\r\n') |
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58
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done() |
|
59
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} catch (err) { |
|
60
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done.fail(err) |
|
61
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} |
|
62
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}, TIMEOUT) |
|
63
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}) |
|
64
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}) |
|
65
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hal2dy /
html-scan
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This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.
To learn more about declaring variables in Javascript, see the MDN.