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Push — master ( f44c17...6e593c )

by Vitaly

created 2017-10-18 23:16 UTC

test.js (2 issues)

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Unused Code 1

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"use strict";

/*  ------------------------------------------------------------------------ */
                    
require ('chai').should ()

/*  ------------------------------------------------------------------------ */

describe ('impl/partition', () => {

    const partition = require ('./impl/partition')
    const spans     = partition ([ 'a', 'b', 'c', undefined, undefined, 42], x => typeof x)

    spans.should.deep.equal ([ { label: 'string',    items: ['a', 'b', 'c'] },
                               { label: 'undefined', items: [undefined, undefined] },
                               { label: 'number',    items: [42] } ])
})

/*  ------------------------------------------------------------------------ */

describe ('StackTracey', () => {

    const StackTracey = require ('./stacktracey'); StackTracey.resetCache ()

    const shouldBeVisibleInStackTrace = () => new StackTracey () // @hide

    it ('works', () => {

        const stack = shouldBeVisibleInStackTrace ()

        stack.should.be.an.instanceof (Array)

        stack[0].should.deep.equal ({
            beforeParse: 'at shouldBeVisibleInStackTrace (' + process.cwd () + '/test.js:25:47)',
            callee: 'shouldBeVisibleInStackTrace',
            index: false,
            native: false,
            file: process.cwd () + '/test.js',
            line: 25,
            column: 47,
            calleeShort: 'shouldBeVisibleInStackTrace',
            fileName: 'test.js',
            fileRelative: 'test.js',
            fileShort: 'test.js',
            thirdParty: false
        })
    })

    it ('allows to read sources', () => {

        const stack = shouldBeVisibleInStackTrace ().withSources // @hide

              stack.should.be.an.instanceof (StackTracey)
              stack[0].beforeParse.should.not.be.undefined // should preserve previous fields

              stack[0].sourceLine.should.equal ('    const shouldBeVisibleInStackTrace = () => new StackTracey () ')
              stack[0].hide.should.equal (true) // reads // @hide marker
              stack[1].hide.should.equal (true) // reads // @hide marker

        const cleanStack = stack.clean

        cleanStack.should.be.an.instanceof (StackTracey)

        StackTracey.locationsEqual (cleanStack[0], stack[0]).should.equal (true)  // should not clean top element
        StackTracey.locationsEqual (cleanStack[1], stack[1]).should.equal (false) // should clean second element (due to // @hide)
    })

    it ('allows creation from array + groups duplicate lines', () => {

        const stack = new StackTracey ([
            { file: 'yo.js',  line: 11, callee: 'a.funkktion',   calleeShort: 'a' },
            { file: 'yo.js',  line: 10, callee: 'foobar.boobar', calleeShort: 'foobar' },
            { file: 'yo.js',  line: 10, callee: 'foobar.boobar', calleeShort: 'foobar' },
            { file: 'lol.js', line: 10, callee: '',              calleeShort: '' },
        ])

        const clean = stack.clean.map (x => Object.assign ({
                                                    file: x.file,
                                                    line: x.line,
                                                    callee: x.callee,
                                                    calleeShort: x.calleeShort }))

        clean.should.be.an.instanceof (StackTracey)

        Array.from (clean).should.deep.equal ([ // .should does not recognize StackTracey as normal array...

            { file: process.cwd () + '/yo.js',  line: 11, callee: 'a.funkktion',   calleeShort: 'a' },
            { file: process.cwd () + '/yo.js',  line: 10, callee: 'foobar.boobar → foobar.boobar', calleeShort: 'foobar → foobar' },
            { file: process.cwd () + '/lol.js', line: 10, callee: '',              calleeShort: '' },
        ])
    })

    it ('handles inaccessible files', () => {

        const stack = shouldBeVisibleInStackTrace ()
              stack[0].file = '^___^'
              stack.withSources[0].sourceLine.should.equal ('')
              stack.withSources[0].error.should.be.an.instanceof (Error)
    })

    it ('exposes some Array methods', () => {

        const stack = shouldBeVisibleInStackTrace ()
        const sliced = stack.slice (1)
        const deltaLength = (stack.length - sliced.length)

        deltaLength.should.equal (1)
        sliced.should.be.an.instanceof (StackTracey)

        sliced.filter (x => true).should.be.an.instanceof (StackTracey)

    })

    it ('works with sourcemaps', () => {

        const path = require ('path'),
              mkay = require ('./test_files/mkay.uglified')

        try {
            mkay ()
        }
        catch (e) {

            e.message.should.equal ('mkay')

            const top = new StackTracey (e).withSources[0]

            top.line        .should.equal (4)
            top.column      .should.equal (22)
            top.sourceLine  .should.equal ('\t\t\t\t\tthrow new Error (\'mkay\') }')

            top.file        .should.equal (path.resolve ('./test_files/mkay.js'))
            top.fileShort   .should.equal ('test_files/mkay.js')
            top.fileName    .should.equal ('mkay.js')
        }
    })

    it ('pretty printing works', function prettyTest () {

        const pretty = new StackTracey ().clean.pretty

        pretty.split ('\n')[0].should.equal ('at prettyTest                      test.js:138    const pretty = new StackTracey ().clean.pretty')
    })

    it ('exposes Array methods', () => {

        const stack = new StackTracey ([
            { file: 'foo' },
            { file: 'bar' }
        ])

        const mapped = stack.map ((x, i) => Object.assign (x, { i }))

        mapped.should.deep.equal ([ { file: 'foo', i: 0 }, { file: 'bar', i: 1 } ])
        mapped.should.be.an.instanceof (Array)
        mapped.should.be.an.instanceof (StackTracey)

        stack.reduce ((memo, x) => memo + x.file, '').should.equal ('foobar')

        const filtered = stack.filter (x => x.file === 'bar')

        filtered.length.should.equal (1)
        filtered[0].should.deep.equal ({ file: 'bar', i: 1 })
    })

    it ('computes relative path correctly', () => {
        
        StackTracey.relativePath  ('webpack:///~/jquery/dist/jquery.js')
                    .should.equal (            '~/jquery/dist/jquery.js')

        StackTracey.relativePath  ('webpack:/webpack/bootstrap')
                    .should.equal (          'webpack/bootstrap')
    })

    it ('computes short path correctly', () => {

        StackTracey.shortenPath   ('webpack/bootstrap/jquery/dist/jquery.js')
                    .should.equal ('jquery/dist/jquery.js')

        StackTracey.shortenPath   ('node_modules/jquery/dist/jquery.js')
                    .should.equal ('jquery/dist/jquery.js')
    })

    const nodeVersion = Number (process.version.match(/^v(\d+\.\d+)/)[1])
    if (nodeVersion >= 5) {

        it ('recognizes SyntaxErrors', () => {

            try { require ('./test_files/syntax_error.js') }
            catch (e) {

                const stack = new StackTracey (e).clean

                stack[0].syntaxError.should.equal (true)
                stack[0].column.should.equal (5)
                stack.pretty.split ('\n')[0].should.equal ('at (syntax error)                  test_files/syntax_error.js:2  foo->bar ()                                     ')
            }
        })
    }

    it ('implements StackTracey.isThirdParty', () => {

        StackTracey.isThirdParty.include (path => path === 'test.js')

        new StackTracey ()[0].thirdParty.should.equal (true)

        StackTracey.isThirdParty.except (path => path === 'test.js')
        
        new StackTracey ()[0].thirdParty.should.equal (false)
    })

    it ('.withSource', () => {

        const line = new StackTracey ().withSource (0).sourceLine.trim ()
        line.should.equal ('const line = new StackTracey ().withSource (0).sourceLine.trim ()')
    })

    it ('.at', () => {
        
        new StackTracey ().at (0).file.should.equal ('/Users/mac/stacktracey/test.js')
    })
})





1			"use strict";
2
3			/* ------------------------------------------------------------------------ */
4
5			require ('chai').should ()
6
7			/* ------------------------------------------------------------------------ */
8
9			describe ('impl/partition', () => {
10
11			const partition = require ('./impl/partition')
12			const spans = partition ([ 'a', 'b', 'c', undefined, undefined, 42], x => typeof x)
13
14			spans.should.deep.equal ([ { label: 'string', items: ['a', 'b', 'c'] },
15			{ label: 'undefined', items: [undefined, undefined] },
16			{ label: 'number', items: [42] } ])
17			})
18
19			/* ------------------------------------------------------------------------ */
20
21			describe ('StackTracey', () => {
22
23			const StackTracey = require ('./stacktracey'); StackTracey.resetCache ()
24
25			const shouldBeVisibleInStackTrace = () => new StackTracey () // @hide
26
27			it ('works', () => {
28
29			const stack = shouldBeVisibleInStackTrace ()
30
31			stack.should.be.an.instanceof (Array)
32
33			stack[0].should.deep.equal ({
34			beforeParse: 'at shouldBeVisibleInStackTrace (' + process.cwd () + '/test.js:25:47)',
35			callee: 'shouldBeVisibleInStackTrace',
36			index: false,
37			native: false,
38			file: process.cwd () + '/test.js',
39			line: 25,
40			column: 47,
41			calleeShort: 'shouldBeVisibleInStackTrace',
42			fileName: 'test.js',
43			fileRelative: 'test.js',
44			fileShort: 'test.js',
45			thirdParty: false
46			})
47			})
48
49			it ('allows to read sources', () => {
50
51			const stack = shouldBeVisibleInStackTrace ().withSources // @hide
52
53			stack.should.be.an.instanceof (StackTracey)
54			stack[0].beforeParse.should.not.be.undefined // should preserve previous fields
			0 ignored issues – show introduced 2017-07-23 10:17 UTC by Report Bug Copy Issue Report Show Similar Issues like this The result of the property access to `stack.0.beforeParse.should.not.be.undefined` is not used. Loading history...
55			stack[0].sourceLine.should.equal (' const shouldBeVisibleInStackTrace = () => new StackTracey () ')
56			stack[0].hide.should.equal (true) // reads // @hide marker
57			stack[1].hide.should.equal (true) // reads // @hide marker
58
59			const cleanStack = stack.clean
60
61			cleanStack.should.be.an.instanceof (StackTracey)
62
63			StackTracey.locationsEqual (cleanStack[0], stack[0]).should.equal (true) // should not clean top element
64			StackTracey.locationsEqual (cleanStack[1], stack[1]).should.equal (false) // should clean second element (due to // @hide)
65			})
66
67			it ('allows creation from array + groups duplicate lines', () => {
68
69			const stack = new StackTracey ([
70			{ file: 'yo.js', line: 11, callee: 'a.funkktion', calleeShort: 'a' },
71			{ file: 'yo.js', line: 10, callee: 'foobar.boobar', calleeShort: 'foobar' },
72			{ file: 'yo.js', line: 10, callee: 'foobar.boobar', calleeShort: 'foobar' },
73			{ file: 'lol.js', line: 10, callee: '', calleeShort: '' },
74			])
75
76			const clean = stack.clean.map (x => Object.assign ({
77			file: x.file,
78			line: x.line,
79			callee: x.callee,
80			calleeShort: x.calleeShort }))
81
82			clean.should.be.an.instanceof (StackTracey)
83
84			Array.from (clean).should.deep.equal ([ // .should does not recognize StackTracey as normal array...
85
86			{ file: process.cwd () + '/yo.js', line: 11, callee: 'a.funkktion', calleeShort: 'a' },
87			{ file: process.cwd () + '/yo.js', line: 10, callee: 'foobar.boobar → foobar.boobar', calleeShort: 'foobar → foobar' },
88			{ file: process.cwd () + '/lol.js', line: 10, callee: '', calleeShort: '' },
89			])
90			})
91
92			it ('handles inaccessible files', () => {
93
94			const stack = shouldBeVisibleInStackTrace ()
95			stack[0].file = '^___^'
96			stack.withSources[0].sourceLine.should.equal ('')
97			stack.withSources[0].error.should.be.an.instanceof (Error)
98			})
99
100			it ('exposes some Array methods', () => {
101
102			const stack = shouldBeVisibleInStackTrace ()
103			const sliced = stack.slice (1)
104			const deltaLength = (stack.length - sliced.length)
105
106			deltaLength.should.equal (1)
107			sliced.should.be.an.instanceof (StackTracey)
108
109			sliced.filter (x => true).should.be.an.instanceof (StackTracey)
			0 ignored issues – show Unused Code introduced 2017-07-23 10:17 UTC by Report Bug Copy Issue Report Show Similar Issues like this The parameter `x` is not used and could be removed. This check looks for parameters in functions that are not used in the function body and are not followed by other parameters which are used inside the function. Loading history...
110			})
111
112			it ('works with sourcemaps', () => {
113
114			const path = require ('path'),
115			mkay = require ('./test_files/mkay.uglified')
116
117			try {
118			mkay ()
119			}
120			catch (e) {
121
122			e.message.should.equal ('mkay')
123
124			const top = new StackTracey (e).withSources[0]
125
126			top.line .should.equal (4)
127			top.column .should.equal (22)
128			top.sourceLine .should.equal ('\t\t\t\t\tthrow new Error (\'mkay\') }')
129
130			top.file .should.equal (path.resolve ('./test_files/mkay.js'))
131			top.fileShort .should.equal ('test_files/mkay.js')
132			top.fileName .should.equal ('mkay.js')
133			}
134			})
135
136			it ('pretty printing works', function prettyTest () {
137
138			const pretty = new StackTracey ().clean.pretty
139
140			pretty.split ('\n')[0].should.equal ('at prettyTest test.js:138 const pretty = new StackTracey ().clean.pretty')
141			})
142
143			it ('exposes Array methods', () => {
144
145			const stack = new StackTracey ([
146			{ file: 'foo' },
147			{ file: 'bar' }
148			])
149
150			const mapped = stack.map ((x, i) => Object.assign (x, { i }))
151
152			mapped.should.deep.equal ([ { file: 'foo', i: 0 }, { file: 'bar', i: 1 } ])
153			mapped.should.be.an.instanceof (Array)
154			mapped.should.be.an.instanceof (StackTracey)
155
156			stack.reduce ((memo, x) => memo + x.file, '').should.equal ('foobar')
157
158			const filtered = stack.filter (x => x.file === 'bar')
159
160			filtered.length.should.equal (1)
161			filtered[0].should.deep.equal ({ file: 'bar', i: 1 })
162			})
163
164			it ('computes relative path correctly', () => {
165
166			StackTracey.relativePath ('webpack:///~/jquery/dist/jquery.js')
167			.should.equal ( '~/jquery/dist/jquery.js')
168
169			StackTracey.relativePath ('webpack:/webpack/bootstrap')
170			.should.equal ( 'webpack/bootstrap')
171			})
172
173			it ('computes short path correctly', () => {
174
175			StackTracey.shortenPath ('webpack/bootstrap/jquery/dist/jquery.js')
176			.should.equal ('jquery/dist/jquery.js')
177
178			StackTracey.shortenPath ('node_modules/jquery/dist/jquery.js')
179			.should.equal ('jquery/dist/jquery.js')
180			})
181
182			const nodeVersion = Number (process.version.match(/^v(\d+\.\d+)/)[1])
183			if (nodeVersion >= 5) {
184
185			it ('recognizes SyntaxErrors', () => {
186
187			try { require ('./test_files/syntax_error.js') }
188			catch (e) {
189
190			const stack = new StackTracey (e).clean
191
192			stack[0].syntaxError.should.equal (true)
193			stack[0].column.should.equal (5)
194			stack.pretty.split ('\n')[0].should.equal ('at (syntax error) test_files/syntax_error.js:2 foo->bar () ')
195			}
196			})
197			}
198
199			it ('implements StackTracey.isThirdParty', () => {
200
201			StackTracey.isThirdParty.include (path => path === 'test.js')
202
203			new StackTracey ()[0].thirdParty.should.equal (true)
204
205			StackTracey.isThirdParty.except (path => path === 'test.js')
206
207			new StackTracey ()[0].thirdParty.should.equal (false)
208			})
209
210			it ('.withSource', () => {
211
212			const line = new StackTracey ().withSource (0).sourceLine.trim ()
213			line.should.equal ('const line = new StackTracey ().withSource (0).sourceLine.trim ()')
214			})
215
216			it ('.at', () => {
217
218			new StackTracey ().at (0).file.should.equal ('/Users/mac/stacktracey/test.js')
219			})
220			})
221
222
223
224

xpl / stacktracey

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test.js (2 issues)

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