-
-
Notifications
You must be signed in to change notification settings - Fork 6.4k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Refactored dependency extractor test
- Loading branch information
1 parent
15e4438
commit 29ac745
Showing
1 changed file
with
235 additions
and
118 deletions.
There are no files selected for viewing
353 changes: 235 additions & 118 deletions
353
packages/jest-haste-map/src/lib/__tests__/dependencyExtractor.js
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,127 +1,244 @@ | ||
/** | ||
* Copyright (c) 2015-present, Facebook, Inc. | ||
* All rights reserved. | ||
* | ||
* This source code is licensed under the MIT license found in the | ||
* LICENSE file in the root directory of this source tree. | ||
* Copyright 2004-present Facebook. All Rights Reserved. | ||
* | ||
* @emails oncall+javascript_foundation | ||
* @flow | ||
*/ | ||
'use strict'; | ||
|
||
import {extract as extractRequires} from '../dependencyExtractor'; | ||
|
||
it('extracts both requires and imports from code', () => { | ||
const code = ` | ||
import module1 from 'module1'; | ||
const module2 = require('module2'); | ||
import('module3').then(module3 => {})'; | ||
import {extract} from '../dependencyExtractor'; | ||
|
||
describe('dependencyExtractor', () => { | ||
it('should not extract dependencies inside comments', () => { | ||
const code = ` | ||
// import a from 'ignore-line-comment'; | ||
// require('ignore-line-comment'); | ||
/* | ||
* import a from 'ignore-block-comment'; | ||
* require('ignore-block-comment'); | ||
*/ | ||
`; | ||
|
||
expect(extractRequires(code)).toEqual( | ||
new Set(['module1', 'module2', 'module3']), | ||
); | ||
}); | ||
|
||
it('extracts requires in order', () => { | ||
const code = ` | ||
const module1 = require('module1'); | ||
const module2 = require('module2'); | ||
const module3 = require('module3'); | ||
expect(extract(code)).toEqual(new Set()); | ||
}); | ||
|
||
it('should not extract dependencies inside comments (windows line endings)', () => { | ||
const code = [ | ||
'// const module1 = require("module1");', | ||
'/**', | ||
' * const module2 = require("module2");', | ||
' */', | ||
].join('\r\n'); | ||
|
||
expect(extract(code)).toEqual(new Set([])); | ||
}); | ||
|
||
it('should not extract dependencies inside comments (unicode line endings)', () => { | ||
const code = [ | ||
'// const module1 = require("module1");\u2028', | ||
'// const module1 = require("module2");\u2029', | ||
'/*\u2028', | ||
'const module2 = require("module3");\u2029', | ||
' */', | ||
].join(''); | ||
|
||
expect(extract(code)).toEqual(new Set([])); | ||
}); | ||
|
||
it('should extract dependencies from `import` statements', () => { | ||
const code = ` | ||
// Good | ||
import * as depNS from 'dep1'; | ||
import { | ||
a as aliased_a, | ||
b, | ||
} from 'dep2'; | ||
import depDefault from 'dep3'; | ||
import * as depNS, { | ||
a as aliased_a, | ||
b, | ||
}, depDefault from 'dep4'; | ||
// Bad | ||
foo . import ('inv1'); | ||
foo . export ('inv2'); | ||
`; | ||
|
||
expect(extractRequires(code)).toEqual( | ||
new Set(['module1', 'module2', 'module3']), | ||
); | ||
}); | ||
|
||
it('strips out comments from code', () => { | ||
const code = `// comment const module2 = require('module2');`; | ||
|
||
expect(extractRequires(code)).toEqual(new Set([])); | ||
}); | ||
|
||
it('ignores requires in comments', () => { | ||
const code = [ | ||
'// const module1 = require("module1");', | ||
'/**', | ||
' * const module2 = require("module2");', | ||
' */', | ||
].join('\n'); | ||
|
||
expect(extractRequires(code)).toEqual(new Set([])); | ||
}); | ||
|
||
it('ignores requires in comments with Windows line endings', () => { | ||
const code = [ | ||
'// const module1 = require("module1");', | ||
'/**', | ||
' * const module2 = require("module2");', | ||
' */', | ||
].join('\r\n'); | ||
|
||
expect(extractRequires(code)).toEqual(new Set([])); | ||
}); | ||
|
||
it('ignores requires in comments with unicode line endings', () => { | ||
const code = [ | ||
'// const module1 = require("module1");\u2028', | ||
'// const module1 = require("module2");\u2029', | ||
'/*\u2028', | ||
'const module2 = require("module3");\u2029', | ||
' */', | ||
].join(''); | ||
|
||
expect(extractRequires(code)).toEqual(new Set([])); | ||
}); | ||
|
||
it('does not contain duplicates', () => { | ||
const code = ` | ||
const module1 = require('module1'); | ||
const module1Dup = require('module1'); | ||
expect(extract(code)).toEqual(new Set(['dep1', 'dep2', 'dep3', 'dep4'])); | ||
}); | ||
|
||
it('should not extract dependencies from `import type/typeof` statements', () => { | ||
const code = ` | ||
// Bad | ||
import typeof {foo} from 'inv1'; | ||
import type {foo} from 'inv2'; | ||
`; | ||
|
||
expect(extractRequires(code)).toEqual(new Set(['module1'])); | ||
}); | ||
|
||
it('ignores type imports', () => { | ||
const code = [ | ||
"import type foo from 'bar';", | ||
'import type {', | ||
' bar,', | ||
' baz,', | ||
"} from 'wham'", | ||
].join('\r\n'); | ||
|
||
expect(extractRequires(code)).toEqual(new Set([])); | ||
}); | ||
|
||
it('ignores type exports', () => { | ||
const code = [ | ||
'export type Foo = number;', | ||
'export default {}', | ||
"export * from 'module1'", | ||
].join('\r\n'); | ||
|
||
expect(extractRequires(code)).toEqual(new Set(['module1'])); | ||
}); | ||
|
||
it('understands require.requireActual', () => { | ||
const code = `require.requireActual('pizza');`; | ||
expect(extractRequires(code)).toEqual(new Set(['pizza'])); | ||
}); | ||
|
||
it('understands jest.requireActual', () => { | ||
const code = `jest.requireActual('whiskey');`; | ||
expect(extractRequires(code)).toEqual(new Set(['whiskey'])); | ||
}); | ||
|
||
it('understands require.requireMock', () => { | ||
const code = `require.requireMock('cheeseburger');`; | ||
expect(extractRequires(code)).toEqual(new Set(['cheeseburger'])); | ||
}); | ||
|
||
it('understands jest.requireMock', () => { | ||
const code = `jest.requireMock('scotch');`; | ||
expect(extractRequires(code)).toEqual(new Set(['scotch'])); | ||
expect(extract(code)).toEqual(new Set([])); | ||
}); | ||
|
||
it('should extract dependencies from `export` statements', () => { | ||
const code = ` | ||
// Good | ||
export * as depNS from 'dep1'; | ||
export { | ||
a as aliased_a, | ||
b, | ||
} from 'dep2'; | ||
export depDefault from 'dep3'; | ||
export * as depNS, { | ||
a as aliased_a, | ||
b, | ||
}, depDefault from 'dep4'; | ||
// Bad | ||
foo . export ('inv1'); | ||
foo . export ('inv2'); | ||
`; | ||
expect(extract(code)).toEqual(new Set(['dep1', 'dep2', 'dep3', 'dep4'])); | ||
}); | ||
|
||
it('should extract dependencies from `export-from` statements', () => { | ||
const code = ` | ||
// Good | ||
export * as depNS from 'dep1'; | ||
export { | ||
a as aliased_a, | ||
b, | ||
} from 'dep2'; | ||
export depDefault from 'dep3'; | ||
export * as depNS, { | ||
a as aliased_a, | ||
b, | ||
}, depDefault from 'dep4'; | ||
// Bad | ||
foo . export ('inv1'); | ||
foo . export ('inv2'); | ||
`; | ||
expect(extract(code)).toEqual(new Set(['dep1', 'dep2', 'dep3', 'dep4'])); | ||
}); | ||
|
||
it('should not extract dependencies from `export type/typeof` statements', () => { | ||
const code = ` | ||
// Bad | ||
export typeof {foo} from 'inv1'; | ||
export type {foo} from 'inv2'; | ||
`; | ||
expect(extract(code)).toEqual(new Set([])); | ||
}); | ||
|
||
it('should extract dependencies from `require` calls', () => { | ||
const code = ` | ||
// Good | ||
require('dep1'); | ||
const dep2 = require( | ||
"dep2", | ||
); | ||
if (require(\`dep3\`).cond) {} | ||
// Bad | ||
foo . require('inv1') | ||
xrequire('inv2'); | ||
requirex('inv3'); | ||
require('inv4', 'inv5'); | ||
`; | ||
expect(extract(code)).toEqual(new Set(['dep1', 'dep2', 'dep3'])); | ||
}); | ||
|
||
it('should extract dependencies from `require.requireActual` calls', () => { | ||
const code = ` | ||
// Good | ||
require.requireActual('dep1'); | ||
const dep2 = require.requireActual( | ||
"dep2", | ||
); | ||
if (require.requireActual(\`dep3\`).cond) {} | ||
require | ||
.requireActual('dep4'); | ||
// Bad | ||
foo . require.requireActual('inv1') | ||
xrequire.requireActual('inv2'); | ||
require.requireActualx('inv3'); | ||
require.requireActual('inv4', 'inv5'); | ||
`; | ||
expect(extract(code)).toEqual(new Set(['dep1', 'dep2', 'dep3', 'dep4'])); | ||
}); | ||
|
||
it('should extract dependencies from `require.requireMock` calls', () => { | ||
const code = ` | ||
// Good | ||
require.requireMock('dep1'); | ||
const dep2 = require.requireMock( | ||
"dep2", | ||
); | ||
if (require.requireMock(\`dep3\`).cond) {} | ||
require | ||
.requireMock('dep4'); | ||
// Bad | ||
foo . require.requireMock('inv1') | ||
xrequire.requireMock('inv2'); | ||
require.requireMockx('inv3'); | ||
require.requireMock('inv4', 'inv5'); | ||
`; | ||
expect(extract(code)).toEqual(new Set(['dep1', 'dep2', 'dep3', 'dep4'])); | ||
}); | ||
|
||
it('should extract dependencies from `jest.requireActual` calls', () => { | ||
const code = ` | ||
// Good | ||
jest.requireActual('dep1'); | ||
const dep2 = jest.requireActual( | ||
"dep2", | ||
); | ||
if (jest.requireActual(\`dep3\`).cond) {} | ||
require | ||
.requireActual('dep4'); | ||
// Bad | ||
foo . jest.requireActual('inv1') | ||
xjest.requireActual('inv2'); | ||
jest.requireActualx('inv3'); | ||
jest.requireActual('inv4', 'inv5'); | ||
`; | ||
expect(extract(code)).toEqual(new Set(['dep1', 'dep2', 'dep3', 'dep4'])); | ||
}); | ||
|
||
it('should extract dependencies from `jest.requireMock` calls', () => { | ||
const code = ` | ||
// Good | ||
jest.requireMock('dep1'); | ||
const dep2 = jest.requireMock( | ||
"dep2", | ||
); | ||
if (jest.requireMock(\`dep3\`).cond) {} | ||
require | ||
.requireMock('dep4'); | ||
// Bad | ||
foo . jest.requireMock('inv1') | ||
xjest.requireMock('inv2'); | ||
jest.requireMockx('inv3'); | ||
jest.requireMock('inv4', 'inv5'); | ||
`; | ||
expect(extract(code)).toEqual(new Set(['dep1', 'dep2', 'dep3', 'dep4'])); | ||
}); | ||
|
||
it('should extract dependencies from `jest.genMockFromModule` calls', () => { | ||
const code = ` | ||
// Good | ||
jest.genMockFromModule('dep1'); | ||
const dep2 = jest.genMockFromModule( | ||
"dep2", | ||
); | ||
if (jest.genMockFromModule(\`dep3\`).cond) {} | ||
require | ||
.requireMock('dep4'); | ||
// Bad | ||
foo . jest.genMockFromModule('inv1') | ||
xjest.genMockFromModule('inv2'); | ||
jest.genMockFromModulex('inv3'); | ||
jest.genMockFromModule('inv4', 'inv5'); | ||
`; | ||
expect(extract(code)).toEqual(new Set(['dep1', 'dep2', 'dep3', 'dep4'])); | ||
}); | ||
}); |