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* Install test dependencies. * Add initial test files. These files were created using a simplistic AST manipulator using `recast` to preserve formatting. There's bound to be a huge chunk of errors, but this serves as a good start. QUnit was replaced with Mocha, with ES2015 imports running via `esm`. As far as possible, QUnit-specific syntax has been replaced with Mocha's `describe` and `it`, while the native Node.js `assert` module is used for assertions. Files in the `test` directory ending in `.test.js` will be treated as test files. * Add initial passing files to test run.
30 lines
909 B
JavaScript
30 lines
909 B
JavaScript
import assert from 'assert';
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import lodashStable from 'lodash';
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import shuffle from '../shuffle.js';
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describe('shuffle', function() {
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var array = [1, 2, 3],
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object = { 'a': 1, 'b': 2, 'c': 3 };
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it('should return a new array', function() {
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assert.notStrictEqual(shuffle(array), array);
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});
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it('should contain the same elements after a collection is shuffled', function() {
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assert.deepStrictEqual(shuffle(array).sort(), array);
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assert.deepStrictEqual(shuffle(object).sort(), array);
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});
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it('should shuffle small collections', function() {
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var actual = lodashStable.times(1000, function() {
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return shuffle([1, 2]);
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});
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assert.deepStrictEqual(lodashStable.sortBy(lodashStable.uniqBy(actual, String), '0'), [[1, 2], [2, 1]]);
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});
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it('should treat number values for `collection` as empty', function() {
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assert.deepStrictEqual(shuffle(1), []);
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});
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});
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