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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.
50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
import assert from 'assert';
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import lodashStable from 'lodash';
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import { _ } from './utils.js';
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describe('pull methods', function() {
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lodashStable.each(['pull', 'pullAll', 'pullAllWith'], function(methodName) {
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var func = _[methodName],
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isPull = methodName == 'pull';
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function pull(array, values) {
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return isPull
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? func.apply(undefined, [array].concat(values))
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: func(array, values);
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}
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it('`_.' + methodName + '` should modify and return the array', function() {
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var array = [1, 2, 3],
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actual = pull(array, [1, 3]);
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assert.strictEqual(actual, array);
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assert.deepStrictEqual(array, [2]);
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});
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it('`_.' + methodName + '` should preserve holes in arrays', function() {
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var array = [1, 2, 3, 4];
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delete array[1];
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delete array[3];
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pull(array, [1]);
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assert.ok(!('0' in array));
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assert.ok(!('2' in array));
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});
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it('`_.' + methodName + '` should treat holes as `undefined`', function() {
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var array = [1, 2, 3];
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delete array[1];
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pull(array, [undefined]);
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assert.deepStrictEqual(array, [1, 3]);
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});
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it('`_.' + methodName + '` should match `NaN`', function() {
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var array = [1, NaN, 3, NaN];
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pull(array, [NaN]);
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assert.deepStrictEqual(array, [1, 3]);
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});
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});
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});
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