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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.
32 lines
1.1 KiB
JavaScript
32 lines
1.1 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('before', function() {
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function before(n, times) {
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var count = 0;
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lodashStable.times(times, _.before(n, function() { count++; }));
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return count;
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}
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it('should create a function that invokes `func` after `n` calls', function() {
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assert.strictEqual(before(5, 4), 4, 'before(n) should invoke `func` before being called `n` times');
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assert.strictEqual(before(5, 6), 4, 'before(n) should not invoke `func` after being called `n - 1` times');
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assert.strictEqual(before(0, 0), 0, 'before(0) should not invoke `func` immediately');
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assert.strictEqual(before(0, 1), 0, 'before(0) should not invoke `func` when called');
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});
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it('should coerce `n` values of `NaN` to `0`', function() {
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assert.strictEqual(before(NaN, 1), 0);
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});
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it('should use `this` binding of function', function() {
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var before = _.before(2, function() { return ++this.count; }),
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object = { 'before': before, 'count': 0 };
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object.before();
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assert.strictEqual(object.before(), 1);
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assert.strictEqual(object.count, 1);
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});
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});
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