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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.
23 lines
882 B
JavaScript
23 lines
882 B
JavaScript
import assert from 'assert';
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import lodashStable from 'lodash';
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import { LARGE_ARRAY_SIZE, square, isEven } from './utils.js';
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describe('find and findLast', function() {
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lodashStable.each(['find', 'findLast'], function(methodName) {
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var isFind = methodName == 'find';
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it('`_.' + methodName + '` should support shortcut fusion', function() {
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var findCount = 0,
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mapCount = 0,
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array = lodashStable.range(1, LARGE_ARRAY_SIZE + 1),
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iteratee = function(value) { mapCount++; return square(value); },
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predicate = function(value) { findCount++; return isEven(value); },
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actual = _(array).map(iteratee)[methodName](predicate);
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assert.strictEqual(findCount, isFind ? 2 : 1);
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assert.strictEqual(mapCount, isFind ? 2 : 1);
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assert.strictEqual(actual, isFind ? 4 : square(LARGE_ARRAY_SIZE));
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});
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});
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});
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