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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.
53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
import assert from 'assert';
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import lodashStable from 'lodash';
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import { _, slice, MAX_ARRAY_LENGTH, MAX_ARRAY_INDEX } from './utils.js';
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describe('sortedIndexBy methods', function() {
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lodashStable.each(['sortedIndexBy', 'sortedLastIndexBy'], function(methodName) {
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var func = _[methodName],
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isSortedIndexBy = methodName == 'sortedIndexBy';
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it('`_.' + methodName + '` should provide correct `iteratee` arguments', function() {
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var args;
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func([30, 50], 40, function() {
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args || (args = slice.call(arguments));
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});
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assert.deepStrictEqual(args, [40]);
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});
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it('`_.' + methodName + '` should work with `_.property` shorthands', function() {
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var objects = [{ 'x': 30 }, { 'x': 50 }],
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actual = func(objects, { 'x': 40 }, 'x');
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assert.strictEqual(actual, 1);
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});
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it('`_.' + methodName + '` should support arrays larger than `MAX_ARRAY_LENGTH / 2`', function() {
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lodashStable.each([Math.ceil(MAX_ARRAY_LENGTH / 2), MAX_ARRAY_LENGTH], function(length) {
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var array = [],
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values = [MAX_ARRAY_LENGTH, NaN, undefined];
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array.length = length;
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lodashStable.each(values, function(value) {
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var steps = 0;
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var actual = func(array, value, function(value) {
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steps++;
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return value;
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});
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var expected = (isSortedIndexBy ? !lodashStable.isNaN(value) : lodashStable.isFinite(value))
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? 0
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: Math.min(length, MAX_ARRAY_INDEX);
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assert.ok(steps == 32 || steps == 33);
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assert.strictEqual(actual, expected);
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});
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});
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});
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});
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});
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