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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.
73 lines
2.3 KiB
JavaScript
73 lines
2.3 KiB
JavaScript
import assert from 'assert';
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import lodashStable from 'lodash';
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import { _, falsey, stubArray } from './utils.js';
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describe('unzip and zip', function() {
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lodashStable.each(['unzip', 'zip'], function(methodName, index) {
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var func = _[methodName];
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func = lodashStable.bind(index ? func.apply : func.call, func, null);
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var object = {
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'an empty array': [
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[],
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[]
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],
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'0-tuples': [
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[[], []],
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[]
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],
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'2-tuples': [
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[['barney', 'fred'], [36, 40]],
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[['barney', 36], ['fred', 40]]
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],
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'3-tuples': [
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[['barney', 'fred'], [36, 40], [false, true]],
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[['barney', 36, false], ['fred', 40, true]]
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]
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};
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lodashStable.forOwn(object, function(pair, key) {
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it('`_.' + methodName + '` should work with ' + key, function() {
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var actual = func(pair[0]);
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assert.deepStrictEqual(actual, pair[1]);
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assert.deepStrictEqual(func(actual), actual.length ? pair[0] : []);
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});
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});
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it('`_.' + methodName + '` should work with tuples of different lengths', function() {
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var pair = [
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[['barney', 36], ['fred', 40, false]],
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[['barney', 'fred'], [36, 40], [undefined, false]]
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];
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var actual = func(pair[0]);
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assert.ok('0' in actual[2]);
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assert.deepStrictEqual(actual, pair[1]);
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actual = func(actual);
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assert.ok('2' in actual[0]);
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assert.deepStrictEqual(actual, [['barney', 36, undefined], ['fred', 40, false]]);
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});
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it('`_.' + methodName + '` should treat falsey values as empty arrays', function() {
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var expected = lodashStable.map(falsey, stubArray);
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var actual = lodashStable.map(falsey, function(value) {
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return func([value, value, value]);
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});
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assert.deepStrictEqual(actual, expected);
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});
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it('`_.' + methodName + '` should ignore values that are not arrays or `arguments` objects', function() {
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var array = [[1, 2], [3, 4], null, undefined, { '0': 1 }];
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assert.deepStrictEqual(func(array), [[1, 3], [2, 4]]);
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});
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it('`_.' + methodName + '` should support consuming its return value', function() {
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var expected = [['barney', 'fred'], [36, 40]];
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assert.deepStrictEqual(func(func(func(func(expected)))), expected);
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});
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});
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});
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