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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.
67 lines
2.1 KiB
JavaScript
67 lines
2.1 KiB
JavaScript
import assert from 'assert';
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import lodashStable from 'lodash';
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import { objectProto } from './utils.js';
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import defaults from '../defaults.js';
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describe('defaults', function() {
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it('should assign source properties if missing on `object`', function() {
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var actual = defaults({ 'a': 1 }, { 'a': 2, 'b': 2 });
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assert.deepStrictEqual(actual, { 'a': 1, 'b': 2 });
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});
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it('should accept multiple sources', function() {
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var expected = { 'a': 1, 'b': 2, 'c': 3 },
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actual = defaults({ 'a': 1, 'b': 2 }, { 'b': 3 }, { 'c': 3 });
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assert.deepStrictEqual(actual, expected);
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actual = defaults({ 'a': 1, 'b': 2 }, { 'b': 3, 'c': 3 }, { 'c': 2 });
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assert.deepStrictEqual(actual, expected);
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});
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it('should not overwrite `null` values', function() {
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var actual = defaults({ 'a': null }, { 'a': 1 });
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assert.strictEqual(actual.a, null);
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});
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it('should overwrite `undefined` values', function() {
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var actual = defaults({ 'a': undefined }, { 'a': 1 });
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assert.strictEqual(actual.a, 1);
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});
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it('should assign `undefined` values', function() {
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var source = { 'a': undefined, 'b': 1 },
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actual = defaults({}, source);
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assert.deepStrictEqual(actual, { 'a': undefined, 'b': 1 });
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});
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it('should assign properties that shadow those on `Object.prototype`', function() {
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var object = {
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'constructor': objectProto.constructor,
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'hasOwnProperty': objectProto.hasOwnProperty,
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'isPrototypeOf': objectProto.isPrototypeOf,
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'propertyIsEnumerable': objectProto.propertyIsEnumerable,
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'toLocaleString': objectProto.toLocaleString,
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'toString': objectProto.toString,
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'valueOf': objectProto.valueOf
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};
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var source = {
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'constructor': 1,
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'hasOwnProperty': 2,
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'isPrototypeOf': 3,
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'propertyIsEnumerable': 4,
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'toLocaleString': 5,
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'toString': 6,
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'valueOf': 7
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};
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var expected = lodashStable.clone(source);
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assert.deepStrictEqual(defaults({}, source), expected);
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expected = lodashStable.clone(object);
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assert.deepStrictEqual(defaults({}, object, source), expected);
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});
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});
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