mirror of https://github.com/hashicorp/consul
48 lines
1.4 KiB
JavaScript
48 lines
1.4 KiB
JavaScript
/**
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* Copyright (c) HashiCorp, Inc.
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* SPDX-License-Identifier: MPL-2.0
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*/
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import { module, test } from 'qunit';
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import Helper from 'consul-ui/helpers/document-attrs';
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const root = {
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classList: {
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add: () => {},
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remove: () => {},
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},
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};
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module('Unit | Helper | document-attrs', function () {
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test('synchronize adds and removes values correctly', function (assert) {
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let attrs, actual;
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// add first helper
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const a = new Helper();
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attrs = a.synchronize(root, {
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class: 'a b a a a a',
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});
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actual = [...attrs.get('class').keys()];
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assert.deepEqual(actual, ['a', 'b'], 'keys are adding correctly');
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const b = new Helper();
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// add second helper
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attrs = b.synchronize(root, {
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class: 'z a a a a',
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});
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actual = [...attrs.get('class').keys()];
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assert.deepEqual(actual, ['a', 'b', 'z'], 'more keys are added correctly');
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// remove second helper
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b.synchronize(root);
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actual = [...attrs.get('class').keys()];
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assert.deepEqual(actual, ['a', 'b'], 'keys are removed, leaving keys that need to remain');
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// remove first helper
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a.synchronize(root);
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assert.strictEqual(
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typeof attrs.get('class'),
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'undefined',
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'property is completely removed once its empty'
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);
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assert.throws(() => {
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a.synchronize(root, { data: 'a' });
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}, `throws an error if the attrs isn't class`);
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});
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});
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