consul/ui/packages/consul-ui/tests/unit/helpers/document-attrs-test.js
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Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
2023-08-11 09:12:13 -04:00

48 lines
1.4 KiB
JavaScript

/**
* Copyright (c) HashiCorp, Inc.
* SPDX-License-Identifier: BUSL-1.1
*/
import { module, test } from 'qunit';
import Helper from 'consul-ui/helpers/document-attrs';
const root = {
classList: {
add: () => {},
remove: () => {},
},
};
module('Unit | Helper | document-attrs', function () {
test('synchronize adds and removes values correctly', function (assert) {
let attrs, actual;
// add first helper
const a = new Helper();
attrs = a.synchronize(root, {
class: 'a b a a a a',
});
actual = [...attrs.get('class').keys()];
assert.deepEqual(actual, ['a', 'b'], 'keys are adding correctly');
const b = new Helper();
// add second helper
attrs = b.synchronize(root, {
class: 'z a a a a',
});
actual = [...attrs.get('class').keys()];
assert.deepEqual(actual, ['a', 'b', 'z'], 'more keys are added correctly');
// remove second helper
b.synchronize(root);
actual = [...attrs.get('class').keys()];
assert.deepEqual(actual, ['a', 'b'], 'keys are removed, leaving keys that need to remain');
// remove first helper
a.synchronize(root);
assert.strictEqual(
typeof attrs.get('class'),
'undefined',
'property is completely removed once its empty'
);
assert.throws(() => {
a.synchronize(root, { data: 'a' });
}, `throws an error if the attrs isn't class`);
});
});