41 lines
1.3 KiB
TypeScript
41 lines
1.3 KiB
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { assert } from 'chai';
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import { getClassNamesFor } from '../../util/getClassNamesFor';
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describe('getClassNamesFor', () => {
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it('returns a function', () => {
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const f = getClassNamesFor('hello-world');
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assert.isFunction(f);
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});
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it('returns a function that adds a modifier', () => {
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const f = getClassNamesFor('module');
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assert.equal(f('__modifier'), 'module__modifier');
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});
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it('does not add anything if there is no modifier', () => {
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const f = getClassNamesFor('module');
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assert.equal(f(), '');
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assert.equal(f(undefined && '__modifier'), '');
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});
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it('but does return the top level module if the modifier is empty string', () => {
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const f = getClassNamesFor('module1', 'module2');
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assert.equal(f(''), 'module1 module2');
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});
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it('adds multiple class names', () => {
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const f = getClassNamesFor('module1', 'module2', 'module3');
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assert.equal(
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f('__modifier'),
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'module1__modifier module2__modifier module3__modifier'
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);
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});
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it('skips parent modules that are undefined', () => {
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const f = getClassNamesFor('module1', undefined, 'module3');
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assert.equal(f('__modifier'), 'module1__modifier module3__modifier');
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});
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});
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