getInitials: handle more cases
See [#5029]][0]. [0]: https://github.com/signalapp/Signal-Desktop/pull/5029
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2 changed files with 81 additions and 12 deletions
62
ts/test-both/util/getInitials_test.ts
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62
ts/test-both/util/getInitials_test.ts
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// 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 { getInitials } from '../../util/getInitials';
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describe('getInitials', () => {
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it('returns undefined when passed undefined', () => {
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assert.isUndefined(getInitials(undefined));
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});
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it('returns undefined when passed an empty string', () => {
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assert.isUndefined(getInitials(''));
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});
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it('returns undefined when passed a string with no letters', () => {
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assert.isUndefined(getInitials('123 !@#$%'));
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});
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it('returns the first letter of a name that is one ASCII word', () => {
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assert.strictEqual(getInitials('Foo'), 'F');
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assert.strictEqual(getInitials('Bo'), 'B');
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});
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[
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'Foo Bar',
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'foo bar',
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'F Bar',
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'Foo B',
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'FB',
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'F.B.',
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'0Foo 1Bar',
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"Foo B'Ar",
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'Foo Q Bar',
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'Foo Q. Bar',
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'Foo Qux Bar',
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'Foo "Qux" Bar',
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'Foo-Qux Bar',
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'Foo Bar-Qux',
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"Foo b'Arr",
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].forEach(name => {
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it(`returns 'FB' for '${name}'`, () => {
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assert.strictEqual(getInitials(name), 'FB');
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});
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});
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it('returns initials for languages with non-Latin alphabets', () => {
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assert.strictEqual(getInitials('Иван Иванов'), 'ИИ');
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assert.strictEqual(getInitials('山田 太郎'), '山太');
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assert.strictEqual(getInitials('王五'), '王五');
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});
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it('returns initials for right-to-left languages', () => {
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assert.strictEqual(getInitials('فلانة الفلانية'), 'فا');
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assert.strictEqual(getInitials('ישראלה ישראלי'), 'יי');
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});
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it('returns initials with diacritical marks', () => {
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assert.strictEqual(getInitials('Ḟoo Ḅar'), 'ḞḄ');
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});
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});
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