Jaco
b774b7804b
* Small camelCase conversion adjustments * Remove unused exports * Extract formatRuns
40 lines
984 B
TypeScript
40 lines
984 B
TypeScript
// Copyright 2017-2022 @polkadot/util authors & contributors
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
import { performance } from '../test/performance';
|
|
import { stringUpperFirst } from '.';
|
|
|
|
describe('stringUpperFirst', (): void => {
|
|
it("uppers the first letter if it's a capital letter", (): void => {
|
|
expect(
|
|
stringUpperFirst('ABC')
|
|
).toBe('ABC');
|
|
});
|
|
|
|
it("uppers the first letter if it's a lowercase letter", (): void => {
|
|
expect(
|
|
stringUpperFirst('abc')
|
|
).toBe('Abc');
|
|
});
|
|
|
|
it("uppers the first letter if it's a lowercase letter (String)", (): void => {
|
|
expect(
|
|
stringUpperFirst(String('abc'))
|
|
).toBe('Abc');
|
|
});
|
|
|
|
it('returns undefined as empty', (): void => {
|
|
expect(
|
|
stringUpperFirst()
|
|
).toBe('');
|
|
});
|
|
|
|
it('returns null as empty', (): void => {
|
|
expect(
|
|
stringUpperFirst(null)
|
|
).toBe('');
|
|
});
|
|
|
|
performance('stringUpperFirst', 1_000_000, [['helloWorldSomething']], stringUpperFirst);
|
|
});
|