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import highlight from '~/lib/utils/highlight';
describe('highlight', () => {
it(`should appropriately surround substring matches`, () => {
const expected = 'g<b>i</b><b>t</b>lab';
expect(highlight('gitlab', 'it')).toBe(expected);
});
it(`should return an empty string in the case of invalid inputs`, () => {
[null, undefined].forEach(input => {
expect(highlight(input, 'match')).toBe('');
});
});
it(`should return the original value if match is null, undefined, or ''`, () => {
[null, undefined].forEach(match => {
expect(highlight('gitlab', match)).toBe('gitlab');
});
});
it(`should highlight matches in non-string inputs`, () => {
const expected = '123<b>4</b><b>5</b>6';
expect(highlight(123456, 45)).toBe(expected);
});
it(`should sanitize the input string before highlighting matches`, () => {
const expected = 'hello <b>w</b>orld';
expect(highlight('hello <b>world</b>', 'w')).toBe(expected);
});
it(`should not highlight anything if no matches are found`, () => {
expect(highlight('gitlab', 'hello')).toBe('gitlab');
});
it(`should allow wrapping elements to be customized`, () => {
const expected = '1<hello>2</hello>3';
expect(highlight('123', '2', '<hello>', '</hello>')).toBe(expected);
});
});
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