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Add tests for arrayReverse function #203

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Add tests for arrayReverse function #203

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2fe467f
Add tests for arrayReverse function
oberezhnay Sep 21, 2026
172c96b
Fix expected result of should return reversed strings test
oberezhnay Sep 21, 2026
ae8a696
fix test expected result
oberezhnay Sep 21, 2026
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27 changes: 24 additions & 3 deletions src/arrayReverse.test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -7,12 +7,33 @@ describe(`Function 'arrayReverse':`, () => {
expect(arrayReverse).toBeInstanceOf(Function);
});

it(`should return an array`, () => {});
it(`should return an array`, () => {
const result = arrayReverse(['hello', 'world']);

expect(result).toBeInstanceOf(Array);
});

it(`should return an empty string
if original array consists of an empty string`, () => {
expect(arrayReverse(['Mate', 'Academy'])).toEqual(['ymed', 'acAetaM']);
expect(arrayReverse([''])).toEqual(['']);
});

it(`should return a reversed string`, () => {
expect(arrayReverse(['Hell0'])).toEqual(['0lleH']);
});

// write more tests here
it(`should return reversed strings`, () => {
const result = arrayReverse(['Mate', 'Academy']);

expect(result).toEqual(['ymed', 'acAetaM']);
});

it(`should return reversed strings right length`, () => {
expect(arrayReverse(['I', 'am', 'a', 'student!'])).toEqual([
'!',
'tn',
'e',
'dutsamaI',
]);
});
});
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