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Review Summary
Excellent work on this task! You've covered all the requirements and added some very thorough edge case tests. I am requesting one small change in src/arrayReverse.test.js before this can be approved. The test case it('should return an array', ...) has a few issues that make it incorrect:
- The assertion
expect(result).toContain("arba", "daCarbA")is invalid because.toContain()only accepts a single argument. - The expected value
'daCarbA'appears to be a typo; it should be'darbaC'. - The multiple assertions are redundant and can be simplified.
Please update this test to use a single, correct expect(result).toEqual(['arba', 'darbaC']) and give the test a more descriptive name. Once that's fixed, it will be perfect!
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src/arrayReverse.test.js
Outdated
| it(`should return an array`, () => { | ||
| const result = arrayReverse(["Abra", "Cadabra"]); | ||
| expect(result).toEqual(["arba", "daCarbA"]); | ||
| expect(result).toContain("arba", "daCarbA"); | ||
| expect(result[0]).toMatch(/arba/); | ||
| expect(result[1]).toMatch("daCarbA"); | ||
| expect(result).toBeInstanceOf(Array); | ||
| expect(arrayReverse(result)).toEqual(["Abra", "Cadabra"]); | ||
| }); |
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This test case has a few areas for improvement:
- The description
'should return an array'is too generic. A more descriptive name like'should correctly reverse an array of two strings'would be better. - The assertion
expect(result).toContain("arba", "daCarbA")on line 13 is incorrect. The.toContain()matcher only accepts a single argument to check for one element's existence in the array. - The assertions on lines 13-16 are redundant. The first assertion
expect(result).toEqual(['arba', 'daCarbA'])is sufficient as it checks the array's contents, order, and type. It's a good practice to keep tests focused on a single logical assertion.
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Review Summary
Excellent work addressing the feedback from the last review! The test suite is now much clearer. However, there is one small logical error in a test case that needs to be corrected.
In src/arrayReverse.test.js, the test should correctly reverse an array of two strings' has an incorrect expected value. For the input ['Abra', 'Cadabra'], the concatenated string is "AbraCadabra". When reversed, this becomes "arbaDacarbA". Splitting this by the original lengths (4 and 7) should result in ['arba', 'DacarbA']. Please update the assertion to reflect this correct output.
I also noticed a minor typo in that same test description with an extra single quote at the end. Once the assertion is fixed, this will be ready for approval!
✨ Please rate this review in the Platform's notification center1. I will be grateful for your feedback! ✨
Important
Fix the issues, commit the changes, and then re-request my review using the Re-request review button2 in the Reviewers tab.
Tip
If you have any comments about this review, please leave a message in the Add a comment section below and mention me with the @mateacademy-ai-mentor tag3.
I will read your message during my next review of your pull request. Please do not reply directly to my comments, as that feature is not supported yet.
Caution
Do not close the pull request until the review is complete. Closing it early can lead to unexpected behavior and disrupt the review process.
Footnotes
src/arrayReverse.test.js
Outdated
| }); | ||
|
|
||
| it(`should return an array`, () => { | ||
| it(`should correctly reverse an array of two strings'`, () => { |
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There's a small typo here with an extra single quote at the end of the test description string.
src/arrayReverse.test.js
Outdated
| it(`should return an array`, () => { | ||
| it(`should correctly reverse an array of two strings'`, () => { | ||
| const result = arrayReverse(["Abra", "Cadabra"]); | ||
| expect(result).toEqual(["arba", "daCarbA"]); |
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This expected value is still incorrect. When you concatenate and reverse ['Abra', 'Cadabra'], the reversed string is 'arbaCadabrA'. Splitting this by the original lengths (4 and 7) should result in ['arba', 'CadabrA']. Please double-check the logic to ensure your test case is correct.
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Review Summary
Excellent work on this task! I'm happy to approve your solution. You've done a fantastic job addressing the feedback from the previous review, and the test suite is now robust and correct. The test coverage is outstanding, covering all the required examples and thoughtfully including important edge cases like empty arrays and empty strings. Keep up the great work!
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