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Review Summary
This requires a couple of changes before it can be approved. Your test suite is off to a great start and covers many common scenarios well! However, it's missing a critical test for a core behavior of reduce.
When reduce is called on an empty array without an initial value, the specification requires it to throw a TypeError. Please add a test case to src/reduce.test.js to verify this behavior. You can use Jest's toThrow() matcher to assert that the correct error is thrown. This is a crucial part of ensuring full compliance with the reduce method's contract.
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Footnotes
| describe('reduce', () => { | ||
| beforeAll(() => { | ||
| Array.prototype.reduce2 = reduce; // eslint-disable-line | ||
| describe('Custom reduce method', () => { |
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This test suite is missing a critical check for a core behavior of reduce. When called on an empty array without an initial value, the native method throws a TypeError. Please add a test case to verify this behavior. You can use Jest's toThrow() matcher for this.
mateacademy-ai-mentor
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Review Summary
Excellent work on this pull request! You've successfully addressed the feedback by adding the critical test case for handling an empty array without an initial value. Your use of Jest's toThrow() matcher is perfect for verifying that the correct TypeError is thrown. The test suite is now much more robust and covers all the core requirements, so I am approving this submission.
✨ Please rate this review in the Platform's notification center1. I will be grateful for your feedback! ✨
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