beep-boop hello,

My code passes all test but this one: "Testing for wrong test 1". It throws the following error: "TypeError: Cannot read properties of null (reading 'reduce')". I read about it and I found that this error occurs when:

1. An operator's or argument's, that passes through a function, type doesn't match the the expected
2. When one tries to modify a value that cannot be altered
3. When one tries to use a vale in an unappropiate manner.

Can anyone point me in a direction to solve this issue? beep-boop

Would be nice for the TypeScript template to have proper type annotations: rather than input: any, input: number[] | null would be more accurate.

There should be more info on the test results, like show the inputs for which we're failing the test. As a beginner it's very hard to find for which input I failed the test.

error: null can not be a value of a non-null type Array
assertArrayEquals(arrayOf(), countPositivesSumNegatives(null))

my sample test its fine, but when i attempt my code thats eror appear
LANGUANGE = KOTLIN

Go: tests don't test empty arrays + don't test edge cases like arrays of zeros, arrays of only negative or positive values. Random tests need to be rewritten. 500 tests are too much, it's better to do ≃ 100 tests ensuring that a variety in the inputs generated.