Hi @Bunlong
Can we add an optional prop testId for CSVReader component and use it for underlying input tag ?

Doing so will help developers write testcases to test the CSV upload functionality.
We can even give this prop some default value eg: test-csv-reader to keep this prop as optional.

Please share your thoughts on this.

referring to -
<input {...getInputProps()} data-testid={testId} /> // testId read from the passed props or default