How to compare downloaded file in karate?

Question

I would like to compare the text file, however the API is returning application/octet-stream which I cannot change currently. That's why karate probably tries to compare the binary and test. That means this:

    Given path '/download/testing/'+fileId
    When method get
    Then status 200
    And match response == read('../files/test.txt')

leads to:

match failed: EQUALS
$ | data types don't match (LIST:STRING)
  [116,101,115,116,105,110,103]
  'testing'

The file test.txt contains just testing. I cannot find the way how to convert string to byte array. I could use probably java function, but at first I would like to find out if there is some built-in function.

score 0 · Accepted Answer · answered Oct 23 '21 at 13:14

You can do type conversions: https://github.com/karatelabs/karate#type-conversion

So this will convert a binary response into text:

* string response = response

That should get you going. The reverse is also possible.

For completeness, note that the responseBytes variable will always contain a copy of the response, but as a byte-array.

How to compare downloaded file in karate?

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