CODEWITHSUNDEEP
javagroovyspock
john
john

Reputation: 1767

Test a method with no params using Spock (groovy) data table

Assuming the method I am trying to test is:

private void deleteImages() {
  //iterate files in path
  //if file == image then delete
}

Now to test this using groovy with spock framework, I am making 2 files, and calling the method:

def "delete images"() {
given:
    //create new folder and get path to "path"
    File imageFile = new File(path, "image.jpg")
    imageFile.createNewFile()
    File textFile= new File(path, "text.txt")
    textFile.createNewFile()
}
when:
   myclass.deleteImages()

then:
   !imageFile.exists()
   textFile.exists()

This is working as expected.

However, I want to add more files to this test (eg: more image file extensions, video file extensions etc) and therefore using a data table would be easier to read.

How can I convert this to a data table? Note that my test method does not take any parameters (the directory path is mocked via another service, which I have not added here for simplicity).

All the data table examples I saw were based on varying the input to a single method, but in my case, the setup is what is different, while the method takes no inputs.

Ideally, after the setup, I would like to see a table like this:

   where:
    imageFileJPG.exists()   | false
    imageFileTIF.exists()   | false
    imageFilePNG.exists()   | false
    videoFileMP4.exists()   | true
    videoFileMOV.exists()   | true
    videoFileMKV.exists()   | true

Upvotes: 0

Views: 381

Answers (1)

injecteer
injecteer

Reputation: 20699

If you want to use a data table, you should put DATA in there instead of method calls.

So, the test could look like this:

@Unroll
def 'some test for #fileName and #result'() {
  expect:
  File f = new File( fileName )
  myclass.deleteImages()
  f.exists() == result

  where:
      fileName        | result
    'imageFile.JPG'   | false
    'imageFile.TIF'   | false
    'videoFile.MKV'   | true
    .....
}

Upvotes: 3

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