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Data Providers

Open jshaw86 opened this issue 13 years ago • 3 comments

This is a concept used in phpunit(i assume junit too since phpunit was inspired by junit). Basically every test within a test case has an optional data provider that gets linked up to it if available. PHPUnit does this through reflection since there isn't any good reflection implementations for javascript that I know of i think using convention is appropriate. Here's my proposal:

exports = testCase({
'provider test1':function(){
   return [
     [foo,bar],//test1
     [baz,gah],//test2
]

},
'test test1':function(test,value,expected){
    if(value == 'foo') test.equal('bar',expected);
    else if(value == 'baz') test.equal('baz',expected);

}

});

The nuance of the above code is the 'test test1' is run twice once passing 'foo' and 'bar' and then again passing 'baz' and 'gah'. You could write multiple test cases to support each row in the data provider but that gets a little verbose and this method is cleaner i think.

This obviously has API implications, and certain conventions would have to be adopted, so I wanted to have a discussion before looking into implementations. Sorry if this has been discussed, or has a current implementation i didn't see any.

jshaw86 avatar Jul 14 '11 19:07 jshaw86

The data provider logic would be a very nice feature for nodeunit.

fodor0205 avatar Feb 08 '13 00:02 fodor0205

+1 I really miss this!

FerCa avatar Apr 17 '13 13:04 FerCa

:+1: it would be awesome!!

morhook avatar Sep 12 '13 16:09 morhook