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How to Test custom validation with JUnit [message #1806991]

Mon, 20 May 2019 18:13

Markus Häge

Messages: 56
Registered: August 2018

Member

Hi,

I try to test my validation with JUnit.

class MyDslValidator extends AbstractMyDslValidator {
@Check
def checkPosition(CANSignal can){
if(can.pos < 0 || can.pos > 100){
warning("Position out of Range", MyDslPackage.Literals.CAN_SIGNAL__NAME)
}
}

}
This works so far in the Editor. When I edit a greater Value i get the message, Now I want to make a JUnit test for it and fail. I read some but don't find the correct solution. Eclipse says

org.junit.ComparisonFailure: expected:<E[rror : Position]> but was:<E[xpected WARNING 'Position out of Range' on CANSignal at [-1:-1] but got
WARNING (null) 'Position out of Range' on CANSignal, offset 62, length 8

My TestCode (not complete)

@Test
def void validationTest(){

'''
Position 500
'''.parse.assertPosition("Position")
}

def void assertPosition(Domainmodel domainmodel, String string){
domainmodel.assertWarning(MyDslPackage.eINSTANCE.CANSignal, "Position out of Range" ,"Error : " + string )
}

I read in the book of Bettini but don't get it.
How to test it properly? Valid Positions, greater and smaller than the range?

Thanks
Markus

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Re: How to Test custom validation with JUnit [message #1806992 is a reply to message #1806991]

Mon, 20 May 2019 18:19

Christian Dietrich

Messages: 14668
Registered: July 2009

Senior Member

Am not sure what your actual question is.
Have a look at the signatures of the assert methods and use them

public void assertWarning(org.eclipse.emf.ecore.EObject model,
org.eclipse.emf.ecore.EClass objectType,
java.lang.String code,
java.lang.String... messageParts)

You create the error message without code.

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: How to Test custom validation with JUnit [message #1807012 is a reply to message #1806992]

Tue, 21 May 2019 09:31

Markus Häge

Messages: 56
Registered: August 2018

Member

Hi, thanks to your replies. Sometimes I'm confused with this stuff.
I got it, it works now. But another Problem occured.

I try to test the generator. The generator creates two files:

class MyDslGenerator extends AbstractGenerator {
override void doGenerate(Resource resource, IFileSystemAccess2 fsa, IGeneratorContext context) {
for(e : resource.allContents.toIterable.filter(Domainmodel)){
fsa.generateFile('File1' ,e.compile)}

for(en : resource.allContents.toIterable.filter(Domainmodel)){
fsa.generateFile('File2' ,en.compileTS)}
}

When I test it with String..assertCompilesTo(String) it throws me error: multiple files are generated.
How can i test one of this files?
Thanks,
Markus

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