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grailstestingspock

How to test class with @Autowired using Spock

I have a class in src/groovy like this

public class MyClass {

@AutoWired
SomeOtherClass someOtherClass

String test() {
    return someOtherClass.testMethod()
}
}

When I write a test for this method I am getting an error: Cannot invoke method testMethod() on null object.

This is my test :- 

def "test test" () {
    expect:
        myClass.test() == "somevalue"
}

What am I doing wrong? Is there a way to mock the @Autowired class?

Solution

  • You need to mock your someOtherClass. Something like this

    def "test test"(){
    setup:
    myClass.someOtherClass = Mock(SomeOtherClass)
    myClass.someOtherClass.testMethod() >> "somevalue"

    expect:
    myClass.test() == "somevalue"
}