Archunit check method calls

Question

I have a class that has three methods that shouldn't be called from certain classes.

How can I check this with Archunit?

So for example

public class Foo {

   public void method1() {
   }

   public void method2() {
   }

   public void method3() {
   }
}

method1 and method2 should only be called by classes Bar1 and Bar2.

Answer 1

I have a very similar requirement and came up with this:

@ArchTest
    public static final ArchRule rule = noClasses()
            .that(not(name(Bar1.class.getName()))
                          .and(not(name(Bar2.class.getName()))))
            .should().callMethodWhere(target(nameMatching("method1"))
                                              .and(target(owner(assignableTo(Foo.class)))))
            .orShould().callMethodWhere(target(nameMatching("method2"))
                                              .and(target(owner(assignableTo(Foo.class)))));

I have not tested it, but should be close I think.

EDIT: imports are:

import com.tngtech.archunit.junit.AnalyzeClasses;
import com.tngtech.archunit.junit.ArchTest;
import com.tngtech.archunit.lang.ArchRule;

import static com.tngtech.archunit.base.DescribedPredicate.not;
import static com.tngtech.archunit.core.domain.JavaCall.Predicates.target;
import static com.tngtech.archunit.core.domain.JavaClass.Predicates.assignableTo;
import static com.tngtech.archunit.core.domain.properties.HasName.Predicates.name;
import static com.tngtech.archunit.core.domain.properties.HasName.Predicates.nameMatching;
import static com.tngtech.archunit.core.domain.properties.HasOwner.Predicates.With.owner;
import static com.tngtech.archunit.lang.syntax.ArchRuleDefinition.noClasses;