Object-diff withEqualsOnlyProperty and sets

gistfile1.java

import de.danielbechler.diff.Configuration;
import de.danielbechler.diff.ObjectDifferFactory;
import de.danielbechler.diff.node.Node;
import de.danielbechler.diff.path.PropertyPath;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import org.junit.Test;

import java.util.List;
import java.util.Set;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.javafunk.funk.Literals.listWith;
import static org.javafunk.funk.Literals.setWith;

public class DiffTest {

    @EqualsAndHashCode
    private class Thing {
        @Getter private String a;
        @Getter private String b;

        public Thing(String a, String b) {
            this.a = a;
            this.b = b;
        }
    }

    @EqualsAndHashCode
    private class ThingHolder {
        @Getter private Set<Thing> things;
        @Getter private String ignore;
        @Getter private String include;


        private ThingHolder(Set<Thing> things, String ignore, String include) {
            this.things = things;
            this.ignore = ignore;
            this.include = include;
        }
    }


    @Test
    public void shouldDiffThings() {
        List<String> propertyNames = listWith("things", "include");
        Configuration configuration = new Configuration();
        for (String name : propertyNames) {
            PropertyPath propertyPath = PropertyPath.buildWith(name);
            configuration = configuration.withEqualsOnlyProperty(propertyPath).withPropertyPath(propertyPath);
        }

        Thing thingOne = new Thing("a", "b");
        Thing thingTwo = new Thing("aa", "bb");

        ThingHolder first = new ThingHolder(setWith(thingOne), "ignore", "include");
        ThingHolder second = new ThingHolder(setWith(thingTwo), "ignore this change", "include");
        Node compareResults = ObjectDifferFactory.getInstance(configuration).compare(first, second);

        assertThat(compareResults.isChanged(), is(true));
    }
}