import java.util.function.Consumer;
import org.assertj.core.matcher.AssertionMatcher;
import org.mockito.hamcrest.MockitoHamcrest;

public class CustomMatchers {
  private CustomMatchers() {}

  public static <T> T argSatisfying(Consumer<T> assertions) {
    return MockitoHamcrest.argThat(
        new AssertionMatcher<T>() {
          public void assertion(T actual) throws AssertionError {
            assertions.accept(actual);
          }
        });
  }
}

// verify(aMock).aMethod(argThat(actual -> assertThat(actual).containsExactlyInAnyOrder(aValue, anotherValue)));