phase.predecessors.forEach(
                    pred -> assertTrue(plan.step(pred.project, pred.name).isPresent(), "Phase not present: " + pred));
        });
    }

    @Test
    void testAlias() {
        MavenProject p1 = new MavenProject();
        p1.setArtifactId("p1");
        p1.setCollectedProjects(List.of());