ProjectDependencyGraphStub stub = new ProjectDependencyGraphStub();

    @Test
    void testADependencies() {
        final List<MavenProject> mavenProjects = stub.getUpstreamProjects(ProjectDependencyGraphStub.A, false);
        assertEquals(0, mavenProjects.size());
    }

    @Test
    void testBDependencies() {
        final List<MavenProject> bProjects = stub.getUpstreamProjects(ProjectDependencyGraphStub.B, false);

        assertTrue(thing.equals(thing));
    }

    @Test
    void testToStringNullSafe() {
        assertNotNull(new DependencyManagement().toString());
    }

    @Test
    void testDependencies() {
        DependencyManagement dm = new DependencyManagement();
        Dependency d1 = new Dependency();
        d1.setGroupId("myGroupId");
        assertNotNull(dm.getDependencies());