}

    @Test
    void testResolveParentThrowsUnresolvableModelExceptionWhenNotFound() throws Exception {
        final Parent parent = new Parent();
        parent.setGroupId("org.apache");
        parent.setArtifactId("apache");
        parent.setVersion("0");

        UnresolvableModelException e = assertThrows(
                UnresolvableModelException.class,
                () -> newModelResolver().resolveModel(parent),

    }

    @Test
    public void testResolveParentThrowsUnresolvableModelExceptionWhenNotFound() throws Exception {
        final Parent parent = new Parent();
        parent.setGroupId("ut.simple");
        parent.setArtifactId("artifact");
        parent.setVersion("0");

        UnresolvableModelException e = assertThrows(
                UnresolvableModelException.class,
                () -> newModelResolver().resolveModel(parent),

        mojoDescriptor.setGoal("goal");
        PluginDescriptor pluginDescriptor = new PluginDescriptor();
        pluginDescriptor.setGoalPrefix("goalPrefix");
        pluginDescriptor.setArtifactId("artifactId");
        mojoDescriptor.setPluginDescriptor(pluginDescriptor);

        Parameter parameter = new Parameter();
        parameter.setType("java.lang.String[]");
        parameter.setName("toAddresses");

            model.setArtifactId(artifactId);
            model.setVersion(version);
            model.setBuild(new Build());
            project = new MavenProject(model);
        }

        public ProjectBuilder setGroupId(String groupId) {
            project.setGroupId(groupId);
            return this;
        }

        public ProjectBuilder setArtifactId(String artifactId) {

                null,
                new DefaultArtifactHandler("ignore"));
        PluginDescriptor descriptor = new PluginDescriptor();
        descriptor.setGroupId("org.apache.maven.its.plugins");
        descriptor.setArtifactId("maven-it-plugin");
        descriptor.setVersion("0.1");
        List<String> errors = new ArrayList<>();
        mavenPluginValidator.validate(plugin, descriptor, errors);
        assertTrue(

        Exclusion exclusion2 = new Exclusion();
        exclusion2.setGroupId("org.apache.maven");
        exclusion2.setArtifactId("maven-core");

        ExclusionArtifactFilter filter = new ExclusionArtifactFilter(Arrays.asList(exclusion1, exclusion2));

        assertFalse(filter.include(artifact), "Artifact should be excluded by multiple exclusions");
    }

    @Test

    @Test
    void testAllPhase() {
        MavenProject c1 = new MavenProject();
        c1.setArtifactId("c1");
        c1.setCollectedProjects(List.of());
        MavenProject c2 = new MavenProject();
        c2.setArtifactId("c2");
        c2.setCollectedProjects(List.of());
        MavenProject p = new MavenProject();
        p.setArtifactId("p");
        p.setCollectedProjects(List.of(c1, c2));

        @Override
        public void afterProjectsRead(MavenSession session) {
            MavenProject project = session.getProjects().get(0);

            Dependency dependency = new Dependency();
            dependency.setArtifactId(INJECTED_ARTIFACT_ID);
            dependency.setGroupId("foo");
            dependency.setVersion("1.2.3");
            dependency.setScope("system");
            try {
                dependency.setSystemPath(new File(

    public static final MavenProject UNKNOWN = new MavenProject();

    static {
        A.setArtifactId("A");
        B.setArtifactId("B");
        C.setArtifactId("C");
        X.setArtifactId("X");
        Y.setArtifactId("Y");
        Z.setArtifactId("Z");
    }

    // This should probably be moved to a separate stub

    /**
     * Set the artifact ID of the extension.
     *
     * @param artifactId a artifactId object.
     */
    public void setArtifactId(String artifactId) {
        this.artifactId = artifactId;
    } // -- void setArtifactId( String )

    /**
     * Set the class loading strategy: 'self-first' (the default),
     * 'parent-first' (loads classes from the parent, then from the