}

    @Test
    void testSourceRootOrderingPreserved() {
        // Add multiple resource source roots
        project.addSourceRoot(
                new DefaultSourceRoot(ProjectScope.MAIN, Language.RESOURCES, Path.of("src/main/resources2")));
        project.addSourceRoot(
                new DefaultSourceRoot(ProjectScope.MAIN, Language.RESOURCES, Path.of("src/main/resources3")));

        // Verify initial order

    }

    @Override
    public void addSourceRoot(@Nonnull Project project, @Nonnull SourceRoot source) {
        MavenProject prj = getMavenProject(requireNonNull(project, "project" + " cannot be null"));
        prj.addSourceRoot(requireNonNull(source, "source" + " cannot be null"));
    }

    @Override
    public void addSourceRoot(
            @Nonnull Project project,

     * @param source the source to add
     * @throws IllegalArgumentException if this project manager rejects the given source because of conflict
     *
     * @see #getSourceRoots(Project)
     */
    void addSourceRoot(@Nonnull Project project, @Nonnull SourceRoot source);

    /**
     * Resolves and adds the given directory as a source with the given scope and language.