private final ProjectBuilder projectBuilder = mock(ProjectBuilder.class);
    private final MavenSession session = mock(MavenSession.class);
    private final MavenExecutionRequest mavenExecutionRequest = mock(MavenExecutionRequest.class);

    private final ProjectsSelector projectsSelector = new DefaultProjectsSelector(projectBuilder);

    // Not using mocks for these strategies - a mock would just copy the actual implementation.