throws MavenExecutionException {
        Set<MavenProject> selectedProjects = new LinkedHashSet<>();
        File baseDirectory = getBaseDirectoryFromRequest(request);
        for (String selector : projectSelectors) {
            Optional<MavenProject> optSelectedProject =
                    findOptionalProjectBySelector(projects, baseDirectory, selector);

        final File baseDirectoryFromRequest = sut.getBaseDirectoryFromRequest(mavenExecutionRequest);

        assertThat(baseDirectoryFromRequest, nullValue());
    }

    @Test
    void getBaseDirectoryFromRequestWhenDirectoryIsValidReturnFile() {
        when(mavenExecutionRequest.getBaseDirectory()).thenReturn("path/to/file");

        final File baseDirectoryFromRequest = sut.getBaseDirectoryFromRequest(mavenExecutionRequest);

        List<MavenProject> result = projects;

        if (request.getResumeFrom() != null && !request.getResumeFrom().isEmpty()) {
            File reactorDirectory = projectSelector.getBaseDirectoryFromRequest(request);

            String selector = request.getResumeFrom();

            MavenProject resumingFromProject = projects.stream()