File file = new File(tempDir.resolve("file.txt").toString());
        if (!file.createNewFile()) {
            throw new IOException("Can't create " + file);
        }
    }

    @Test
    void testRootDirectoryWithNull() {
        context.setProjectDirectory(null);

        IllegalStateException e = assertThrows(
                IllegalStateException.class,

        assertEquals(
                rootDirectory.resolve("temp-repo").toUri().toString(),
                (out.getRepositories().get(0)).getUrl());
    }

    @Test
    void testRootDirectoryWithNull() throws Exception {
        Model model = Model.newBuilder()
                .version("3.8.1")
                .artifactId("foo")
                .repositories(Collections.singletonList(Repository.newBuilder()