@Test
public void testExplicitlyConfiguredAutoStart() throws Exception {

    instDesc.addBundleStartLevel(new BundleStartLevel("org.example.bundle1", 0, true)); // level attribute omitted
    List<String> config = splitAtComma(
            subject.toOsgiBundles(bundles, instDesc.getBundleStartLevel(), defaultLevel));
    assertThat(config, hasItem("reference:file:absolute/path/to/bundle1@start")); // implicitly use default start level
}