{
final PrefixSource groupPrefixSource =
wm.getPrefixSourceFor(getRepositoryRegistry().getRepositoryWithFacet(GROUP1_REPO_ID,
MavenRepository.class));
assertThat("Group1 should have WL", groupPrefixSource.supported());
final List<String> groupEntries = groupPrefixSource.readEntries();
assertThat(groupEntries, hasSize(3));
assertThat(groupEntries, hasItem("/com/sonatype"));
assertThat(groupEntries, hasItem("/org/sonatype"));