assertThat("Proxy1 should have ES", proxy1EntrySource.supported()); // we served prefix file
assertThat("Proxy2 should have ES", proxy2EntrySource.supported()); // we served prefix file
assertThat("Group should have ES", groupEntrySource.supported()); // both proxies have it
// GROUP wl must have 4 entries: 1 from hosted (/com/sonatype) + 3 from proxied prefix file
final List<String> groupEntries = groupEntrySource.readEntries();
assertThat(groupEntries.size(), equalTo(4));
assertThat(groupEntries, hasItem("/com/sonatype"));
assertThat(groupEntries, hasItem("/org/sonatype"));
assertThat(groupEntries, hasItem("/org/apache/maven"));
assertThat(groupEntries, hasItem("/eu/flatwhite"));