### Question:
ImageCatalogVersionFilter { public String extractExtendedUnreleasedVersion(String cbVersion) { return extractCbVersion(EXTENDED_UNRELEASED_VERSION_PATTERN, cbVersion); }  Set<CloudbreakVersion> filterReleasedVersions(Collection<CloudbreakVersion> cloudbreakVersions, String releasedVersion); Set<CloudbreakVersion> filterUnreleasedVersions(Collection<CloudbreakVersion> cloudbreakVersions, String unReleasedVersion); String latestCloudbreakVersion(Iterable<CloudbreakVersion> cloudbreakVersions); boolean isVersionUnspecified(String cbVersion); String extractUnreleasedVersion(String cbVersion); String extractReleasedVersion(String cbVersion); String extractExtendedUnreleasedVersion(String cbVersion);  }### Answer:
@Test public void extractExtendedUnreleasedVersion() { String extractedVersion = underTest.extractExtendedUnreleasedVersion(extendedUnreleasedVersion); assertEquals(extendedUnreleasedVersion, extractedVersion); }