### Question:
ImageCatalogVersionFilter { public boolean isVersionUnspecified(String cbVersion) { return UNSPECIFIED_VERSION.equals(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 isVersionUnspecified() { assertTrue(underTest.isVersionUnspecified(unspecifiedVersion)); assertFalse(underTest.isVersionUnspecified(unReleasedVersion)); }