### Question:
ArchiveSpec { public String getVersionSpec() { return versionSpec; } @JsonCreator  ArchiveSpec(@JsonProperty("version") String versionSpec,
                     @JsonProperty("operatingSystem") OperatingSystemSpec operatingSystemSpec); String getVersionSpec(); OperatingSystemSpec getOperatingSystemSpec(); boolean matches(String version, OperatingSystem operatingSystem);  }### Answer:
@Test public void testGetVersionSpec() { assertThat(archiveSpec.getVersionSpec()).isEqualTo(VERSION_SPEC); }