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