### Question:
AAIPropertiesImpl implements AAIProperties { @Override public String getAuth() { return UrnPropertiesReader.getVariable(AAI_AUTH); }  @Override URL getEndpoint(); @Override String getSystemName(); @Override AAIVersion getDefaultVersion(); @Override String getAuth(); @Override String getKey(); static final String MSO_MSO_KEY; static final String AAI_AUTH; static final String AAI_ENDPOINT; }### Answer:
@Test public void getAuthTest() { String expectedAuth = "aai.auth"; assertEquals(expectedAuth, AAIPropertiesImpl.AAI_AUTH); }