@Test
  public void testIncrementalUpdate() {
    assertInitialState();

    // update active state
    registry.set(CollectionSettingNames.CS_QUERY_EXRTERNAL_RESOURCE_NAME, Boolean.TRUE);

    boolean active = generator.isGeneratingExternalResources();
    assertTrue("Active state should be true after update", active);

    // add application to ignore list
    ApplicationName appName = ApplicationName.valueOf("test-app");
    registry.set(
        CollectionSettingNames.createApplicationCollectionSettingName(appName), Boolean.FALSE);

    Collection<ApplicationName> apps = generator.getDisabledApplicationNames();
    assertEquals("Total disabled apps", 1, apps.size());
    assertTrue(appName + "is known when disabled", generator.isApplicationNameKnown(appName));

    ApplicationName disabledAppName = ListUtil.getFirstMember(apps);
    assertEquals("The only disabled app", appName, disabledAppName);

    // removed application from ignore list
    registry.set(
        CollectionSettingNames.createApplicationCollectionSettingName(appName), Boolean.TRUE);

    apps = generator.getDisabledApplicationNames();
    assertTrue("Total disabled apps is empty", apps.isEmpty());
    assertTrue(appName + "is known when enabled", generator.isApplicationNameKnown(appName));
  }
  @Test
  public void testLocateExternalResourceNameWhenEnabledWithSqlAndDisabledApp() {
    assertInitialState();

    // enable query external resources creation
    registry.set(CollectionSettingNames.CS_QUERY_EXRTERNAL_RESOURCE_NAME, Boolean.TRUE);

    Operation op = createJdbcOperation("jdbc:foobar://huh:8080");
    op.type(JdbcOperationExternalResourceAnalyzer.TYPE);

    Frame frame = createJdbcFrame(op);
    Trace trace = createJdbcTrace(frame);

    registry.set(
        CollectionSettingNames.createApplicationCollectionSettingName(trace.getAppName()),
        Boolean.FALSE);

    Collection<ExternalResourceDescriptor> resources = locateExternalResourceName(trace);

    // make sure that no query external resources were created
    assertNotNull("external resource descriptors list", resources);
    assertEquals("total external resource descriptors", 1, resources.size());

    ExternalResourceDescriptor firstDescriptor = ListUtil.getFirstMember(resources);
    ExternalResourceType type = ExternalResourceType.valueOf(firstDescriptor.getType());
    assertSame("first descriptor type", ExternalResourceType.DATABASE, type);
    assertFalse("first descriptor is a parent", firstDescriptor.isParent());

    assertTrue(
        trace.getAppName() + "is known", generator.isApplicationNameKnown(trace.getAppName()));
  }
  @Test
  public void testLocateExternalResourceNameWhenDisabled() {
    assertInitialState();

    Operation op = createJdbcOperation("jdbc:foobar://huh:8080");
    op.type(JdbcOperationExternalResourceAnalyzer.TYPE);

    Frame frame = createJdbcFrame(op);
    Trace trace = createJdbcTrace(frame);

    Collection<ExternalResourceDescriptor> resources = locateExternalResourceName(trace);

    // make sure that no query external resources were created
    assertNotNull("external resource descriptors list", resources);
    assertEquals("total external resource descriptors", 1, resources.size());

    ExternalResourceDescriptor firstDescriptor = ListUtil.getFirstMember(resources);
    ExternalResourceType type = ExternalResourceType.valueOf(firstDescriptor.getType());
    assertSame("first descriptor type", ExternalResourceType.DATABASE, type);
    assertFalse("first descriptor is a parent", firstDescriptor.isParent());

    assertTrue(
        trace.getAppName() + " is known", generator.isApplicationNameKnown(trace.getAppName()));
  }