diff --git a/projects/grid-failure-information-app/src/app/pages/grid-failure/grid-failure-list/grid-failure-list.component.spec.ts b/projects/grid-failure-information-app/src/app/pages/grid-failure/grid-failure-list/grid-failure-list.component.spec.ts
index a87b89d..5da79e0 100644
--- a/projects/grid-failure-information-app/src/app/pages/grid-failure/grid-failure-list/grid-failure-list.component.spec.ts
+++ b/projects/grid-failure-information-app/src/app/pages/grid-failure/grid-failure-list/grid-failure-list.component.spec.ts
@@ -91,12 +91,18 @@
     expect(component.condensationColumnDefinition).not.toBeDefined();
   });
 
-  it('should pass external filter if the appropriate conditions are met', () => {
+  it('should pass external filter if the appropriate conditions are met (published)', () => {
     let node: any = { data: { publicationStatus: StateEnum.PUBLISHED } };
     component.sandbox.publisherFilterIsActive = true;
     expect(component.doesExternalFilterPass(node)).toBeTruthy();
   });
 
+  it('should pass external filter if the appropriate conditions are met (qualified)', () => {
+    let node: any = { data: { statusIntern: StateEnum.QUALIFIED } };
+    component.sandbox.publisherFilterIsActive = true;
+    expect(component.doesExternalFilterPass(node)).toBeTruthy();
+  });
+
   it('should should not pass external filter if the appropriate conditions are not met', () => {
     let node: any;
     expect(component.doesExternalFilterPass(node)).toBeFalsy();
diff --git a/projects/grid-failure-information-map-app/src/app/app-config.service.spec.ts b/projects/grid-failure-information-map-app/src/app/app-config.service.spec.ts
index defb76b..6434262 100644
--- a/projects/grid-failure-information-map-app/src/app/app-config.service.spec.ts
+++ b/projects/grid-failure-information-map-app/src/app/app-config.service.spec.ts
@@ -24,4 +24,10 @@
   it('should be created', () => {
     expect(service).toBeTruthy();
   });
+
+  it('should call http het via getConfig()', () => {
+    const spy: any = spyOn(service['http'], 'get');
+    service.getConfig();
+    expect(spy).toHaveBeenCalledWith('public-settings');
+  });
 });
diff --git a/projects/grid-failure-information-table-app/src/app/app-config.service.spec.ts b/projects/grid-failure-information-table-app/src/app/app-config.service.spec.ts
index defb76b..f7f1837 100644
--- a/projects/grid-failure-information-table-app/src/app/app-config.service.spec.ts
+++ b/projects/grid-failure-information-table-app/src/app/app-config.service.spec.ts
@@ -10,7 +10,7 @@
  *
  * SPDX-License-Identifier: EPL-2.0
  ********************************************************************************/
-import { AppConfigService } from '@grid-failure-information-map-app/app/app-config.service';
+import { AppConfigService } from '@grid-failure-information-table-app/app/app-config.service';
 
 describe('AppConfigService', () => {
   let service: AppConfigService;
@@ -24,4 +24,10 @@
   it('should be created', () => {
     expect(service).toBeTruthy();
   });
+
+  it('should call http het via getConfig()', () => {
+    const spy: any = spyOn(service['http'], 'get');
+    service.getConfig();
+    expect(spy).toHaveBeenCalledWith('public-settings');
+  });
 });
diff --git a/projects/grid-failure-information-table-app/src/app/app.component.spec.ts b/projects/grid-failure-information-table-app/src/app/app.component.spec.ts
index c0c0e99..0e760be 100644
--- a/projects/grid-failure-information-table-app/src/app/app.component.spec.ts
+++ b/projects/grid-failure-information-table-app/src/app/app.component.spec.ts
@@ -12,20 +12,25 @@
  ********************************************************************************/
 import { TableComponent } from '@grid-failure-information-table-app/app/app.component';
 import { AppTableService } from '@grid-failure-information-table-app/app/app-table.service';
-import { GridFailure } from '@grid-failure-information-app/shared/models';
+import { AppConfigService } from '@grid-failure-information-table-app/app/app-config.service';
+import { GridFailure, Settings } from '@grid-failure-information-app/shared/models';
 import { of } from 'rxjs';
 
 describe('AppComponent', () => {
   let component: TableComponent;
   let service: AppTableService;
+  let configService: AppConfigService;
   let gridFailureMapListAll: GridFailure[] = [];
 
   beforeEach(() => {
     service = {
-      loadGridFailureData: () => of(true)
+      loadGridFailureData: () => of(true),
+    } as any;
+    configService = {
+      getConfig: () => of(true),
     } as any;
     gridFailureMapListAll = [new GridFailure({ postcode: '007' }), new GridFailure({ postcode: '4711' }), new GridFailure({ postcode: '0815' })];
-    component = new TableComponent(service);
+    component = new TableComponent(service, configService);
     (component as any)._gridFailuresAll = gridFailureMapListAll;
     component.gridFailures = gridFailureMapListAll.map(i => Object.assign(i));
   });
@@ -59,4 +64,15 @@
     expect(component.gridFailures.length).toEqual(1);
     expect(component.gridFailures[0].postcode).toEqual('007');
   });
+
+  it('should xxx', () => {
+    let config = new Settings();
+    config.visibilityConfiguration = { tableExternColumnVisibility: { failureClassification: 'show' } } as any;
+    configService = {
+      getConfig: () => of(config),
+    } as any;
+    component = new TableComponent(service, configService);
+    component.ngOnInit();
+    expect(component.columnDefs).toBeDefined();
+  });
 });
diff --git a/projects/grid-failure-information-table-app/src/app/utilityHelpers.spec.ts b/projects/grid-failure-information-table-app/src/app/utilityHelpers.spec.ts
index b28aa07..6922310 100644
--- a/projects/grid-failure-information-table-app/src/app/utilityHelpers.spec.ts
+++ b/projects/grid-failure-information-table-app/src/app/utilityHelpers.spec.ts
@@ -42,4 +42,14 @@
     let testValue = utilityHelpers.dateTimeComparator(filterLocalDateAtMidnight, null);
     expect(testValue).toBe(-1);
   });
+
+  it('should compare two strings via stringInsensitiveComparator', () => {
+    let testValue = utilityHelpers.stringInsensitiveComparator('A', 'b');
+    expect(testValue).toBe(-1);
+  });
+
+  it('should handle null values in stringInsensitiveComparator ', () => {
+    let testValue = utilityHelpers.stringInsensitiveComparator(null, null);
+    expect(testValue).toBe(0);
+  });
 });