* Bugzilla 530162-Filtermatrix/responsibility filter: Show all Person with full name (forename and lastname)
diff --git a/src/app/common/session-context.spec.ts b/src/app/common/session-context.spec.ts
index 5151bfd..073146e 100644
--- a/src/app/common/session-context.spec.ts
+++ b/src/app/common/session-context.spec.ts
@@ -30,7 +30,7 @@
     expect(service.getCurrUser().name).toBe('Rudi');
   }));
 
-  it('create a usermapper should fails when empty', inject([SessionContext], (service: SessionContext) => {
+  it('create a usermapper should fail when empty', inject([SessionContext], (service: SessionContext) => {
     let errorOccured = false;
     try {
       const um = service.getUserMap();
diff --git a/src/app/common/session-context.ts b/src/app/common/session-context.ts
index ddc8a75..8ac6a7b 100644
--- a/src/app/common/session-context.ts
+++ b/src/app/common/session-context.ts
@@ -56,8 +56,7 @@
     }
    
     getCurrUser(): User {
-        const user = localStorage.getItem(Globals.CURRENT_USER);
-        return JSON.parse(user);
+        return this.getSaveFromLocalStorage(Globals.CURRENT_USER);
     }
  
     setCurrUser(usr: any): void {
@@ -65,8 +64,7 @@
     }
 
     getAllUsers(): User[] {
-        const allUsers = localStorage.getItem(Globals.ALL_USERS);
-        return JSON.parse(allUsers);
+        return this.getSaveFromLocalStorage(Globals.ALL_USERS);
     }
 
     setAllUsers(allUsr: User[]) {
@@ -336,4 +334,13 @@
         }
         return this.userMap;
     }
+
+    getSaveFromLocalStorage( key: string): any {
+        const retValue = localStorage.getItem(key);
+        if (!retValue ) {
+            console.log('WARNING: Try to access LocalStorage key [' + key + '] which is empty!');
+            return null;
+         }
+         return JSON.parse(retValue);
+    }
 }
diff --git a/src/app/common/user-map.spec.ts b/src/app/common/user-map.spec.ts
new file mode 100644
index 0000000..278b709
--- /dev/null
+++ b/src/app/common/user-map.spec.ts
@@ -0,0 +1,28 @@
+import { TestBed, async, inject } from '@angular/core/testing';
+import { User } from '../model/user';
+import { USERS } from '../test-data/users';
+import { UserMap } from 'app/common/user-map';
+
+
+describe('UserMap', () => {
+    beforeEach(() => {
+      TestBed.configureTestingModule({
+      });
+  
+    });
+  
+    it('can render a valid user', () => {
+        const userMap = new UserMap( USERS );
+        expect( userMap.findAndRenderUser('otto')).toBe('Otto Normalverbraucher');
+    });
+
+    it('can render a unknown user', () => {
+        const userMap = new UserMap( USERS );
+        expect( userMap.findAndRenderUser('Unknown')).toBe('[Unknown]');
+    });
+
+    it('throws an exception when not initialized', () => {
+        expect( function() { new UserMap( null ); }).toThrowError( EvalError );
+    });
+});
+  
diff --git a/src/app/common/user-map.ts b/src/app/common/user-map.ts
index 051a6b7..f81cb6b 100644
--- a/src/app/common/user-map.ts
+++ b/src/app/common/user-map.ts
@@ -6,6 +6,7 @@
     constructor( allUsers: User[] ) {
         this.mappedUsers = [];
         if ( !allUsers ) {
+            console.log('UserMap was created without any Users!');
             throw new EvalError('UserMap was created without any Users!');
         }
         for ( const usr of allUsers ) {
@@ -14,9 +15,15 @@
     }
 
     public findUser( usrShort: string ): User {
-        if ( this.mappedUsers == null ) {
-            throw new EvalError( 'Usermap has not been initialized before first access');
-        }
         return this.mappedUsers[ usrShort ];
     }
+
+    public findAndRenderUser( shortUsr: string ): string {
+        const usr = this.findUser(shortUsr);
+        if ( !usr ) {
+            return '[' + shortUsr + ']';
+        } else {
+         return usr.name;
+        }
+    }
 }
diff --git a/src/app/filter/filter.component.spec.ts b/src/app/filter/filter.component.spec.ts
index 2aab8f7..eabedfa 100644
--- a/src/app/filter/filter.component.spec.ts
+++ b/src/app/filter/filter.component.spec.ts
@@ -76,6 +76,7 @@
   it('should retrieve all responsibilities onInit/onChange and put the filtermatrix into SessionContext', async(() => {
     spyOn(component, 'initFilterMatrixWithDefaults').and.callThrough();
     const resps = RESPONSIBILITIES;
+    sessionContext.setAllUsers(USERS);
     mockService.content = resps;
     fixture.detectChanges();
 
@@ -109,6 +110,7 @@
   it('should refresh responsibilities (filtermatrix) on checkbox change', async(() => {
     spyOn(component, 'responsibilitiesSelectionChanged').and.callThrough();
     const resps = RESPONSIBILITIES;
+    sessionContext.setAllUsers(USERS);
     mockService.content = resps;
     fixture.detectChanges();
 
@@ -138,6 +140,7 @@
     spyOn(component, 'getUpdatedResponsibilities').and.callThrough();
     const responsibilityContainerMatrixOld = RESPONSIBILITIES;
     const resps = RESPONSIBILITIES;
+    sessionContext.setAllUsers(USERS);    
     const newResponsibleUser = 'otto';
     resps[0].responsibilityList[0].responsibleUser = newResponsibleUser;
     const filterMatrix: FilterMatrix = new FilterMatrix(responsibilityContainerMatrixOld);
@@ -163,6 +166,7 @@
   it('should select all responsibilities after button "Alle setzen" pressed', async(() => {
     spyOn(component, 'selectAllResponsibilities').and.callThrough();
     const resps = RESPONSIBILITIES;
+    sessionContext.setAllUsers(USERS);    
     component.responsibilityContainerMatrix = resps;
     fixture.detectChanges();
 
@@ -187,6 +191,7 @@
   it('should deselect all responsibilities after button "Alle löschen" pressed', async(() => {
     spyOn(component, 'deselectAllResponsibilities').and.callThrough();
     const resps = RESPONSIBILITIES;
+    sessionContext.setAllUsers(USERS);    
     component.responsibilityContainerMatrix = resps;    
     fixture.detectChanges();
 
diff --git a/src/app/filter/filter.component.ts b/src/app/filter/filter.component.ts
index 83b5a7d..1086642 100644
--- a/src/app/filter/filter.component.ts
+++ b/src/app/filter/filter.component.ts
@@ -148,12 +148,8 @@
   }
 
   mapUserName( shortUsr: string ) {
-    const usr = this.sessionContext.getUserMap().findUser(shortUsr);
-    if ( !usr ) {
-      return '[' + shortUsr + ']';
-    } else {
-      return usr.name;
-    }
+    const userMap = this.sessionContext.getUserMap();
+    return userMap ? this.sessionContext.getUserMap().findAndRenderUser(shortUsr) : shortUsr;
   }
 
 }