chore(*): update driver tests

Author: nrobakova

projects/igniteui-angular/src/lib/directives/divider/divider.spec.ts

@@ -26,9 +26,11 @@ describe('Divider', () => {
             declarations: [TestDividerComponent],
             imports: [IgxDividerModule]
         }).compileComponents();
+    }));
 
+    beforeEach(() => {
         fixture = TestBed.createComponent(TestDividerComponent);
-    }));
+    });
 
     it('should initialize default divider', () => {
         const divider = fixture.debugElement.query(By.css('igx-divider'));