test(overlay): move unit test config in beforeEach statement

Author: ViktorSlavov

projects/igniteui-angular/src/lib/services/overlay/overlay.spec.ts

@@ -190,50 +190,62 @@ describe('igxOverlay', () => {
 
     describe('Pure Unit Test', () => {
         configureTestSuite();
-        const mockElement: any = {
-            style: { visibility: '', cursor: '', transitionDuration: '' },
-            classList: { add: () => { }, remove: () => { } },
-            appendChild: () => { },
-            removeChild: () => { },
-            addEventListener: (type: string, listener: (this: HTMLElement, ev: MouseEvent) => any) => { },
-            removeEventListener: (type: string, listener: (this: HTMLElement, ev: MouseEvent) => any) => { },
-            getBoundingClientRect: () => ({ width: 10, height: 10 }),
-            insertBefore: (newChild: HTMLDivElement, refChild: Node) => { },
-            contains: () => { }
-        };
-        mockElement.parent = mockElement;
-        mockElement.parentElement = mockElement;
-        const mockElementRef: any = { nativeElement: mockElement };
-        const mockFactoryResolver: any = {
-            resolveComponentFactory: (c: any) => {
-                return {
-                    create: (i: any) => {
-                        return {
-                            hostView: '',
-                            location: mockElementRef,
-                            changeDetectorRef: { detectChanges: () => { } },
-                            destroy: () => { }
-                        };
-                    }
-                };
-            }
-        };
-        const mockApplicationRef: any = { attachView: (h: any) => { }, detachView: (h: any) => { } };
-        const mockInjector: any = {};
-        const mockAnimationBuilder: any = {};
-        const mockDocument = {
-            body: mockElement,
-            defaultView: mockElement,
-            createElement: () => mockElement,
-            appendChild: () => { },
-            addEventListener: (type: string, listener: (this: HTMLElement, ev: MouseEvent) => any) => { },
-            removeEventListener: (type: string, listener: (this: HTMLElement, ev: MouseEvent) => any) => { }
-        };
-        const mockNgZone: any = {};
-        const mockPlatformUtil: any = { isIOS: false };
-
-        const overlay = new IgxOverlayService(
-            mockFactoryResolver, mockApplicationRef, mockInjector, mockAnimationBuilder, mockDocument, mockNgZone, mockPlatformUtil);
+        let mockElement: any;
+        let mockElementRef: any;
+        let mockFactoryResolver: any;
+        let mockApplicationRef: any;
+        let mockInjector: any;
+        let mockAnimationBuilder: any;
+        let mockDocument: any;
+        let mockNgZone: any;
+        let mockPlatformUtil: any;
+        let overlay: IgxOverlayService;
+        beforeEach(() => {
+            mockElement = {
+                style: { visibility: '', cursor: '', transitionDuration: '' },
+                classList: { add: () => { }, remove: () => { } },
+                appendChild: () => { },
+                removeChild: () => { },
+                addEventListener: (type: string, listener: (this: HTMLElement, ev: MouseEvent) => any) => { },
+                removeEventListener: (type: string, listener: (this: HTMLElement, ev: MouseEvent) => any) => { },
+                getBoundingClientRect: () => ({ width: 10, height: 10 }),
+                insertBefore: (newChild: HTMLDivElement, refChild: Node) => { },
+                contains: () => { }
+            };
+            mockElement.parent = mockElement;
+            mockElement.parentElement = mockElement;
+            mockElementRef = { nativeElement: mockElement };
+            mockFactoryResolver = {
+                resolveComponentFactory: (c: any) => {
+                    return {
+                        create: (i: any) => {
+                            return {
+                                hostView: '',
+                                location: mockElementRef,
+                                changeDetectorRef: { detectChanges: () => { } },
+                                destroy: () => { }
+                            };
+                        }
+                    };
+                }
+            };
+            mockApplicationRef = { attachView: (h: any) => { }, detachView: (h: any) => { } };
+            mockInjector = {};
+            mockAnimationBuilder = {};
+            mockDocument = {
+                body: mockElement,
+                defaultView: mockElement,
+                createElement: () => mockElement,
+                appendChild: () => { },
+                addEventListener: (type: string, listener: (this: HTMLElement, ev: MouseEvent) => any) => { },
+                removeEventListener: (type: string, listener: (this: HTMLElement, ev: MouseEvent) => any) => { }
+            };
+            mockNgZone = {};
+            mockPlatformUtil = { isIOS: false };
+
+            overlay = new IgxOverlayService(
+                mockFactoryResolver, mockApplicationRef, mockInjector, mockAnimationBuilder, mockDocument, mockNgZone, mockPlatformUtil);
+        });
 
         it('Should set cursor to pointer on iOS', () => {
             mockPlatformUtil.isIOS = true;