first commit

src/app/nav/nav.component.spec.ts

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+import { LayoutModule } from '@angular/cdk/layout';
+import { waitForAsync, ComponentFixture, TestBed } from '@angular/core/testing';
+import { NoopAnimationsModule } from '@angular/platform-browser/animations';
+import { MatButtonModule } from '@angular/material/button';
+import { MatIconModule } from '@angular/material/icon';
+import { MatListModule } from '@angular/material/list';
+import { MatSidenavModule } from '@angular/material/sidenav';
+import { MatToolbarModule } from '@angular/material/toolbar';
+
+import { NavComponent } from './nav.component';
+
+describe('NavComponent', () => {
+  let component: NavComponent;
+  let fixture: ComponentFixture<NavComponent>;
+
+  beforeEach(waitForAsync(() => {
+    TestBed.configureTestingModule({
+      declarations: [NavComponent],
+      imports: [
+        NoopAnimationsModule,
+        LayoutModule,
+        MatButtonModule,
+        MatIconModule,
+        MatListModule,
+        MatSidenavModule,
+        MatToolbarModule,
+      ]
+    }).compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(NavComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should compile', () => {
+    expect(component).toBeTruthy();
+  });
+});