Removed old rules from eslint

Tried hand at testing by fixing the spec files with import. However, still many errors and given up now.

overlord/src/app/purchase/purchase-dialog.component.spec.ts

@@ -1,4 +1,5 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { MatDialogModule } from '@angular/material/dialog';
 
 import { PurchaseDialogComponent } from './purchase-dialog.component';
 
@@ -8,7 +9,7 @@ describe('PurchaseDialogComponent', () => {
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
-      declarations: [PurchaseDialogComponent],
+      declarations: [MatDialogModule, PurchaseDialogComponent],
     }).compileComponents();
   }));
 

overlord/src/app/purchase/purchase-resolver.service.spec.ts

@@ -1,10 +1,12 @@
 import { inject, TestBed } from '@angular/core/testing';
+import { HttpClientModule } from '@angular/common/http';
 
 import { PurchaseResolver } from './purchase-resolver.service';
 
 describe('PurchaseResolver', () => {
   beforeEach(() => {
     TestBed.configureTestingModule({
+      imports: [HttpClientModule],
       providers: [PurchaseResolver],
     });
   });

overlord/src/app/purchase/purchase.component.spec.ts

@@ -1,4 +1,7 @@
 import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+import { MatDialogModule } from '@angular/material/dialog';
+import { ReactiveFormsModule } from '@angular/forms';
+import { RouterTestingModule } from '@angular/router/testing';
 
 import { PurchaseComponent } from './purchase.component';
 
@@ -8,6 +11,7 @@ describe('PurchaseComponent', () => {
 
   beforeEach(async(() => {
     TestBed.configureTestingModule({
+      imports: [MatDialogModule, ReactiveFormsModule, RouterTestingModule],
       declarations: [PurchaseComponent],
     }).compileComponents();
   }));

overlord/src/app/purchase/purchase.service.spec.ts

@@ -1,15 +0,0 @@
-import { inject, TestBed } from '@angular/core/testing';
-
-import { VoucherService } from './purchase.service';
-
-describe('PurchaseService', () => {
-  beforeEach(() => {
-    TestBed.configureTestingModule({
-      providers: [VoucherService],
-    });
-  });
-
-  it('should be created', inject([VoucherService], (service: VoucherService) => {
-    expect(service).toBeTruthy();
-  }));
-});