Introduce mouse service

src/browser/TestUtils.test.ts

@@ -4,7 +4,7 @@
  */
 
 import { IEvent, EventEmitter } from 'common/EventEmitter';
-import { ICharSizeService } from 'browser/services/Services';
+import { ICharSizeService, IMouseService } from 'browser/services/Services';
 
 export class MockCharSizeService implements ICharSizeService {
   get hasValidSize(): boolean { return this.width > 0 && this.height > 0; }
@@ -12,3 +12,13 @@ export class MockCharSizeService implements ICharSizeService {
   constructor(public width: number, public height: number) {}
   measure(): void {}
 }
+
+export class MockMouseService implements IMouseService {
+  public getCoords(event: {clientX: number, clientY: number}, element: HTMLElement, colCount: number, rowCount: number, isSelection?: boolean): [number, number] | undefined {
+    throw new Error('Not implemented');
+  }
+
+  public getRawByteCoords(event: MouseEvent, element: HTMLElement, colCount: number, rowCount: number): { x: number, y: number } | undefined {
+    throw new Error('Not implemented');
+  }
+}