Move unit tests onto esbuild sources

src/browser/Terminal.test.ts

@@ -10,6 +10,7 @@ import { CellData } from 'common/buffer/CellData';
 import { MockUnicodeService } from 'common/TestUtils.test';
 import { IMarker, ScrollSource } from 'common/Types';
 import { ICoreService } from 'common/services/Services';
+import type { IBrowser } from 'browser/Types';
 
 const INIT_COLS = 80;
 const INIT_ROWS = 24;
@@ -571,12 +572,9 @@ describe('Terminal', () => {
     });
 
     describe('with macOptionIsMeta', () => {
-      let originalIsMac: boolean;
       beforeEach(() => {
-        originalIsMac = term.browser.isMac;
         term.options.macOptionIsMeta = true;
       });
-      afterEach(() => term.browser.isMac = originalIsMac);
 
       it('should interfere with the alt key on keyDown', () => {
         evKeyDown.altKey = true;
@@ -589,12 +587,12 @@ describe('Terminal', () => {
     });
 
     describe('On Mac OS', () => {
-      let originalIsMac: boolean;
+      let originalBrowser: IBrowser;
       beforeEach(() => {
-        originalIsMac = term.browser.isMac;
-        term.browser.isMac = true;
+        originalBrowser = term.browser;
+        term.browser = { ...originalBrowser, isMac: true };
       });
-      afterEach(() => term.browser.isMac = originalIsMac);
+      afterEach(() => term.browser = originalBrowser);
 
       it('should not interfere with the alt key on keyDown', () => {
         evKeyDown.altKey = true;
@@ -656,12 +654,12 @@ describe('Terminal', () => {
     });
 
     describe('On MS Windows', () => {
-      let originalIsWindows: boolean;
+      let originalBrowser: IBrowser;
       beforeEach(() => {
-        originalIsWindows = term.browser.isWindows;
-        term.browser.isWindows = true;
+        originalBrowser = term.browser;
+        term.browser = { ...originalBrowser, isWindows: true };
       });
-      afterEach(() => term.browser.isWindows = originalIsWindows);
+      afterEach(() => term.browser = originalBrowser);
 
       it('should not interfere with the alt + ctrl key on keyDown', () => {
         evKeyPress.altKey = true;