@angular/core migration - migration-v13-testbed-teardown

In Angular version 13, the `teardown` flag in `TestBed` will be enabled by default. This migration automatically opts out existing apps from the new teardown behavior.

Author: robertIsaac

src/test.ts

@@ -17,7 +17,9 @@ declare const require: {
 // First, initialize the Angular testing environment.
 getTestBed().initTestEnvironment(
   BrowserDynamicTestingModule,
-  platformBrowserDynamicTesting()
+  platformBrowserDynamicTesting(), {
+    teardown: { destroyAfterEach: false }
+}
 );
 // Then we find all the tests.
 const context = require.context('./', true, /\.spec\.ts$/);