chore(angular): hide warnings from angular schematics in jest execution (#12122)

packages/angular/jest.config.ts

@@ -8,4 +8,5 @@ export default {
   displayName: 'angular',
   testEnvironment: 'node',
   preset: '../../jest.preset.js',
+  setupFilesAfterEnv: ['<rootDir>/test-setup.ts'],
 };

packages/angular/test-setup.ts

@@ -0,0 +1,31 @@
+const allowedProjectExtensions = [
+  'tags',
+  'implicitDependencies',
+  'configFilePath',
+  '$schema',
+  'generators',
+];
+
+const possiblePaths = [
+  '@schematics/angular/node_modules/@angular-devkit/core/src/workspace/json/reader',
+  '@angular-devkit/core/src/workspace/json/reader',
+];
+for (const possiblePath of possiblePaths) {
+  try {
+    jest.mock(possiblePath, () => {
+      const originalModule = jest.requireActual(
+        possiblePath
+      ) as typeof import('@angular-devkit/core/src/workspace/json/reader');
+      const originalReadJsonWorkspace = originalModule.readJsonWorkspace;
+      return {
+        ...originalModule,
+        readJsonWorkspace: async (path, host, options) => {
+          return originalReadJsonWorkspace(path, host, {
+            ...options,
+            allowedProjectExtensions,
+          });
+        },
+      };
+    });
+  } catch {}
+}

packages/angular/tsconfig.lib.json

@@ -11,7 +11,8 @@
     "**/*.test.ts",
     "**/*_spec.ts",
     "**/*_test.ts",
-    "jest.config.ts"
+    "jest.config.ts",
+    "test-setup.ts"
   ],
   "include": ["**/*.ts"]
 }