fix(integrations): ensure default depth is used when no options provided

Ensure that depth option is by default set to 3. That wouldn't happen
if the user provided empty object as options.

Fixes #4186

packages/integrations/src/extraerrordata.ts

@@ -18,10 +18,18 @@ export class ExtraErrorData implements Integration {
    */
   public name: string = ExtraErrorData.id;
 
+  /** JSDoc */
+  private readonly _options: ExtraErrorDataOptions;
+
   /**
    * @inheritDoc
    */
-  public constructor(private readonly _options: ExtraErrorDataOptions = { depth: 3 }) {}
+  public constructor(options?: ExtraErrorDataOptions) {
+    this._options = {
+      depth: 3,
+      ...options,
+    };
+  }
 
   /**
    * @inheritDoc

packages/integrations/test/extraerrordata.test.ts

@@ -42,6 +42,31 @@ describe('ExtraErrorData()', () => {
     });
   });
 
+  it('should stringify up to 3 nested levels by default', () => {
+    const error = new TypeError('foo') as ExtendedError;
+    error['1'] = {
+      2: {
+        3: {
+          4: 'foo',
+        },
+      },
+    };
+
+    const enhancedEvent = extraErrorData.enhanceEventWithErrorData(event, {
+      originalException: error,
+    });
+
+    expect(enhancedEvent.contexts).toEqual({
+      TypeError: {
+        1: {
+          2: {
+            3: '[Object]',
+          },
+        },
+      },
+    });
+  });
+
   it('should not remove previous data existing in extra field', () => {
     event = {
       // @ts-ignore Allow contexts on event