[FSSDK-10616] logOnlyEventDispatcher improvement

Author: junaed-optimizely

src/Experiment.spec.tsx

@@ -143,7 +143,7 @@ describe('<OptimizelyExperiment>', () => {
       // while it's waiting for onReady()
       expect(container.innerHTML).toBe('');
 
-      //   Simulate client becoming ready; oReady resolving, firing config update notification
+      //   Simulate client becoming ready; onReady resolving, firing config update notification
       resolver.resolve({ success: true });
 
       await waitFor(() => expect(optimizelyMock.activate).toHaveBeenCalledWith('experiment1', undefined, undefined));

src/logOnlyEventDispatcher.spec.ts

@@ -24,10 +24,32 @@ import { getLogger } from '@optimizely/optimizely-sdk';
 const logger = getLogger('ReactSDK');
 
 describe('logOnlyEventDispatcher', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
   it('logs a message', () => {
     const callback = jest.fn();
-    logOnlyEventDispatcher.dispatchEvent({ url: 'https://localhost:8080', httpVerb: 'POST', params: {} }, callback);
+    const mockEvent = { url: 'https://localhost:8080', httpVerb: 'POST' as const, params: {} };
+    logOnlyEventDispatcher.dispatchEvent(mockEvent, callback);
+    const secondArgFunction = (logger.debug as jest.Mock).mock.calls[0][1];
+    const result = secondArgFunction();
+
     expect(callback).toHaveBeenCalled();
     expect(logger.debug).toHaveBeenCalled();
+    expect(result).toBe(JSON.stringify(mockEvent));
+  });
+
+  it('debugger log print error stringifying event', () => {
+    const callback = jest.fn();
+    // circular reference to force JSON.stringify to throw an error
+    const circularReference: any = {};
+    circularReference.self = circularReference;
+    logOnlyEventDispatcher.dispatchEvent(circularReference, callback);
+    const secondArgFunction = (logger.debug as jest.Mock).mock.calls[0][1];
+    const result = secondArgFunction();
+
+    expect(typeof secondArgFunction).toBe('function');
+    expect(result).toBe('error stringifying event');
   });
 });

src/logOnlyEventDispatcher.ts

@@ -1,5 +1,5 @@
 /**
- * Copyright 2019, 2023 Optimizely
+ * Copyright 2019, 2023-2024 Optimizely
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,10 +15,8 @@
  */
 
 import * as optimizely from '@optimizely/optimizely-sdk';
-import { getLogger } from '@optimizely/optimizely-sdk';
-
-const logger = getLogger('ReactSDK');
 
+const logger = optimizely.getLogger('ReactSDK');
 /**
  * logOnlyEventDispatcher only logs a message at the debug level, and does not
  * send any requests to the Optimizely results backend. Use this to disable