Describe the bug

i 'm not able write unit test cases for the maxGraph functionalities due to this error and is there any way/solution for this or any configuration i need to update??

Environment

• maxGraph version or commit: 0.18.0
• Desktop or mobile:
• OS and version: [e.g. iOS 14.1]
• Browser and version: [e.g. chrome 118, safari 15]
• Node/npm version (if applicable):
• Used frameworks (if applicable):

Additional context

Add any other context about the problem here.