Testing DashJS with Jest & Enzyme

I'm trying to write Jest tests for a React component which contains a DashJS media player. I'm using Enzyme's mount method to try and test the component, but it seems that the DashJS media player fails to mount properly.

In my componentDidMount method, I have the following code:

    this.videoManager = dashjs.MediaPlayer().create();
    this.videoManager.initialize(this.videoPlayer, videoUrl, true);
    // Where this.videoPlayer is a reference to an HTML <video> element
    this.videoManager.preload();

The last line (this.videoManager.preload();) produces the following error:

You must first call attachSource() with a valid source before calling this method thrown

When I run the component it works normally - it's only the testing I'm having issues with. I haven't been able to find any related issues/solutions online.

I'm using the following versions of each relevant package:

• react: "16.2.0"
• dashjs: "2.6.7"
• jest: "22.3.0"
• enzyme: "3.3.0"
• enzyme-adapter-react-16: "1.1.1"

Any help will be appreciated!