Override the inlined HTML assets. loadHtmlAssets calls this with assets read from disk; tests call it directly with stub assets and skip the disk read.
loadHtmlAssets
the viz.js engine source and browser-bundle source
setHtmlAssets({ vizSource, clientBundle }); Copy
setHtmlAssets({ vizSource, clientBundle });
Override the inlined HTML assets.
loadHtmlAssetscalls this with assets read from disk; tests call it directly with stub assets and skip the disk read.