Are there any official testing tools from Microsoft for Razor view and Razor pages?

I'm doing some research about Razor view, Razor pages and Blazor. Now I do understated the idea but when I came to the testing part I didn't get a great idea about it. For Blazor it's clear for me that there is no official testing tool from Microsoft for it, so people use bUnit or B2B tools, when I came to Razor pages I did see some article about it (here) but not very clear about the page itself. And when come to Razor view I didn't get anything about it, so are there any official testing tools for both of them (Just the view and page)?

Regards.