Hello, I need to test SSO login into the Canvas via our SAML IdP.

[MartinKOTAS]

How can I create Test Institution and how to become Admin there?

thx for your help

 martin

[dtod]

At a high level, the Canvas Admin sets up a new Authentication Provider. Each Authentication Provider has a unique URL, e.g. https://your.canvas.url/login/canvas,  https://your.canvas.url/login/ldap,  https://your.canvas.url/login/saml, etc. So you can test it without anyone else using it and without setting it as the default login.

Documentation. 

Many of them have a Debugging option to facilitate the set up process.