Something for folks who have to deal with SAML, particularly when operating as a service provider:

I and my colleagues have just released a gem that provides a micro IdP for use within feature specs, so you can have a full SSO flow tested. As a bonus, you can also use it in your development environment to avoid needing an external service for manual testing. The gem is called ssolo. ☺️
github.com/covidence/ssolo

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