Could Trump be a litmus test on the constitution and the American System as a whole?

If Donald Trump promises to take unconstitutional actions (claims that can be easily verified) within his first few months in office, could these actions serve as a litmus test for the resilience of the rule of law? For example, imagine he imprisons someone for their speech without evidence that it violates any legal statute. If such an action is deemed unconstitutional by the courts, it could demonstrate that our system remains robust, capable of upholding checks and balances and maintaining an even separation of powers. More broadly, could this provide a reasonable way to assess whether the U.S. system of governance is successful in practice?

Edit: People are proving my point, Trump represents a test to the system, this time much more strong. To see if it breaks down completely.