update test suite to using SOAP messages

[monkeyiq]

I am not sure this is a complete update. The AttributeQuery came from the base64 decoded, deflated example contained in the original QUERY_STRING.

It might be an idea at some stage to include an AuthnRequest message. Though that sort of thing might be better focused into the main SSP test suite. Adding some more SOAP round trips there and verifying the samlp:Response.

Closes #17

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.91%. Comparing base (991e3c9) to head (1881c5f).
⚠️ Report is 8 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master      #20      +/-   ##
============================================
- Coverage     76.38%   75.91%   -0.48%     
+ Complexity       21       20       -1     
============================================
  Files             1        1              
  Lines           144      137       -7     
============================================
- Hits            110      104       -6     
+ Misses           34       33       -1     

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[tvdijen]

I think it's perfect @monkeyiq !

[monkeyiq]

It seems that maybe the phpstan issues that are left were already there? Both would be dealing with an AbstractMessage?

    public function receive(ServerRequestInterface $request): AbstractMessage

[monkeyiq]

The type of $message is AttributeQuery from the call:

   $message = $soap->receive($request);