Merge pull request #26 from superrosko/qa/psalm

Qa/psalm

Author: weierophinney

composer.json

@@ -44,7 +44,9 @@
         "laminas/laminas-test": "^3.5",
         "mockery/mockery": "^1.3.2",
         "phpspec/prophecy-phpunit": "^2.0",
-        "phpunit/phpunit": "^9.3"
+        "phpunit/phpunit": "^9.3",
+        "psalm/plugin-phpunit": "^0.15",
+        "vimeo/psalm": "^4.7"
     },
     "suggest": {
         "alcaeus/mongo-php-adapter": "^1.0.5, if you are using ext/mongodb and wish to use the MongoAdapter for OAuth2 credential storage."
@@ -69,6 +71,7 @@
         ],
         "cs-check": "phpcs",
         "cs-fix": "phpcbf",
+        "static-analysis": "psalm --shepherd --stats",
         "test": "phpunit --colors=always",
         "test-coverage": "phpunit --colors=always --coverage-clover clover.xml"
     },