Add only instantiation tests

Author: AlexP11223

composer.json

@@ -26,7 +26,7 @@
   },
   "autoload-dev": {
     "psr-4": {
-      "WpOop\\WordPress\\Test\\": "tests"
+      "WpOop\\WordPress\\Test\\Unit\\": "tests/unit"
     }
   },
   "extra": {

composer.lock

@@ -9,7 +9,7 @@
     </php>
     <testsuites>
         <testsuite name="unit">
-            <directory>tests/Unit</directory>
+            <directory>tests/unit</directory>
         </testsuite>
     </testsuites>
     <filter>