Modfied ShibbolethTest to use the entity interface

module/VuFind/tests/integration-tests/src/VuFindTest/Auth/ShibbolethTest.php

@@ -311,8 +311,8 @@ public function testSessionInitiator(): void
     public function testLogin(): void
     {
         $user = $this->getAuthObject()->authenticate($this->getLoginRequest());
-        $this->assertEquals('testuser', $user->username);
-        $this->assertEquals('[email protected]', $user->email);
+        $this->assertEquals('testuser', $user->getUsername());
+        $this->assertEquals('[email protected]', $user->getEmail());
     }
 
     /**
@@ -324,8 +324,8 @@ public function testLogin1(): void
     {
         $user = $this->getAuthObject(null, $this->getShibbolethConfig())
             ->authenticate($this->getLoginRequest($this->user1, false));
-        $this->assertEquals($user->cat_username, 'example1.testuser1');
-        $this->assertEquals($user->username, 'testuser1');
+        $this->assertEquals($user->getCatUsername(), 'example1.testuser1');
+        $this->assertEquals($user->getUsername(), 'testuser1');
     }
 
     /**
@@ -337,8 +337,8 @@ public function testLogin2(): void
     {
         $user = $this->getAuthObject(null, $this->getShibbolethConfig())
             ->authenticate($this->getLoginRequest($this->user2, false));
-        $this->assertEquals($user->cat_username, 'example2.12345');
-        $this->assertEquals($user->username, 'testuser2');
+        $this->assertEquals($user->getCatUsername(), 'example2.12345');
+        $this->assertEquals($user->getUsername(), 'testuser2');
     }
 
     /**
@@ -362,8 +362,8 @@ public function testProxyLogin(): void
     {
         $user = $this->getAuthObject(null, $this->getShibbolethConfig(), true, false)
             ->authenticate($this->getLoginRequest($this->proxyUser, true));
-        $this->assertEquals($user->cat_username, 'example1.testuser3');
-        $this->assertEquals($user->username, 'testuser3');
+        $this->assertEquals($user->getCatUsername(), 'example1.testuser3');
+        $this->assertEquals($user->getUsername(), 'testuser3');
     }
 
     /**