[BUGFIX] Symfony project root always needs to be the core package root

Classes/Core/ApplicationKernel.php

@@ -47,7 +47,7 @@ public function registerBundles(): array
      */
     public function getProjectDir(): string
     {
-        return $this->getAndCreateApplicationStructure()->getApplicationRoot();
+        return $this->getAndCreateApplicationStructure()->getCorePackageRoot();
     }
 
     /**

Classes/Core/ApplicationStructure.php

@@ -10,6 +10,18 @@
  */
 class ApplicationStructure
 {
+    /**
+     * Returns the absolute path to the phplist4-core package root.
+     *
+     * @return string the absolute path without the trailing slash.
+     *
+     * @throws \RuntimeException if there is no composer.json in the application root
+     */
+    public function getCorePackageRoot(): string
+    {
+        return dirname(__DIR__, 2);
+    }
+
     /**
      * Returns the absolute path to the application root.
      *
@@ -25,7 +37,7 @@ class ApplicationStructure
      */
     public function getApplicationRoot(): string
     {
-        $corePackagePath = dirname(__DIR__, 2);
+        $corePackagePath = $this->getCorePackageRoot();
         $corePackageIsRootPackage = interface_exists('PhpList\\PhpList4\\Tests\\Support\\Interfaces\\TestMarker');
         if ($corePackageIsRootPackage) {
             $applicationRoot = $corePackagePath;

Tests/Integration/Core/ApplicationKernelTest.php

@@ -32,15 +32,15 @@ protected function tearDown()
     /**
      * @test
      */
-    public function getProjectDirReturnsApplicationRoot()
+    public function getProjectDirReturnsCorePackacgeRoot()
     {
         self::assertSame(dirname(__DIR__, 3), $this->subject->getProjectDir());
     }
 
     /**
      * @test
      */
-    public function getRootDirReturnsApplicationRoot()
+    public function getRootDirReturnsCorePackacgeRoot()
     {
         self::assertSame(dirname(__DIR__, 3), $this->subject->getRootDir());
     }

Tests/Unit/Core/ApplicationStructureTest.php

@@ -30,4 +30,12 @@ public function getApplicationRootReturnsCoreApplicationRoot()
     {
         self::assertSame(dirname(__DIR__, 3), $this->subject->getApplicationRoot());
     }
+
+    /**
+     * @test
+     */
+    public function getCorePackageRootReturnsCorePackageRoot()
+    {
+        self::assertSame(dirname(__DIR__, 3), $this->subject->getCorePackageRoot());
+    }
 }