Use better autoloading for test files (#229)

* Use better autoloading for test files

* CS

* Dont use alias

* improvements

* cs

* Update branch alias

* [S3] Update core version

Author: Nyholm

Test/InternalTestCase.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace AsyncAws\Core\Test;
+
+/**
+ * Because AsyncAws use symfony/phpunit-bridge and don't requires phpunit/phpunit,
+ * this class may not exits but is required by the generator and static analyzer tools.
+ *
+ * @internal use AsyncAws\Core\Test\TestCase instead
+ */
+class InternalTestCase
+{
+    public static function assertEqualsCanonicalizing($expected, $actual, string $message = ''): void
+    {
+    }
+}

Test/TestCase.php

@@ -17,14 +17,6 @@ public static function assertHttpFormEqualsHttpForm(string $expected, string $ac
         self::assertEqualsCanonicalizing($expectedArray, $actualArray, $message);
     }
 }
-
-// Because AsyncAws use symfony/phpunit-bridge and don't requires phpunit/phpunit, this class may not exits but is required by the generator and static analyzer tools
 if (!\class_exists(PHPUnitTestCase::class)) {
-    class DummyTestCase
-    {
-        public static function assertEqualsCanonicalizing($expected, $actual, string $message = ''): void
-        {
-        }
-    }
-    \class_alias(DummyTestCase::class, PHPUnitTestCase::class);
+    \class_alias(InternalTestCase::class, PHPUnitTestCase::class);
 }