refactor: getValues returns only values

Author: JasonTheAdams

src/Common/AbstractEnum.php

@@ -195,11 +195,11 @@ final public function is(self $other): bool
      *
      * @since n.e.x.t
      *
-     * @return array<string, string> Map of constant names to values.
+     * @return string[] List of all enum values.
      */
     final public static function getValues(): array
     {
-        return self::getConstants();
+        return array_values(self::getConstants());
     }
 
     /**

tests/unit/Common/AbstractEnumTest.php

@@ -173,10 +173,7 @@ public function testGetValuesReturnsAllValidValues(): void
     {
         $values = ValidTestEnum::getValues();
 
-        $this->assertSame([
-            'FIRST_NAME' => 'first',
-            'LAST_NAME' => 'last',
-        ], $values);
+        $this->assertSame(['first', 'last'], $values);
     }
 
     /**