Implemented Enum::getEnumerators()

... to get a list all of enumerator instance of the called enumeration type
... fixes #45

Author: marc-mabe

src/MabeEnum/Enum.php

@@ -250,6 +250,16 @@ final public static function clear()
         unset(self::$instances[$class], self::$constants[$class]);
     }
 
+    /**
+     * Get a list of enumerator instances ordered by ordinal number
+     *
+     * @return static[]
+     */
+    final public static function getEnumerators()
+    {
+        return array_map('self::getByName', array_keys(self::detectConstants(get_called_class())));
+    }
+
     /**
      * Get all available constants of the called class
      *

tests/MabeEnumTest/EnumTest.php

@@ -106,6 +106,22 @@ public function testGetByExtendedInstanceOfKnownValue()
         EnumBasic::get($enum);
     }
 
+    public function testGetEnumerators()
+    {
+        $constants   = EnumInheritance::getConstants();
+        $enumerators = EnumInheritance::getEnumerators();
+
+        $this->assertSame(count($constants), count($enumerators));
+        for ($i = 0; $i < count($enumerators); ++$i) {
+            $this->assertArrayHasKey($i, $enumerators);
+            $this->assertInstanceOf('MabeEnumTest\TestAsset\EnumInheritance', $enumerators[$i]);
+
+            $enumerator = $enumerators[$i];
+            $this->assertArrayHasKey($enumerator->getName(), $constants);
+            $this->assertSame($constants[$enumerator->getName()], $enumerator->getValue());
+        }
+    }
+
     public function testGetAllValues()
     {
         $constants = EnumBasic::getConstants();