Adds Enum::equals()

Adds equals method to ease comparison between instances.

Author: jeremykendall

src/Enum.php

@@ -73,6 +73,16 @@ public function __toString()
         return (string)$this->value;
     }
 
+    /**
+     * Compares one Enum with another.
+     *
+     * @return bool True if Enums are equal, false if not equal
+     */
+    public function equals(Enum $enum)
+    {
+        return $this->getValue() === $enum->getValue();
+    }
+
     /**
      * Returns the names (keys) of all constants in the Enum class
      *

tests/EnumTest.php

@@ -213,4 +213,13 @@ public function searchProvider() {
             array(array(), false),
         );
     }
+
+    public function testEquals()
+    {
+        $enum = new EnumFixture(EnumFixture::FOO);
+        $this->assertTrue($enum->equals(EnumFixture::FOO()));
+
+        $enum = new EnumFixture(EnumFixture::PROBLEMATIC_BOOLEAN_FALSE);
+        $this->assertFalse($enum->equals(EnumFixture::PROBLEMATIC_EMPTY_STRING()));
+    }
 }