Added compare function 'is'

Author: marc-mabe

src/MabeEnum/Enum.php

@@ -120,6 +120,17 @@ final public function getOrdinal()
         return $ordinal;
     }
 
+    /**
+     * Compare this enum against another enum and check if it's the same value
+     *
+     * @param mixed $value
+     * @return boolean
+     */
+    final public function is($enum)
+    {
+        return $this->value === $enum || ($enum instanceof static && $this->value === $enum->getValue());
+    }
+
     /**
      * Get an enum of the given value
      *

tests/MabeEnumTest/EnumTest.php

@@ -132,6 +132,21 @@ public function testGetAllValues()
         }
     }
 
+    public function testIsBasic()
+    {
+        $enum = EnumBasic::ONE();
+
+        // by value
+        $this->assertTrue($enum->is(EnumBasic::ONE));   // same
+        $this->assertFalse($enum->is('1'));             // wrong value by strict comparison
+
+        // by instance
+        $this->assertTrue($enum->is(EnumBasic::ONE()));       // same
+        $this->assertFalse($enum->is(EnumBasic::TWO()));      // not the same
+        $this->assertTrue($enum->is(EnumInheritance::ONE())); // same by extended instance
+        $this->assertFalse($enum->is(EnumBasic2::ONE()));     // same value but different instance
+    }
+
     public function testCallingGetOrdinalTwoTimesWillResultTheSameValue()
     {
         $enum = EnumBasic::get(EnumBasic::TWO);