added Image::mime()

src/Intervention/Image/Image.php

@@ -223,6 +223,16 @@ class Image extends File
         return $this->getSize()->height;
     }
 
+    /**
+     * Reads mime type
+     *
+     * @return string
+     */
+    public function mime()
+    {
+        return $this->mime;
+    }
+
     /**
      * Returns encoded image data in string conversion
      *

tests/ImageTest.php

@@ -51,6 +51,12 @@ class ImageTest extends PHPUnit_Framework_TestCase
         $image->filter($demoFilter);
     }
 
+    public function testMime()
+    {
+        $image = $this->getTestImage();
+        $this->assertEquals('image/png', $image->mime());
+    }
+
     private function getTestImage()
     {
         $size = Mockery::mock('\Intervention\Image\Size', array(800, 600));
@@ -60,6 +66,7 @@ class ImageTest extends PHPUnit_Framework_TestCase
         $command->shouldReceive('getOutput')->andReturn('mock');
         $driver->shouldReceive('executeCommand')->andReturn($command);
         $image = new Image($driver, 'mock');
+        $image->mime = 'image/png';
 
         return $image;
     }