added test for equal result of both adapters

Author: Christoph Singer

tests/PHPExif/ExifTest.php

@@ -427,4 +427,33 @@ public function testGetOrientation()
         $this->exif->setRawData($data);
         $this->assertEquals($expected, $this->exif->getOrientation());
     }
+
+    /**
+     * Test that the values returned by both adapters are equal
+     */
+    public function testAdapterConsistency()
+    {
+        $reflClass = new \ReflectionClass('\PHPExif\Exif');
+        $methods = $reflClass->getMethods(ReflectionMethod::IS_PUBLIC);
+        $file = PHPEXIF_TEST_ROOT . '/files/morning_glory_pool_500.jpg';
+
+        $adapter_exiftool = new \PHPExif\Reader\Adapter\Exiftool();
+        $adapter_native = new \PHPExif\Reader\Adapter\Native();
+
+        $result_exiftool = $adapter_exiftool->getExifFromFile($file);
+        $result_native = $adapter_native->getExifFromFile($file);
+
+        // find all Getter methods on the results and compare its output
+        foreach ($methods as $method) {
+            $name = $method->getName();
+            if (strpos($name, 'get') !== 0 || $name == 'getRawData') {
+                continue;
+            }
+            $this->assertEquals(
+                call_user_func(array($result_native, $name)),
+                call_user_func(array($result_exiftool, $name)),
+                'Adapter difference in method ' . $name
+            );
+        }
+    }
 }