diff --git a/tests/units/Sizers/Original.php b/tests/units/Sizers/Original.php
new file mode 100644
index 0000000..a333368
--- /dev/null
+++ b/tests/units/Sizers/Original.php
@@ -0,0 +1,36 @@
+<?php
+/* image-transform | https://github.com/jobyone/image-transform | MIT License */
+namespace ByJoby\ImageTransform\tests\units\Sizers;
+
+use atoum;
+use ByJoby\ImageTransform\Sizers\Original as SizerUnderTest;
+use ByJoby\ImageTransform\tests\units\mock\MockDriver;
+
+class Original extends atoum
+{
+    public function testRotation()
+    {
+        $this
+            ->given($image = $this->image(__DIR__.'/../100x200.jpg'))
+            ->integer($image->width())->isEqualTo(100)
+            ->integer($image->height())->isEqualTo(200)
+            ->variable($image->sizer()->resizeToWidth())->isNull()
+            ->variable($image->sizer()->resizeToHeight())->isNull()
+            ->variable($image->sizer()->cropToWidth())->isNull()
+            ->variable($image->sizer()->cropToHeight())->isNull()
+            ->given($image->rotate())
+                ->integer($image->width())->isEqualTo(200)
+                ->integer($image->height())->isEqualTo(100)
+                ->variable($image->sizer()->resizeToWidth())->isNull()
+                ->variable($image->sizer()->resizeToHeight())->isNull()
+                ->variable($image->sizer()->cropToWidth())->isNull()
+                ->variable($image->sizer()->cropToHeight())->isNull()
+        ;
+    }
+
+    protected function image(string $path)
+    {
+        $driver = new MockDriver();
+        return $driver->image($path, new SizerUnderTest());
+    }
+}