6821 image_resize unit test

6821-resize-unit-test.patch

Index: tests/image/resize.php
===================================================================
--- tests/image/resize.php	(revision 1017)
+++ tests/image/resize.php	(working copy)
@@ -123,4 +123,23 @@
 		unlink($image);
 	}
 
+	/**
+	 * Try resizing a non-existent image
+	 * @ticket 6821
+	 */
+	public function test_resize_non_existent_image() {
+		$image = image_resize( DIR_TESTDATA.'/images/test-non-existent-image.jpg', 25, 25 );
+		$this->assertInstanceOf( 'WP_Error', $image );
+		$this->assertEquals( 'error_loading_image', $image->get_error_code() );
+	}
+	
+	/**
+	 * Try resizing a php file (bad image)
+	 * @ticket 6821
+	 */
+	public function test_resize_bad_image() {
+		$image = image_resize( DIR_TESTDATA.'/images/test-image.psd', 25, 25 );
+		$this->assertInstanceOf( 'WP_Error', $image );
+		$this->assertEquals( 'invalid_image', $image->get_error_code() );
+	}
 }

Test on line 24 is invalid for Imagick because Imagick supports reading from PSD.
Note from Marko: "Are you surprised? I am."