Move diff::compare to be test::diff

1 files changed, 6 insertions, 0 deletions

diff --git a/modules/gallery_unit_test/helpers/test.php b/modules/gallery_unit_test/helpers/test.php
index 3e116808..91bd1be5 100644
--- a/modules/gallery_unit_test/helpers/test.php
+++ b/modules/gallery_unit_test/helpers/test.php
@@ -82,4 +82,10 @@ class test_Core {
     // Reload so that ORM coerces all fields into strings.
     return $tag->save()->reload();
   }
+
+  static function diff($a, $b) {
+    fwrite(fopen($a_name = tempnam("/tmp", "test"), "w"), $a);
+    fwrite(fopen($b_name = tempnam("/tmp", "test"), "w"), $b);
+    return `diff $a_name $b_name`;
+  }
 }