diff -r 31e9f66863f3 -r 093e8a5e995f tests/test-import-bypass.t
--- a/tests/test-import-bypass.t	Tue Mar 10 11:01:10 2015 -0700
+++ b/tests/test-import-bypass.t	Fri Mar 06 22:56:19 2015 -0800
@@ -112,6 +112,9 @@
   $ hg import --bypass --similarity 50 ../test.diff
   abort: cannot use --similarity with --bypass
   [255]
+  $ hg import --exact --prefix dir/ ../test.diff
+  abort: cannot use --exact with --prefix
+  [255]
 
 Test commit editor
 (this also tests that editor is invoked, if the patch doesn't contain