diff tests/test-grep.t @ 38649:0d0f8bd692c4

grep: reject --diff --all-files

This combination doesn't make any sense since --diff is the flag to search
change history, whereas --all-files is to include unmodified contents.

Differential Revision: https://phab.mercurial-scm.org/D3916

--- a/tests/test-grep.t	Wed Jul 11 21:15:52 2018 +0900
+++ b/tests/test-grep.t	Wed Jul 11 21:23:18 2018 +0900
@@ -412,6 +412,12 @@
   $ hg grep -r "." "unmod" --all-files
   um:1:unmod
 
+--diff --all-files makes no sense since --diff is the option to grep history
+
+  $ hg grep --diff --all-files um
+  abort: --diff and --all-files are mutually exclusive
+  [255]
+
   $ cd ..
 
 Fix_Wdir(): test that passing wdir() t -r flag does greps on the