diff tests/test-import-bypass.t @ 16124:0e0060bf2f44 stable

patch: fuzz more aggressively to match patch(1) behaviour

The previous code was assuming a default context of 3 lines. When fuzzing, it
would take this value in account to reduce the amount of removed line from
hunks top or bottom. For instance, if a hunk has only 2 lines of bottom
context, fuzzing with fuzz=1 would do nothing and with fuzz=2 it would remove
one of those lines. A hunk with one line of bottom context could not be fuzzed
at all.  patch(1) has apparently no such restrictions and takes the fuzz level
at face value.

- test-import.t: fuzz/offset changes at the beginning of file are explained by
  the new fuzzing behaviour and match patch(1) ones. Patching locations are
  different but those of my patch(1) do not make a lot of sense right now
  (patched output are the same)

- test-import-bypass.t: more agressive fuzzing makes a patching supposed to
  fail because of context, succeed. Change the diff to avoid this.

- test-mq-merge.t: more agressive fuzzing would allow the merged patch to apply
  with fuzz, but fortunately we disallow this behaviour. The new output is
  kept.

I have not enough experience with patch(1) fuzzing to know whether aligning our
implementation on it is a good or bad idea. Until now, it has been the
implementation reference. For instance, "qpush" tolerates fuzz (test-mq-merge.t
runs the special case of pushing merge revisions where fuzzing is forbidden).

--- a/tests/test-import-bypass.t	Mon Feb 13 16:47:31 2012 +0100
+++ b/tests/test-import-bypass.t	Mon Feb 13 17:22:35 2012 +0100
@@ -111,7 +111,15 @@
 
 Test commit editor
 
-  $ hg diff -c 1 > ../test.diff
+  $ cat > ../test.diff <<EOF
+  > diff -r 07f494440405 -r 4e322f7ce8e3 a
+  > --- a/a	Thu Jan 01 00:00:00 1970 +0000
+  > +++ b/a	Thu Jan 01 00:00:00 1970 +0000
+  > @@ -1,1 +1,2 @@
+  > -a
+  > +b
+  > +c
+  > EOF
   $ HGEDITOR=cat hg import --bypass ../test.diff
   applying ../test.diff
   
@@ -138,7 +146,7 @@
   $ hg --config patch.eol=auto import -d '0 0' -m 'test patch.eol' --bypass ../test.diff
   applying ../test.diff
   $ shortlog
-  o  3:d7805b4d2cb3 test 0 0 - default - test patch.eol
+  o  3:c606edafba99 test 0 0 - default - test patch.eol
   |
   @  2:872023de769d test 0 0 - default - makeacrlf
   |