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diff tests/test-import.t @ 16123:b0c7525f826d stable

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patch: fix fuzzing of hunks without previous lines (issue3264) When applying hunks such as: @@ -2,1 +2,2 @@ context +change fuzzing would empty the "old" block and make patchfile.apply() traceback. Instead, we apply the new block at specified location without testing. The "bottom hunk" test was removed as patch(1) has no problem applying hunk with no context in the middle of a file.
author Patrick Mezard <patrick@mezard.eu>
date Mon, 13 Feb 2012 16:47:31 +0100
parents d7829b2ecf32
children 0e0060bf2f44
line wrap: on
line diff
--- a/tests/test-import.t	Mon Feb 13 13:51:38 2012 +0100
+++ b/tests/test-import.t	Mon Feb 13 16:47:31 2012 +0100
@@ -996,3 +996,79 @@
   c2
   c3
   c4
+
+Test corner case involving fuzz and skew
+
+  $ hg init morecornercases
+  $ cd morecornercases
+
+  $ cat > 01-no-context-beginning-of-file.diff <<EOF
+  > diff --git a/a b/a
+  > --- a/a
+  > +++ b/a
+  > @@ -1,0 +1,1 @@
+  > +line
+  > EOF
+
+  $ cat > 02-no-context-middle-of-file.diff <<EOF
+  > diff --git a/a b/a
+  > --- a/a
+  > +++ b/a
+  > @@ -1,1 +1,1 @@
+  > -2
+  > +add some skew
+  > @@ -2,0 +2,1 @@
+  > +line
+  > EOF
+
+  $ cat > 03-no-context-end-of-file.diff <<EOF
+  > diff --git a/a b/a
+  > --- a/a
+  > +++ b/a
+  > @@ -10,0 +10,1 @@
+  > +line
+  > EOF
+
+  $ cat > a <<EOF
+  > 1
+  > 2
+  > 3
+  > 4
+  > EOF
+  $ hg ci -Am adda a
+  $ for p in *.diff; do
+  >   hg import -v --no-commit $p
+  >   cat a
+  >   hg revert -aqC a
+  >   # patch -p1 < $p
+  >   # cat a
+  >   # hg revert -aC a
+  > done
+  applying 01-no-context-beginning-of-file.diff
+  patching file a
+  applied to working directory
+  1
+  line
+  2
+  3
+  4
+  applying 02-no-context-middle-of-file.diff
+  patching file a
+  Hunk #1 succeeded at 2 (offset 1 lines).
+  Hunk #2 succeeded at 4 (offset 1 lines).
+  applied to working directory
+  1
+  add some skew
+  3
+  line
+  4
+  applying 03-no-context-end-of-file.diff
+  patching file a
+  Hunk #1 succeeded at 5 (offset -6 lines).
+  applied to working directory
+  1
+  2
+  3
+  4
+  line
+