git/t/t4133-apply-filenames.sh
René Scharfe 4269974179 apply: check git diffs for missing old filenames
2c93286a (fix "git apply --index ..." not to deref NULL) added a check
for git patches missing a +++ line, preventing a segfault.  Check for
missing --- lines as well, and add a test for each case.

Found by Vegard Nossum using AFL.

Original-patch-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-27 10:58:30 -07:00

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#!/bin/sh
#
# Copyright (c) 2010 Andreas Gruenbacher
#
test_description='git apply filename consistency check'
. ./test-lib.sh
test_expect_success setup '
cat > bad1.patch <<EOF &&
diff --git a/f b/f
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/f-blah
@@ -0,0 +1 @@
+1
EOF
cat > bad2.patch <<EOF
diff --git a/f b/f
deleted file mode 100644
index d00491f..0000000
--- b/f-blah
+++ /dev/null
@@ -1 +0,0 @@
-1
EOF
'
test_expect_success 'apply diff with inconsistent filenames in headers' '
test_must_fail git apply bad1.patch 2>err &&
test_i18ngrep "inconsistent new filename" err &&
test_must_fail git apply bad2.patch 2>err &&
test_i18ngrep "inconsistent old filename" err
'
test_expect_success 'apply diff with new filename missing from headers' '
cat >missing_new_filename.diff <<-\EOF &&
diff --git a/f b/f
index 0000000..d00491f
--- a/f
@@ -0,0 +1 @@
+1
EOF
test_must_fail git apply missing_new_filename.diff 2>err &&
test_i18ngrep "lacks filename information" err
'
test_expect_success 'apply diff with old filename missing from headers' '
cat >missing_old_filename.diff <<-\EOF &&
diff --git a/f b/f
index d00491f..0000000
+++ b/f
@@ -1 +0,0 @@
-1
EOF
test_must_fail git apply missing_old_filename.diff 2>err &&
test_i18ngrep "lacks filename information" err
'
test_done