git/t/t4136-apply-check.sh
René Scharfe d70e9c5c8c apply: check git diffs for mutually exclusive header lines
A file can either be added, removed, copied, or renamed, but no two of
these actions can be done by the same patch.  Some of these combinations
provoke error messages due to missing file names, and some are only
caught by an assertion.  Check git patches already as they are parsed
and report conflicting lines on sight.

Found by Vegard Nossum using AFL.

Reported-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 14:41:10 -07:00

51 lines
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#!/bin/sh
test_description='git apply should exit non-zero with unrecognized input.'
. ./test-lib.sh
test_expect_success 'setup' '
test_commit 1
'
test_expect_success 'apply --check exits non-zero with unrecognized input' '
test_must_fail git apply --check - <<-\EOF
I am not a patch
I look nothing like a patch
git apply must fail
EOF
'
test_expect_success 'apply exits non-zero with no-op patch' '
cat >input <<-\EOF &&
diff --get a/1 b/1
index 6696ea4..606eddd 100644
--- a/1
+++ b/1
@@ -1,1 +1,1 @@
1
EOF
test_must_fail git apply --stat input &&
test_must_fail git apply --check input
'
test_expect_success 'invalid combination: create and copy' '
test_must_fail git apply --check - <<-\EOF
diff --git a/1 b/2
new file mode 100644
copy from 1
copy to 2
EOF
'
test_expect_success 'invalid combination: create and rename' '
test_must_fail git apply --check - <<-\EOF
diff --git a/1 b/2
new file mode 100644
rename from 1
rename to 2
EOF
'
test_done