git/t/t4136-apply-check.sh
Johannes Schindelin 22cb3835b9 apply --recount: allow "no-op hunks"
When editing patches e.g. in `git add -e`, it is quite common that a
hunk ends up having no -/+ lines, i.e. it is now supposed to do nothing.

This use case was broken by ad6e8ed37b (apply: reject a hunk that does
not do anything, 2015-06-01) with the good intention of catching a very
real, different issue in hand-edited patches.

So let's use the `--recount` option as the tell-tale whether the user
would actually be okay with no-op hunks.

Add a test case to make sure that this use case does not regress again.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-13 13:02:52 +09:00

63 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 '`apply --recount` allows no-op patch' '
echo 1 >1 &&
git apply --recount --check <<-\EOF
diff --get a/1 b/1
index 6696ea4..606eddd 100644
--- a/1
+++ b/1
@@ -1,1 +1,1 @@
1
EOF
'
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