t6022: Add testcase for merging a renamed file with a simple change

This is a testcase that was broken by b2c8c0a (merge-recursive: When we
detect we can skip an update, actually skip it 2011-02-28) and fixed by
6db4105 (Revert "Merge branch 'en/merge-recursive'" 2011-05-19).  Include
this testcase to ensure we don't regress it again.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t6022-merge-rename.sh b/t/t6022-merge-rename.sh
index 11c5c60fff0d6759e253e59f9f59307b7bcca498..6ff4bd26ad72b0f7da29476be23a6f3e88e4a05d 100755 (executable)
--- a/t/t6022-merge-rename.sh
+++ b/t/t6022-merge-rename.sh
@@ -673,4 +673,31 @@ test_expect_failure 'avoid unnecessary update, with D/F conflict' '
        test_cmp expect actual # "df" should have stayed intact
 '
 
+test_expect_success 'setup merge of rename + small change' '
+       git reset --hard &&
+       git checkout --orphan rename-plus-small-change &&
+       git rm -rf . &&
+       git clean -fdqx &&
+
+       echo ORIGINAL >file &&
+       git add file &&
+
+       test_tick &&
+       git commit -m Initial &&
+       git checkout -b rename_branch &&
+       git mv file renamed_file &&
+       git commit -m Rename &&
+       git checkout rename-plus-small-change &&
+       echo NEW-VERSION >file &&
+       git commit -a -m Reformat
+'
+
+test_expect_success 'merge rename + small change' '
+       git merge rename_branch &&
+
+       test 1 -eq $(git ls-files -s | wc -l) &&
+       test 0 -eq $(git ls-files -o | wc -l) &&
+       test $(git rev-parse HEAD:renamed_file) = $(git rev-parse HEAD~1:file)
+'
+
 test_done