[PATCH 3/7] submodule update --init: test path handling in recursive submodules

[Stefan Beller <sbeller@google.com>]

This demonstrates a failure to handle paths correctly.
Instead of getting the expected
    Submodule 'submodule' (${pwd}/submodule) registered for path '../super/submodule'
the `super` directory is omitted and you get
    Submodule 'submodule' (${pwd}/submodule) registered for path '../submodule'
instead.

Signed-off-by: Stefan Beller <sbeller@google.com>
---
 t/t7406-submodule-update.sh | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index 68ea31d..c1b9ffa 100755
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -63,6 +63,10 @@ test_expect_success 'setup a submodule tree' '
 	 git submodule add ../none none &&
 	 test_tick &&
 	 git commit -m "none"
+	) &&
+	git clone . recursivesuper &&
+	( cd recursivesuper
+	 git submodule add ../super super
 	)
 '
 
@@ -95,6 +99,35 @@ test_expect_success 'submodule update from subdirectory' '
 	)
 '
 
+supersha1=$(cd super && git rev-parse HEAD)
+mergingsha1=$(cd super/merging && git rev-parse HEAD)
+nonesha1=$(cd super/none && git rev-parse HEAD)
+rebasingsha1=$(cd super/rebasing && git rev-parse HEAD)
+submodulesha1=$(cd super/submodule && git rev-parse HEAD)
+pwd=$(pwd)
+
+cat <<EOF >expect
+Submodule path '../super': checked out '${supersha1}'
+Submodule 'merging' (${pwd}/merging) registered for path '../super/merging'
+Submodule 'none' (${pwd}/none) registered for path '../super/none'
+Submodule 'rebasing' (${pwd}/rebasing) registered for path '../super/rebasing'
+Submodule 'submodule' (${pwd}/submodule) registered for path '../super/submodule'
+Submodule path '../super/merging': checked out '${mergingsha1}'
+Submodule path '../super/none': checked out '${nonesha1}'
+Submodule path '../super/rebasing': checked out '${rebasingsha1}'
+Submodule path '../super/submodule': checked out '${submodulesha1}'
+EOF
+
+test_expect_failure 'submodule update --init --recursive from subdirectory' '
+	git -C recursivesuper/super reset --hard HEAD^ &&
+	(cd recursivesuper &&
+	 mkdir tmp &&
+	 cd tmp &&
+	 git submodule update --init --recursive ../super >../../actual
+	) &&
+	test_cmp expect actual
+'
+
 apos="'";
 test_expect_success 'submodule update does not fetch already present commits' '
 	(cd submodule &&
-- 
2.8.0.rc4.23.gd22361a.dirty