This patch introduces basic tests for

	git submodule add

covering the basic functionality and the -b parameter.

A trivial update --init test fix freeloads on this commit as well.

Signed-off-by: Petr Baudis <pasky@suse.cz>
---

 t/t7400-submodule-basic.sh |   28 +++++++++++++++++++++++++++-
 1 files changed, 27 insertions(+), 1 deletions(-)

diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 6c7b902..ab5eb1e 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -200,7 +200,7 @@ test_expect_success 'update --init' '
 
 	mv init init2 &&
 	git config -f .gitmodules submodule.example.url "$(pwd)/init2" &&
-	git config --remove-section submodule.example
+	git config --remove-section submodule.example &&
 	git submodule update init > update.out &&
 	grep "not initialized" update.out &&
 	test ! -d init/.git &&
@@ -209,4 +209,30 @@ test_expect_success 'update --init' '
 
 '
 
+test_expect_success 'submodule add' '
+
+	git submodule add "$(pwd)/init2" init-added &&
+	test -d init-added/.git &&
+	[ "$(git config -f .gitmodules submodule.init-added.url)" = "$(pwd)/init2" ] &&
+	[ "$(git config -f .gitmodules submodule.init-added.path)" = "init-added" ]
+
+'
+
+test_expect_success 'submodule add -b' '
+
+	(
+		cd init2 &&
+		git checkout -b branch &&
+		echo t >s &&
+		git add s &&
+		git commit -m "change branch" &&
+		git checkout master
+	) &&
+	git submodule add -b branch -- "$(pwd)/init2" init-added-b &&
+	test -d init-added-b/.git &&
+	[ "$(git config -f .gitmodules submodule.init-added-b.url)" = "$(pwd)/init2" ] &&
+	[ "$(cd init2 && git rev-parse branch)" = "$(cd init-added-b && git rev-parse HEAD)" ]
+
+'
+
 test_done

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