[PATCH 3/3] clone: Add t5614 to test cloning submodules with shallowness involved

[Stefan Beller <sbeller@google.com>]

There are some inherent issues with shallow clones and submodules, such
as having not having a commit available the superproject may point to
in the submodule due to being shallow. Use the new file t5614 to document
and test expectations in this area.

Signed-off-by: Stefan Beller <sbeller@google.com>
---

Notes:
    $gmane/288916 does renaming operations,
    "[PATCH] clone tests: rename t57* => t56*",
    such that the first 13 spots in t56* are taken.
    So we'll go with ..14 to not cause conflicts.
    (If not having that renaming patch in mind, you
    may end up aksing yourself "why ..14?")

 t/t5614-clone-submodules.sh | 82 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)
 create mode 100755 t/t5614-clone-submodules.sh

diff --git a/t/t5614-clone-submodules.sh b/t/t5614-clone-submodules.sh
new file mode 100755
index 0000000..a66c2db
--- /dev/null
+++ b/t/t5614-clone-submodules.sh
@@ -0,0 +1,82 @@
+#!/bin/sh
+
+test_description='Test shallow cloning of repos with submodules'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+	git checkout -b master &&
+	test_commit commit1 &&
+	test_commit commit2 &&
+	mkdir sub &&
+	(
+		cd sub &&
+		git init &&
+		test_commit subcommit1 &&
+		test_commit subcommit2
+	) &&
+	git submodule add ./sub &&
+	git commit -m "add submodule"
+'
+
+test_expect_success 'nonshallow clone implies nonshallow submodule' '
+	test_when_finished "rm -rf super_clone" &&
+	git clone --recurse-submodules . super_clone &&
+	(
+		cd super_clone &&
+		git log --oneline >lines &&
+		test_line_count = 3 lines
+	) &&
+	(
+		cd super_clone/sub &&
+		git log --oneline >lines &&
+		test_line_count = 2 lines
+	)
+'
+
+test_expect_success 'shallow clone implies shallow submodule' '
+	test_when_finished "rm -rf super_clone" &&
+	git clone --recurse-submodules --no-local --depth 1 . super_clone &&
+	(
+		cd super_clone &&
+		git log --oneline >lines &&
+		test_line_count = 1 lines
+	) &&
+	(
+		cd super_clone/sub &&
+		git log --oneline >lines &&
+		test_line_count = 1 lines
+	)
+'
+
+test_expect_success 'shallow clone with non shallow submodule' '
+	test_when_finished "rm -rf super_clone" &&
+	git clone --recurse-submodules --no-local --depth 1 --no-shallow-submodules . super_clone &&
+	(
+		cd super_clone &&
+		git log --oneline >lines &&
+		test_line_count = 1 lines
+	) &&
+	(
+		cd super_clone/sub &&
+		git log --oneline >lines &&
+		test_line_count = 2 lines
+	)
+'
+
+test_expect_success 'non shallow clone with shallow submodule' '
+	test_when_finished "rm -rf super_clone" &&
+	git clone --recurse-submodules --no-local --shallow-submodules . super_clone &&
+	(
+		cd super_clone &&
+		git log --oneline >lines &&
+		test_line_count = 3 lines
+	) &&
+	(
+		cd super_clone/sub &&
+		git log --oneline >lines &&
+		test_line_count = 1 lines
+	)
+'
+
+test_done
-- 
2.7.0.rc0.42.g8e9204f.dirty