[PATCH v2 1/3] Add tests for describe with --work-tree

[Sebastian Staudt <koraktor@gmail.com>]

The dirty ones are already passing, but just because describe is comparing
with the wrong working tree.

Signed-off-by: Sebastian Staudt <koraktor@gmail.com>
---
 t/t6120-describe.sh | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/t/t6120-describe.sh b/t/t6120-describe.sh
index d639d94696..9a6bd1541f 100755
--- a/t/t6120-describe.sh
+++ b/t/t6120-describe.sh
@@ -28,6 +28,24 @@ check_describe () {
 	'
 }
 
+check_describe_worktree () {
+  cd "$TEST_DIRECTORY"
+	expect="$1"
+	shift
+	R=$(git --git-dir "$TRASH_DIRECTORY/.git" --work-tree "$TRASH_DIRECTORY" describe "$@" 2>err.actual)
+	S=$?
+	cat err.actual >&3
+	test_expect_success "describe with --work-tree $*" '
+	test $S = 0 &&
+	case "$R" in
+	$expect)	echo happy ;;
+	*)	echo "Oops - $R is not $expect";
+		false ;;
+	esac
+	'
+  cd "$TRASH_DIRECTORY"
+}
+
 test_expect_success setup '
 
 	test_tick &&
@@ -145,14 +163,20 @@ check_describe A-* HEAD
 
 check_describe "A-*[0-9a-f]" --dirty
 
+check_describe_worktree "A-*[0-9a-f]" --dirty
+
 test_expect_success 'set-up dirty work tree' '
 	echo >>file
 '
 
 check_describe "A-*[0-9a-f]-dirty" --dirty
 
+check_describe_worktree "A-*[0-9a-f]-dirty" --dirty
+
 check_describe "A-*[0-9a-f].mod" --dirty=.mod
 
+check_describe_worktree "A-*[0-9a-f].mod" --dirty=.mod
+
 test_expect_success 'describe --dirty HEAD' '
 	test_must_fail git describe --dirty HEAD
 '
-- 
2.20.1