1 files changed, 19 insertions, 0 deletions
diff --git a/unit-tests/varmod-order.mk b/unit-tests/varmod-order.mk
new file mode 100644
index 000000000000..b079bdc34217
--- /dev/null
+++ b/unit-tests/varmod-order.mk
@@ -0,0 +1,19 @@
+# $NetBSD: varmod-order.mk,v 1.4 2020/08/16 20:43:01 rillig Exp $
+#
+# Tests for the :O variable modifier, which returns the words, sorted in
+# ascending order.
+
+NUMBERS=	one two three four five six seven eight nine ten
+
+.if ${NUMBERS:O} != "eight five four nine one seven six ten three two"
+.error ${NUMBERS:O}
+.endif
+
+# Unknown modifier "OX"
+_:=	${NUMBERS:OX}
+
+# Unknown modifier "OxXX"
+_:=	${NUMBERS:OxXX}
+
+all:
+	@:;