1 files changed, 21 insertions, 0 deletions
diff --git a/unit-tests/varmod-to-upper.mk b/unit-tests/varmod-to-upper.mk
new file mode 100644
index 0000000000000..26c0b25e5142b
--- /dev/null
+++ b/unit-tests/varmod-to-upper.mk
@@ -0,0 +1,21 @@
+# $NetBSD: varmod-to-upper.mk,v 1.4 2020/08/28 17:21:02 rillig Exp $
+#
+# Tests for the :tu variable modifier, which returns the words in the
+# variable value, converted to uppercase.
+
+.if ${:UUPPER:tu} != "UPPER"
+.error
+.endif
+
+.if ${:Ulower:tu} != "LOWER"
+.error
+.endif
+
+.if ${:UMixeD case.:tu} != "MIXED CASE."
+.error
+.endif
+
+# The :tu and :tl modifiers operate on the variable value as a single string,
+# not as a list of words. Therefore, the adjacent spaces are preserved.
+mod-tu-space:
+	@echo $@: ${a   b:L:tu:Q}