1 files changed, 26 insertions, 0 deletions
diff --git a/unit-tests/opt-debug-for.mk b/unit-tests/opt-debug-for.mk
new file mode 100644
index 000000000000..1de770de4a2f
--- /dev/null
+++ b/unit-tests/opt-debug-for.mk
@@ -0,0 +1,26 @@
+# $NetBSD: opt-debug-for.mk,v 1.4 2020/10/05 19:27:48 rillig Exp $
+#
+# Tests for the -df command line option, which adds debug logging for
+# parsing and evaluating .for loops.
+
+.MAKEFLAGS: -df
+
+# XXX: In the debug log, the "new loop 2" appears out of context.
+# There should be a "begin loop 1" before, and all these messages should
+# contain line number information.
+#
+# XXX: The "loop body" should print the nesting level as well.
+#
+# XXX: It is hard to extract any information from the debug log since
+# the "begin" and "end" events are not balanced and the nesting level
+# is not printed consistently.  It would also be helpful to mention the
+# actual substitutions, such as "For 1: outer=b".
+#
+.for outer in a b
+.  for inner in 1 2
+VAR.${outer}${inner}=	value
+.  endfor
+.endfor
+
+all:
+	@:;