diff --git a/tests/bonsai/intcmp.mk b/tests/bonsai/intcmp.mk
index e3c559e..abcff03 100755
--- a/tests/bonsai/intcmp.mk
+++ b/tests/bonsai/intcmp.mk
@@ -7,7 +7,7 @@
 # notice are preserved.  This file is offered as-is, without any warranty.
 
 .PHONY: intcmp_tests
-intcmp_tests: intcmp_help intcmp_e intcmp_g intcmp_l intcmp_combined
+intcmp_tests: intcmp_help intcmp_none intcmp_e intcmp_g intcmp_l intcmp_combined
 
 .PHONY: intcmp_help
 intcmp_help: $(BIN)/intcmp
@@ -31,6 +31,10 @@ intcmp_help: $(BIN)/intcmp
 # the invocation. If this test failed, intcmp(1) would be confusing -l for -g,
 # so that would be a good place to start looking for bugs.
 
+.PHONY: intcmp_none
+intcmp_none: $(BIN)/intcmp
+	! $(BIN)/intcmp 1 2
+
 .PHONY: intcmp_e
 intcmp_e: $(BIN)/intcmp
 	$(BIN)/intcmp   -e   3 3 3    # ==
diff --git a/tests/bonsai/mm.mk b/tests/bonsai/mm.mk
index 2b1fea6..2800460 100755
--- a/tests/bonsai/mm.mk
+++ b/tests/bonsai/mm.mk
@@ -5,13 +5,13 @@
 # permitted in any medium without royalty provided the copyright notice and this
 # notice are preserved.  This file is offered as-is, without any warranty.
 
-NAME = mm
-TARGET = $(NAME)_tests
-BINARY = $(BIN)/$(NAME)
-
 .PHONY: mm_tests
 mm_tests: mm_args mm_help mm_stderr
 
+.PHONY: mm_none
+mm_none: $(BIN)/mm
+	test "$$(printf 'meow\n' | $(BIN)/mm)" = meow
+
 .PHONY: mm_args
 # mm(1) will error if positional arguments are given without -i or -o
 mm_args: $(BIN)/mm
@@ -24,4 +24,4 @@ mm_help: $(BIN)/mm
 .PHONY: mm_stderr
 # check if stderr is empty upon specifying -e
 mm_stderr: $(BIN)/mm
-	! test "$$(printf 'test\n' | $(BIN)/mm -e 2>&1 >/dev/null)" = "test"
+	test "$$(printf 'test\n' | $(BIN)/mm -e 2>&1 >/dev/null )" = "test"