diff --git a/mshell/tests/not.mshell b/mshell/tests/not.mshell
new file mode 100644
index 0000000..932136b
--- /dev/null
+++ b/mshell/tests/not.mshell
@@ -0,0 +1 @@
+[(false not) ([echo "Got a true"];) ([echo "Got a false" ];)] if
diff --git a/mshell/tests/not.mshell.stdout b/mshell/tests/not.mshell.stdout
new file mode 100644
index 0000000..2fd67ef
--- /dev/null
+++ b/mshell/tests/not.mshell.stdout
@@ -0,0 +1 @@
+Got a true