diff --git a/testdata/basic-modules/main.pdl b/testdata/basic-modules/main.pdl
new file mode 100644
index 0000000000000000000000000000000000000000..0c2b7f8c50c7d568047f1681b1f81c4aa5a6449b
--- /dev/null
+++ b/testdata/basic-modules/main.pdl
@@ -0,0 +1,8 @@
+import consumer as c;
+import producer::producer;
+
+composite main() {
+    channel output -> input;
+    new c::consumer(input);
+    new producer(output);
+}
\ No newline at end of file