1 files changed, 27 insertions, 0 deletions
diff --git a/ops/tests/compile_fail/unsupported.rs b/ops/tests/compile_fail/unsupported.rs
new file mode 100644
index 000000000..1c4d6407a
--- /dev/null
+++ b/ops/tests/compile_fail/unsupported.rs
@@ -0,0 +1,27 @@
+// Copyright 2019-2020 the Deno authors. All rights reserved. MIT license.
+
+use deno_ops::op;
+
+#[op(fast)]
+fn op_result_return(a: i32, b: i32) -> Result<(), ()> {
+  a + b
+}
+
+#[op(fast)]
+fn op_u8_arg(a: u8, b: u8) {
+  //
+}
+
+#[op(fast)]
+fn op_u16_arg(a: u16, b: u16) {
+  //
+}
+
+#[op(fast)]
+async fn op_async_fn(a: i32, b: i32) -> i32 {
+  a + b
+}
+
+fn main() {
+  // pass
+}