1 files changed, 48 insertions, 0 deletions
diff --git a/cli/tests/unit/opcall_test.ts b/cli/tests/unit/opcall_test.ts
new file mode 100644
index 000000000..6bade6545
--- /dev/null
+++ b/cli/tests/unit/opcall_test.ts
@@ -0,0 +1,48 @@
+import { assertStringIncludes, unitTest, unreachable } from "./test_util.ts";
+
+unitTest(async function sendAsyncStackTrace() {
+  const buf = new Uint8Array(10);
+  const rid = 10;
+  try {
+    await Deno.read(rid, buf);
+    unreachable();
+  } catch (error) {
+    const s = error.stack.toString();
+    console.log(s);
+    assertStringIncludes(s, "opcall_test.ts");
+    assertStringIncludes(s, "read");
+  }
+});
+
+declare global {
+  namespace Deno {
+    // deno-lint-ignore no-explicit-any
+    var core: any; // eslint-disable-line no-var
+  }
+}
+
+unitTest(async function opsAsyncBadResource(): Promise<void> {
+  try {
+    const nonExistingRid = 9999;
+    await Deno.core.opAsync(
+      "op_read_async",
+      nonExistingRid,
+      new Uint8Array(0),
+    );
+  } catch (e) {
+    if (!(e instanceof Deno.errors.BadResource)) {
+      throw e;
+    }
+  }
+});
+
+unitTest(function opsSyncBadResource(): void {
+  try {
+    const nonExistingRid = 9999;
+    Deno.core.opSync("op_read_sync", nonExistingRid, new Uint8Array(0));
+  } catch (e) {
+    if (!(e instanceof Deno.errors.BadResource)) {
+      throw e;
+    }
+  }
+});