1 files changed, 33 insertions, 0 deletions
diff --git a/devtools/server/tests/xpcshell/test_console_eval-01.js b/devtools/server/tests/xpcshell/test_console_eval-01.js
new file mode 100644
index 0000000000..abb6ddc605
--- /dev/null
+++ b/devtools/server/tests/xpcshell/test_console_eval-01.js
@@ -0,0 +1,33 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/*
+ * Check that is possible to evaluate JS with evaluation timeouts in place.
+ */
+
+add_task(
+  threadFrontTest(async ({ commands }) => {
+    await commands.scriptCommand.execute(`
+      function fib(n) {
+        if (n == 1 || n == 0) {
+          return 1;
+        }
+
+        return fib(n-1) + fib(n-2)
+      }
+    `);
+
+    const normalResult = await commands.scriptCommand.execute("fib(1)", {
+      eager: true,
+    });
+    Assert.equal(normalResult.result, 1, "normal eval");
+
+    const timeoutResult = await commands.scriptCommand.execute("fib(100)", {
+      eager: true,
+    });
+    Assert.equal(typeof timeoutResult.result, "object", "timeout eval");
+    Assert.equal(timeoutResult.result.type, "undefined", "timeout eval type");
+  })
+);