1 files changed, 41 insertions, 0 deletions
diff --git a/devtools/shared/commands/script/tests/browser_script_command_execute_document__proto__.js b/devtools/shared/commands/script/tests/browser_script_command_execute_document__proto__.js
new file mode 100644
index 0000000000..28f56ebac3
--- /dev/null
+++ b/devtools/shared/commands/script/tests/browser_script_command_execute_document__proto__.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Testing evaluating document.__proto__
+
+add_task(async () => {
+  const tab = await addTab(
+    `data:text/html;charset=utf-8,Test evaluating document.__proto__`
+  );
+  const commands = await CommandsFactory.forTab(tab);
+  await commands.targetCommand.startListening();
+
+  const evaluationResponse = await commands.scriptCommand.execute(
+    "document.__proto__"
+  );
+  checkObject(evaluationResponse, {
+    input: "document.__proto__",
+    result: {
+      type: "object",
+      actor: /[a-z]/,
+    },
+  });
+
+  ok(!evaluationResponse.exception, "no eval exception");
+  ok(!evaluationResponse.helperResult, "no helper result");
+
+  const response = await evaluationResponse.result.getPrototypeAndProperties();
+  ok(!response.error, "no response error");
+
+  const props = response.ownProperties;
+  ok(props, "response properties available");
+
+  const expectedProps = Object.getOwnPropertyNames(
+    Object.getPrototypeOf(document)
+  );
+  checkObject(Object.keys(props), expectedProps, "Same own properties.");
+
+  await commands.destroy();
+});