1 files changed, 47 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_jsterm_completion_dollar_zero.js b/devtools/client/webconsole/test/browser/browser_jsterm_completion_dollar_zero.js
new file mode 100644
index 0000000000..911287cc71
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_jsterm_completion_dollar_zero.js
@@ -0,0 +1,47 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests that code completion works properly on $0.
+
+"use strict";
+
+const TEST_URI = `data:text/html;charset=utf-8,<!DOCTYPE html>
+<head>
+  <title>$0 completion test</title>
+</head>
+<body>
+  <div>
+    <h1>$0 completion test</h1>
+    <p>This is some example text</p>
+  </div>
+</body>`;
+
+add_task(async function () {
+  const toolbox = await openNewTabAndToolbox(TEST_URI, "inspector");
+  await selectNodeWithPicker(toolbox, "h1");
+
+  info("Picker mode stopped, <h1> selected, now switching to the console");
+  const hud = await openConsole();
+  const { jsterm } = hud;
+
+  await clearOutput(hud);
+
+  const { autocompletePopup } = jsterm;
+
+  await setInputValueForAutocompletion(hud, "$0.");
+  ok(
+    hasPopupLabel(autocompletePopup, "attributes"),
+    "autocomplete popup has expected items"
+  );
+  is(autocompletePopup.isOpen, true, "autocomplete popup is open");
+
+  await setInputValueForAutocompletion(hud, "$0.attributes.");
+  is(autocompletePopup.isOpen, true, "autocomplete popup is open");
+  ok(
+    hasPopupLabel(autocompletePopup, "getNamedItem"),
+    "autocomplete popup has expected items"
+  );
+
+  info("Close autocomplete popup");
+  await closeAutocompletePopup(hud);
+});