1 files changed, 70 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_completion-shortcut.js b/devtools/client/inspector/rules/test/browser_rules_completion-shortcut.js
new file mode 100644
index 0000000000..2d81a770ff
--- /dev/null
+++ b/devtools/client/inspector/rules/test/browser_rules_completion-shortcut.js
@@ -0,0 +1,70 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests the shortcut key for the suggest completion popup.
+
+const TEST_URI = "<h1 style='colo: lim'>Header</h1>";
+const TEST_SHORTCUTS = [
+  {
+    key: " ",
+    modifiers: { ctrlKey: true },
+  },
+  {
+    key: "VK_DOWN",
+    modifiers: {},
+  },
+];
+
+add_task(async function () {
+  for (const shortcut of TEST_SHORTCUTS) {
+    info(
+      "Start to test for the shortcut " +
+        `key: "${shortcut.key}" modifiers: ${Object.keys(shortcut.modifiers)}`
+    );
+
+    const tab = await addTab(
+      "data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI)
+    );
+    const { inspector, view } = await openRuleView();
+
+    info("Selecting the test node");
+    await selectNode("h1", inspector);
+
+    const prop = getTextProperty(view, 0, { colo: "lim" });
+
+    info("Test with css property name field");
+    const nameEditor = await focusEditableField(view, prop.editor.nameSpan);
+    await testCompletion(shortcut, view, nameEditor, "color");
+
+    info("Test with css property value field");
+    const valueEditor = inplaceEditor(view.styleDocument.activeElement);
+    await testCompletion(shortcut, view, valueEditor, "lime");
+
+    await removeTab(tab);
+  }
+});
+
+async function testCompletion(shortcut, view, editor, expectedValue) {
+  const spanEl = editor.elt;
+
+  info("Move cursor to the end");
+  EventUtils.synthesizeKey("VK_RIGHT", {}, view.styleWindow);
+  await waitUntil(
+    () => editor.input.selectionStart === editor.input.selectionEnd
+  );
+
+  info("Check whether the popup opens after sending the shortcut key");
+  const onPopupOpened = once(view.popup, "popup-opened");
+  EventUtils.synthesizeKey(shortcut.key, shortcut.modifiers, view.styleWindow);
+  await onPopupOpened;
+  ok(view.popup.isOpen, "The popup opened correctly");
+
+  info("Commit the suggestion");
+  const onChanged = view.once("ruleview-changed");
+  const onPopupClosed = once(view.popup, "popup-closed");
+  EventUtils.synthesizeKey("VK_RETURN", {}, view.styleWindow);
+  await Promise.all([onChanged, onPopupClosed]);
+  is(spanEl.textContent, expectedValue, "The value is set correctly");
+}