1 files changed, 148 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_completion-existing-property_01.js b/devtools/client/inspector/rules/test/browser_rules_completion-existing-property_01.js
new file mode 100644
index 0000000000..d9333fe40c
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+++ b/devtools/client/inspector/rules/test/browser_rules_completion-existing-property_01.js
@@ -0,0 +1,148 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that CSS property names are autocompleted and cycled correctly when
+// editing an existing property in the rule view.
+
+// format :
+//  [
+//    what key to press,
+//    expected input box value after keypress,
+//    is the popup open,
+//    is a suggestion selected in the popup,
+//  ]
+
+const OPEN = true,
+  SELECTED = true;
+var testData = [
+  ["VK_RIGHT", "font", !OPEN, !SELECTED],
+  ["-", "font-size", OPEN, SELECTED],
+  ["f", "font-family", OPEN, SELECTED],
+  ["VK_BACK_SPACE", "font-f", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "font-", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "font", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "fon", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "fo", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "f", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "", !OPEN, !SELECTED],
+  ["d", "display", OPEN, SELECTED],
+  ["VK_DOWN", "dominant-baseline", OPEN, SELECTED],
+  ["VK_DOWN", "d", OPEN, SELECTED],
+  ["VK_DOWN", "direction", OPEN, SELECTED],
+  ["VK_DOWN", "display", OPEN, SELECTED],
+  ["VK_UP", "direction", OPEN, SELECTED],
+  ["VK_UP", "d", OPEN, SELECTED],
+  ["VK_UP", "dominant-baseline", OPEN, SELECTED],
+  ["VK_UP", "display", OPEN, SELECTED],
+  ["VK_BACK_SPACE", "d", !OPEN, !SELECTED],
+  ["i", "display", OPEN, SELECTED],
+  ["s", "display", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "dis", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "di", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "d", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "", !OPEN, !SELECTED],
+  ["VK_HOME", "", !OPEN, !SELECTED],
+  ["VK_END", "", !OPEN, !SELECTED],
+  ["VK_PAGE_UP", "", !OPEN, !SELECTED],
+  ["VK_PAGE_DOWN", "", !OPEN, !SELECTED],
+  ["d", "display", OPEN, SELECTED],
+  ["VK_HOME", "display", !OPEN, !SELECTED],
+  ["VK_END", "display", !OPEN, !SELECTED],
+  // Press right key to ensure caret move to end of the input on Mac OS since
+  // Mac OS doesn't move caret after pressing HOME / END.
+  ["VK_RIGHT", "display", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "displa", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "displ", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "disp", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "dis", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "di", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "d", !OPEN, !SELECTED],
+  ["VK_BACK_SPACE", "", !OPEN, !SELECTED],
+  ["f", "font-size", OPEN, SELECTED],
+  ["i", "filter", OPEN, SELECTED],
+  ["VK_LEFT", "filter", !OPEN, !SELECTED],
+  ["VK_LEFT", "filter", !OPEN, !SELECTED],
+  ["i", "fiilter", !OPEN, !SELECTED],
+  ["VK_ESCAPE", null, !OPEN, !SELECTED],
+];
+
+const TEST_URI = "<h1 style='font: 24px serif'>Header</h1>";
+
+add_task(async function () {
+  await addTab("data:text/html;charset=utf-8," + encodeURIComponent(TEST_URI));
+  const { toolbox, inspector, view } = await openRuleView();
+
+  info("Test autocompletion after 1st page load");
+  await runAutocompletionTest(toolbox, inspector, view);
+
+  info("Test autocompletion after page navigation");
+  await reloadBrowser();
+  await runAutocompletionTest(toolbox, inspector, view);
+});
+
+async function runAutocompletionTest(toolbox, inspector, view) {
+  info("Selecting the test node");
+  await selectNode("h1", inspector);
+
+  info("Focusing the css property editable field");
+  const propertyName = view.styleDocument.querySelectorAll(
+    ".ruleview-propertyname"
+  )[0];
+  const editor = await focusEditableField(view, propertyName);
+
+  info("Starting to test for css property completion");
+  for (let i = 0; i < testData.length; i++) {
+    if (!testData[i].length) {
+      continue;
+    }
+    await testCompletion(testData[i], editor, view);
+  }
+}
+
+async function testCompletion([key, completion, open, selected], editor, view) {
+  info("Pressing key " + key);
+  info("Expecting " + completion);
+  info("Is popup opened: " + open);
+  info("Is item selected: " + selected);
+
+  // Listening for the right event that will tell us when the key has been
+  // entered and processed.
+  let onSuggest;
+  if (/(left|right|back_space|escape|home|end|page_up|page_down)/gi.test(key)) {
+    info(
+      "Adding event listener for " +
+        "left|right|back_space|escape|home|end|page_up|page_down keys"
+    );
+    onSuggest = once(editor.input, "keypress");
+  } else {
+    info("Waiting for after-suggest event on the editor");
+    onSuggest = editor.once("after-suggest");
+  }
+
+  // Also listening for popup opened/closed events if needed.
+  const popupEvent = open ? "popup-opened" : "popup-closed";
+  const onPopupEvent =
+    editor.popup.isOpen !== open ? once(editor.popup, popupEvent) : null;
+
+  info("Synthesizing key " + key);
+  EventUtils.synthesizeKey(key, {}, view.styleWindow);
+
+  // Flush the debounce for the preview text.
+  view.debounce.flush();
+
+  await onSuggest;
+  await onPopupEvent;
+
+  info("Checking the state");
+  if (completion !== null) {
+    is(editor.input.value, completion, "Correct value is autocompleted");
+  }
+  if (!open) {
+    ok(!(editor.popup && editor.popup.isOpen), "Popup is closed");
+  } else {
+    ok(editor.popup.isOpen, "Popup is open");
+    is(editor.popup.selectedIndex !== -1, selected, "An item is selected");
+  }
+}