1 files changed, 51 insertions, 0 deletions
diff --git a/devtools/client/inspector/rules/test/browser_rules_filtereditor-commit-on-ENTER.js b/devtools/client/inspector/rules/test/browser_rules_filtereditor-commit-on-ENTER.js
new file mode 100644
index 0000000000..7237f0c997
--- /dev/null
+++ b/devtools/client/inspector/rules/test/browser_rules_filtereditor-commit-on-ENTER.js
@@ -0,0 +1,51 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests the Filter Editor Tooltip committing changes on ENTER
+
+const TEST_URL = URL_ROOT + "doc_filter.html";
+
+add_task(async function () {
+  await addTab(TEST_URL);
+  const { view } = await openRuleView();
+
+  info("Get the filter swatch element");
+  const swatch = getRuleViewProperty(
+    view,
+    "body",
+    "filter"
+  ).valueSpan.querySelector(".ruleview-filterswatch");
+
+  info("Click on the filter swatch element");
+  // Clicking on a cssfilter swatch sets the current filter value in the tooltip
+  // which, in turn, makes the FilterWidget emit an "updated" event that causes
+  // the rule-view to refresh. So we must wait for the ruleview-changed event.
+  let onRuleViewChanged = view.once("ruleview-changed");
+  swatch.click();
+  await onRuleViewChanged;
+
+  info("Get the cssfilter widget instance");
+  const filterTooltip = view.tooltips.getTooltip("filterEditor");
+  const widget = filterTooltip.widget;
+
+  info("Set a new value in the cssfilter widget");
+  onRuleViewChanged = view.once("ruleview-changed");
+  widget.setCssValue("blur(2px)");
+  await waitForComputedStyleProperty("body", null, "filter", "blur(2px)");
+  await onRuleViewChanged;
+  ok(true, "Changes previewed on the element");
+
+  info("Press RETURN to commit changes");
+  // Pressing return in the cssfilter tooltip triggeres 2 ruleview-changed
+  onRuleViewChanged = waitForNEvents(view, "ruleview-changed", 2);
+  EventUtils.sendKey("RETURN", widget.styleWindow);
+  await onRuleViewChanged;
+
+  is(
+    await getComputedStyleProperty("body", null, "filter"),
+    "blur(2px)",
+    "The elemenet's filter was kept after RETURN"
+  );
+});