1 files changed, 39 insertions, 0 deletions
diff --git a/devtools/client/inspector/boxmodel/test/browser_boxmodel_sync.js b/devtools/client/inspector/boxmodel/test/browser_boxmodel_sync.js
new file mode 100644
index 0000000000..fed1e85519
--- /dev/null
+++ b/devtools/client/inspector/boxmodel/test/browser_boxmodel_sync.js
@@ -0,0 +1,39 @@
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test editing box model syncs with the rule view.
+
+const TEST_URI = "<p>hello</p>";
+
+add_task(async function () {
+  await addTab("data:text/html," + encodeURIComponent(TEST_URI));
+  const { inspector, boxmodel } = await openLayoutView();
+
+  info("When a property is edited, it should sync in the rule view");
+
+  await selectNode("p", inspector);
+
+  info("Modify padding-bottom in box model view");
+  const span = boxmodel.document.querySelector(
+    ".boxmodel-padding.boxmodel-bottom > span"
+  );
+  EventUtils.synthesizeMouseAtCenter(span, {}, boxmodel.document.defaultView);
+  const editor = boxmodel.document.querySelector(
+    ".styleinspector-propertyeditor"
+  );
+
+  const onRuleViewRefreshed = once(inspector, "rule-view-refreshed");
+  EventUtils.synthesizeKey("7", {}, boxmodel.document.defaultView);
+  await waitForUpdate(inspector);
+  await onRuleViewRefreshed;
+  is(editor.value, "7", "Should have the right value in the editor.");
+  EventUtils.synthesizeKey("VK_RETURN", {}, boxmodel.document.defaultView);
+
+  info("Check that the property was synced with the rule view");
+  const ruleView = selectRuleView(inspector);
+  const ruleEditor = getRuleViewRuleEditor(ruleView, 0);
+  const textProp = ruleEditor.rule.textProps[0];
+  is(textProp.value, "7px", "The property has the right value");
+});