1 files changed, 57 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_webconsole_deprecation_warning.js b/devtools/client/webconsole/test/browser/browser_webconsole_deprecation_warning.js
new file mode 100644
index 0000000000..726ece98c9
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_webconsole_deprecation_warning.js
@@ -0,0 +1,57 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Check that calling deprecated getter displays a deprecation warning.
+const TEST_URI =
+  "data:text/html;charset=utf8,<!DOCTYPE html><h1>Deprecation warning";
+
+add_task(async function () {
+  const hud = await openNewTabAndConsole(TEST_URI);
+
+  const deprecatedWarningMessageText = "mozPressure is deprecated";
+
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
+    content.testMouseEvent = new content.MouseEvent("click");
+    content.wrappedJSObject.console.log("oi-test", content.testMouseEvent);
+  });
+  const node = await waitFor(() => findConsoleAPIMessage(hud, "oi-test"));
+
+  info("Expand the MouseEvent object");
+  const oi = node.querySelector(".tree");
+  expandObjectInspectorNode(oi);
+  await waitFor(() => getObjectInspectorNodes(oi).length > 1);
+
+  info("Wait for a bit so any warning message could be displayed");
+  await wait(1000);
+  ok(
+    !findWarningMessage(hud, deprecatedWarningMessageText, ".warn"),
+    "Expanding the MouseEvent object didn't triggered the deprecation warning"
+  );
+
+  info("Access the deprecated getter to trigger a warning message");
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
+    content.testMouseEvent.mozPressure;
+  });
+
+  await waitFor(() =>
+    findWarningMessage(hud, deprecatedWarningMessageText, ".warn")
+  );
+  ok(
+    true,
+    "Calling the mozPressure getter did triggered the deprecation warning"
+  );
+
+  info("Clear the console and access the deprecated getter again");
+  await clearOutput(hud);
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
+    content.testMouseEvent.mozPressure;
+  });
+  info("Wait for a bit so any warning message could be displayed");
+  await wait(1000);
+  ok(
+    !findWarningMessage(hud, deprecatedWarningMessageText, ".warn"),
+    "Calling the mozPressure getter a second time did not trigger the deprecation warning again"
+  );
+});