1 files changed, 37 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_webconsole_init.js b/devtools/client/webconsole/test/browser/browser_webconsole_init.js
new file mode 100644
index 0000000000..a24f4594b1
--- /dev/null
+++ b/devtools/client/webconsole/test/browser/browser_webconsole_init.js
@@ -0,0 +1,37 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const TEST_URI =
+  "http://example.com/browser/devtools/client/webconsole/" +
+  "test/browser/test-console.html";
+
+add_task(async function () {
+  const hud = await openNewTabAndConsole(TEST_URI);
+  const { ui } = hud;
+
+  ok(ui.jsterm, "jsterm exists");
+  ok(ui.wrapper, "wrapper exists");
+
+  const receievedMessages = waitForMessageByType(hud, "19", ".console-api");
+
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
+    content.wrappedJSObject.doLogs(20);
+  });
+
+  await receievedMessages;
+
+  const outputContainer = ui.outputNode.querySelector(".webconsole-output");
+  is(
+    (await findMessagesVirtualizedByType({ hud, typeSelector: ".console-api" }))
+      .length,
+    20,
+    "Correct number of messages appear"
+  );
+  is(
+    outputContainer.scrollWidth,
+    outputContainer.clientWidth,
+    "No horizontal overflow"
+  );
+});