1 files changed, 84 insertions, 0 deletions
diff --git a/devtools/client/framework/test/browser_toolbox_error_count_reset_on_navigation.js b/devtools/client/framework/test/browser_toolbox_error_count_reset_on_navigation.js
new file mode 100644
index 0000000000..53f5068655
--- /dev/null
+++ b/devtools/client/framework/test/browser_toolbox_error_count_reset_on_navigation.js
@@ -0,0 +1,84 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+// Test for error count in toolbar when navigating and webconsole isn't enabled
+const TEST_URI = `http://example.org/document-builder.sjs?html=<meta charset=utf8></meta>
+<script>
+  console.error("Cache Error1");
+  console.exception(false, "Cache Exception");
+  console.warn("Cache warning");
+  console.assert(false, "Cache assert");
+  cache.unknown.access
+</script>`;
+
+const { Toolbox } = require("resource://devtools/client/framework/toolbox.js");
+
+add_task(async function () {
+  // Disable bfcache for Fission for now.
+  // If Fission is disabled, the pref is no-op.
+  await SpecialPowers.pushPrefEnv({
+    set: [["fission.bfcacheInParent", false]],
+  });
+
+  // Make sure we start the test with the split console disabled.
+  // ⚠️ In this test it's important to _not_ enable the console.
+  await pushPref("devtools.toolbox.splitconsoleEnabled", false);
+  const tab = await addTab(TEST_URI);
+
+  const toolbox = await openToolboxForTab(
+    tab,
+    "inspector",
+    Toolbox.HostType.BOTTOM
+  );
+
+  info("Check for cached errors");
+  // (console.error + console.exception + console.assert + error)
+  const expectedErrorCount = 4;
+
+  await waitFor(() => getErrorIcon(toolbox));
+  is(
+    getErrorIcon(toolbox).getAttribute("title"),
+    "Show Split Console",
+    "Icon has expected title"
+  );
+  is(
+    getErrorIconCount(toolbox),
+    expectedErrorCount,
+    "Correct count is displayed"
+  );
+
+  info("Add another error so we have a different count");
+  ContentTask.spawn(tab.linkedBrowser, null, function () {
+    content.console.error("Live Error1");
+  });
+
+  const newExpectedErrorCount = expectedErrorCount + 1;
+  await waitFor(() => getErrorIconCount(toolbox) === newExpectedErrorCount);
+
+  info(
+    "Reload the page and check that the error icon has the expected content"
+  );
+  await reloadBrowser();
+
+  await waitFor(
+    () => getErrorIconCount(toolbox) === expectedErrorCount,
+    "Error count is cleared on navigation and then populated with the expected number of errors"
+  );
+  ok(true, "Correct count is displayed");
+
+  info(
+    "Navigate to an error-less page and check that the error icon is hidden"
+  );
+  await navigateTo(`data:text/html;charset=utf8,No errors`);
+  await waitFor(
+    () => !getErrorIcon(toolbox),
+    "Error count is cleared on navigation"
+  );
+  ok(
+    true,
+    "The error icon was hidden when navigating to a new page without errors"
+  );
+
+  toolbox.destroy();
+});