1 files changed, 41 insertions, 0 deletions
diff --git a/toolkit/components/aboutconfig/test/browser/browser_warning.js b/toolkit/components/aboutconfig/test/browser/browser_warning.js
new file mode 100644
index 0000000000..d95e8f49ea
--- /dev/null
+++ b/toolkit/components/aboutconfig/test/browser/browser_warning.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+add_setup(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [["browser.aboutConfig.showWarning", true]],
+  });
+});
+
+add_task(async function test_showWarningNextTime() {
+  for (let test of [
+    { expectWarningPage: true, disableShowWarningNextTime: false },
+    { expectWarningPage: true, disableShowWarningNextTime: true },
+    { expectWarningPage: false },
+  ]) {
+    await AboutConfigTest.withNewTab(
+      async function () {
+        if (test.expectWarningPage) {
+          this.assertWarningPage(true);
+          Assert.ok(
+            this.document.getElementById("showWarningNextTime").checked
+          );
+          if (test.disableShowWarningNextTime) {
+            this.document.getElementById("showWarningNextTime").click();
+          }
+          this.bypassWarningButton.click();
+        }
+
+        // No results are shown after the warning page is dismissed or bypassed.
+        this.assertWarningPage(false);
+        Assert.ok(!this.prefsTable.firstElementChild);
+        Assert.equal(this.document.activeElement, this.searchInput);
+
+        // The show all button should be present and show all results immediately.
+        this.showAll();
+        Assert.ok(this.prefsTable.firstElementChild);
+      },
+      { dontBypassWarning: true }
+    );
+  }
+});