1 files changed, 90 insertions, 0 deletions
diff --git a/services/settings/test/unit/test_remote_settings_utils_telemetry.js b/services/settings/test/unit/test_remote_settings_utils_telemetry.js
new file mode 100644
index 0000000000..f12b0d7f9a
--- /dev/null
+++ b/services/settings/test/unit/test_remote_settings_utils_telemetry.js
@@ -0,0 +1,90 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+/* import-globals-from ../../../common/tests/unit/head_helpers.js */
+
+const { TelemetryController } = ChromeUtils.importESModule(
+  "resource://gre/modules/TelemetryController.sys.mjs"
+);
+const { TelemetryTestUtils } = ChromeUtils.importESModule(
+  "resource://testing-common/TelemetryTestUtils.sys.mjs"
+);
+const { Utils } = ChromeUtils.importESModule(
+  "resource://services-settings/Utils.sys.mjs"
+);
+
+const server = new HttpServer();
+server.start(-1);
+registerCleanupFunction(() => server.stop(() => {}));
+const SERVER_BASE_URL = `http://localhost:${server.identity.primaryPort}`;
+
+const proxyServer = new HttpServer();
+proxyServer.start(-1);
+const PROXY_PORT = proxyServer.identity.primaryPort;
+proxyServer.stop();
+
+server.registerPathHandler("/destination", (request, response) => {
+  response.setStatusLine(null, 412);
+});
+
+async function assertTelemetryEvents(expectedEvents) {
+  await TelemetryTestUtils.assertEvents(expectedEvents, {
+    category: "service_request",
+    method: "bypass",
+  });
+}
+
+add_task(async function setup() {
+  await TelemetryController.testSetup();
+});
+
+add_task(async function test_telemetry() {
+  const DESTINATION_URL = `${SERVER_BASE_URL}/destination`;
+
+  {
+    let res = await Utils.fetch(DESTINATION_URL);
+    Assert.equal(res.status, 412, "fetch without proxy succeeded");
+  }
+  await assertTelemetryEvents([]);
+
+  Services.prefs.setIntPref("network.proxy.type", 1);
+  Services.prefs.setStringPref("network.proxy.http", "127.0.0.1");
+  Services.prefs.setIntPref("network.proxy.http_port", PROXY_PORT);
+  Services.prefs.setBoolPref("network.proxy.allow_hijacking_localhost", true);
+
+  {
+    let res = await Utils.fetch(DESTINATION_URL);
+    Assert.equal(res.status, 412, "fetch with broken proxy succeeded");
+  }
+  // Note: failover handled by HttpChannel, hence no failover here.
+  await assertTelemetryEvents([]);
+
+  // Disable HttpChannel failover in favor of Utils.fetch's implementation.
+  Services.prefs.setBoolPref("network.proxy.failover_direct", false);
+  {
+    let res = await Utils.fetch(DESTINATION_URL);
+    Assert.equal(res.status, 412, "fetch succeeded with bypassProxy feature");
+  }
+  await assertTelemetryEvents([
+    {
+      category: "service_request",
+      method: "bypass",
+      object: "proxy_info",
+      value: "remote-settings",
+      extra: {
+        source: "prefs",
+        type: "manual",
+      },
+    },
+  ]);
+
+  Services.prefs.setBoolPref("network.proxy.allow_bypass", false);
+  await Assert.rejects(
+    Utils.fetch(DESTINATION_URL),
+    /NetworkError/,
+    "Request without failover fails"
+  );
+  await assertTelemetryEvents([]);
+});