NimbusFeatures_RecordExposure.cpp

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "gtest/gtest.h"

#include "mozilla/Preferences.h"

#include "mozilla/browser/NimbusFeatures.h"

#include "js/Array.h"

#include "js/PropertyAndElement.h"

#include "js/TypeDecls.h"

#include "TelemetryFixture.h"

#include "TelemetryTestHelpers.h"

using namespace mozilla;

using namespace TelemetryTestHelpers;

class NimbusTelemetryFixture : public TelemetryTestFixture {};

TEST_F(NimbusTelemetryFixture, NimbusFeaturesTelemetry) {

  constexpr auto prefName =

      "nimbus.syncdatastore.testPlatformExposureFeature"_ns;

  constexpr auto prefValue =

      R"({"slug":"experiment-slug","branch":{"slug":"branch-slug"}})";

  AutoJSContextWithGlobal cx(mCleanGlobal);

  (void)mTelemetry->ClearEvents();

  ASSERT_EQ(

      NimbusFeatures::RecordExposureEvent("testPlatformExposureFeature"_ns),

      NS_ERROR_UNEXPECTED)

      << "Should fail because not enrolled in experiment";

  // Set the experiment info for `foo`

  Preferences::SetCString(prefName.get(), prefValue);

  ASSERT_EQ(

      NimbusFeatures::RecordExposureEvent("testPlatformExposureFeature"_ns),

      NS_OK)

      << "Should work for the 2nd call";

  ASSERT_EQ(NimbusFeatures::RecordExposureEvent(

                "testPlatformExposureFeature"_ns, true),

            NS_ERROR_ABORT)

      << "Should abort because we've sent exposure and aOnce is true";

  ASSERT_EQ(Preferences::ClearUser(prefName.get()), NS_OK);

  ASSERT_EQ(

      NimbusFeatures::RecordExposureEvent("testPlatformExposureFeature"_ns),

      NS_ERROR_UNEXPECTED)

      << "Should fail because we longer have an experiment";

  JS::Rooted<JS::Value> eventsSnapshot(cx.GetJSContext());

  GetEventSnapshot(cx.GetJSContext(), &eventsSnapshot);

  ASSERT_TRUE(EventPresent(cx.GetJSContext(), eventsSnapshot, "normandy"_ns,

                           "expose"_ns, "nimbus_experiment"_ns));