1 // Copyright 2020 The Chromium Authors 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "components/metrics/entropy_state_provider.h" 6 7 #include "components/metrics/metrics_pref_names.h" 8 #include "components/metrics/metrics_service.h" 9 #include "components/prefs/testing_pref_service.h" 10 #include "testing/gtest/include/gtest/gtest.h" 11 #include "third_party/metrics_proto/system_profile.pb.h" 12 13 namespace metrics { 14 15 class EntropyStateProviderTest : public testing::Test { 16 public: EntropyStateProviderTest()17 EntropyStateProviderTest() { 18 MetricsService::RegisterPrefs(prefs_.registry()); 19 } 20 21 EntropyStateProviderTest(const EntropyStateProviderTest&) = delete; 22 EntropyStateProviderTest& operator=(const EntropyStateProviderTest&) = delete; 23 24 protected: 25 TestingPrefServiceSimple prefs_; 26 }; 27 TEST_F(EntropyStateProviderTest,PopulateAllLowEntropySources)28TEST_F(EntropyStateProviderTest, PopulateAllLowEntropySources) { 29 const int new_low_source = 1234; 30 const int old_low_source = 5678; 31 const int pseudo_low_source = 4321; 32 prefs_.SetInteger(prefs::kMetricsLowEntropySource, new_low_source); 33 prefs_.SetInteger(prefs::kMetricsOldLowEntropySource, old_low_source); 34 prefs_.SetInteger(prefs::kMetricsPseudoLowEntropySource, pseudo_low_source); 35 36 EntropyStateProvider provider(&prefs_); 37 SystemProfileProto system_profile; 38 39 provider.ProvideSystemProfileMetrics(&system_profile); 40 41 EXPECT_EQ(new_low_source, system_profile.low_entropy_source()); 42 EXPECT_EQ(old_low_source, system_profile.old_low_entropy_source()); 43 EXPECT_EQ(pseudo_low_source, system_profile.pseudo_low_entropy_source()); 44 } 45 46 } // namespace metrics 47