[Autofill] Add upstreaming UKM

components/autofill/core/browser/autofill_ukm_unittest.cc

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/autofill/core/browser/autofill_ukm.h"
+
+#include "components/autofill/core/browser/autofill_metrics.h"
+#include "components/ukm/test_ukm_service.h"
+#include "components/ukm/ukm_source.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+namespace autofill {
+
+namespace {
+
+class AutofillUkmTest : public ::testing::Test {
+ protected:
+  AutofillUkmTest(){};
+
+  void SetUp() override;
+
+  void TearDown() override;
+
+  ukm::TestUkmService* GetTestUkmService() {
+    return ukm_service_test_harness_.test_ukm_service();
+  }
+
+  std::unique_ptr<AutofillUkm> autofill_ukm_;
+
+ private:
+  ukm::UkmServiceTestingHarness ukm_service_test_harness_;
+
+  DISALLOW_COPY_AND_ASSIGN(AutofillUkmTest);
+};
+
+void AutofillUkmTest::SetUp() {
+  autofill_ukm_.reset(new AutofillUkm(GetTestUkmService()));

[Mathieu, 2017/03/08 22:33:49]

you can inline SetUp and TearDown above

+}
+
+void AutofillUkmTest::TearDown() {
+  autofill_ukm_.reset();
+}
+
+}  // namespace
+
+// Tests that logging a card upload decision UKM works as expected.
+TEST_F(AutofillUkmTest, RecordCardUploadDecisionMetric) {
+  GURL url("https://www.google.com");
+  autofill_ukm_->SetCardUploadDecisionMetricUrl(url);
+
+  ASSERT_EQ(0U, GetTestUkmService()->sources_count());
+
+  autofill_ukm_->LogCardUploadDecisionMetric(
+      AutofillMetrics::UPLOAD_NOT_OFFERED_NO_CVC);
+
+  ASSERT_EQ(1U, GetTestUkmService()->sources_count());
+  EXPECT_EQ(url.spec(), GetTestUkmService()->GetSource(0)->url().spec());
+}
+
+// Tests that only the most recent URL is used when logging the card upload
+// decision UKM.
+TEST_F(AutofillUkmTest, RecordCardUploadDecisionMetric_ChangeUrl) {
+  GURL url1("https://www.google.com");
+  GURL url2("https://www.gmail.com");
+  autofill_ukm_->SetCardUploadDecisionMetricUrl(url1);
+  autofill_ukm_->SetCardUploadDecisionMetricUrl(url2);
+
+  autofill_ukm_->LogCardUploadDecisionMetric(
+      AutofillMetrics::UPLOAD_NOT_OFFERED_NO_CVC);
+
+  ASSERT_EQ(1U, GetTestUkmService()->sources_count());
+  EXPECT_EQ(url2.spec(), GetTestUkmService()->GetSource(0)->url().spec());
+}
+
+// Tests that no card upload decision UKM is logged when the URL is not set.
+TEST_F(AutofillUkmTest, RecordCardUploadDecisionMetric_NoUrl) {
+  autofill_ukm_->LogCardUploadDecisionMetric(
+      AutofillMetrics::UPLOAD_NOT_OFFERED_NO_CVC);
+
+  ASSERT_EQ(0U, GetTestUkmService()->sources_count());
+}
+
+// Tests that no card upload decision UKM is set if the decision is not valid.
+TEST_F(AutofillUkmTest, RecordCardUploadDecisionMetric_InvalidDecision) {
+  GURL url("https://www.google.com");
+  autofill_ukm_->SetCardUploadDecisionMetricUrl(url);
+  autofill_ukm_->LogCardUploadDecisionMetric(
+      AutofillMetrics::NUM_CARD_UPLOAD_DECISION_METRICS);
+
+  ASSERT_EQ(0U, GetTestUkmService()->sources_count());
+}
+
+}  // namespace autofill