Replace incident type handlers with implementations of Incident.

chrome/browser/safe_browsing/incident_reporting/tracked_preference_incident_unittest.cc

+// Copyright 2015 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 "chrome/browser/safe_browsing/incident_reporting/tracked_preference_incident.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "chrome/common/safe_browsing/csd.pb.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace safe_browsing {
+
+namespace {
+
+scoped_ptr<Incident> MakeIncident(bool changed) {
+  scoped_ptr<ClientIncidentReport_IncidentData_TrackedPreferenceIncident>
+      incident(new ClientIncidentReport_IncidentData_TrackedPreferenceIncident);
+
+  incident->set_path("foo");
+  incident->set_atomic_value("bar");
+  incident->set_value_state(
+      changed
+          ? ClientIncidentReport_IncidentData_TrackedPreferenceIncident_ValueState_CHANGED
+          : ClientIncidentReport_IncidentData_TrackedPreferenceIncident_ValueState_CLEARED);
+  return make_scoped_ptr(new TrackedPreferenceIncident(incident.Pass()));
+}
+
+}  // namespace
+
+TEST(TrackedPreferenceIncident, GetType) {
+  ASSERT_EQ(IncidentType::TRACKED_PREFERENCE, MakeIncident(false)->GetType());
+}
+
+// Tests that GetKey returns the preference path.
+TEST(TrackedPreferenceIncident, KeyIsPath) {
+  ASSERT_EQ(std::string("foo"), MakeIncident(false)->GetKey());
+}
+
+// Tests that GetDigest returns the same value for the same incident.
+TEST(TrackedPreferenceIncident, SameIncidentSameDigest) {
+  ASSERT_EQ(MakeIncident(false)->ComputeDigest(),
+            MakeIncident(false)->ComputeDigest());
+}
+
+// Tests that GetDigest returns a different value for different incidents.
+TEST(TrackedPreferenceIncident, DifferentIncidentDifferentDigest) {
+  ASSERT_NE(MakeIncident(false)->ComputeDigest(),
+            MakeIncident(true)->ComputeDigest());
+}
+
+}  // namespace safe_browsing