RAPPOR implementation

components/rappor/rappor_service_unittest.cc

+// Copyright (c) 2013 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/rappor/rappor_service.h"
+
+#include <string>
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace rappor {
+
+class RapporServiceTest : public testing::Test {
+ public:
+  RapporMetricsProto* LogRapporMetrics(RapporService* rappor_service) {
+    rappor_service->LogRapporMetrics();
+    return &(rappor_service->rappor_metrics_proto_);

[Alexei Svitkine (slow), 2014/01/09 19:23:09]

Nit: No need for ()'s.

[Steven Holte, 2014/01/09 22:03:01]

Done.

+  }
+};
+
+TEST_F(RapporServiceTest, RapporMetrics) {
+  const RapporParameters kTestRapporParameters = {
+      "MyRappor", 16 /* Bloom filter size bytes */,
+      4 /* Bloom filter hash count */,
+      PROBABILITY_75 /* Fake data probability */,
+      PROBABILITY_50 /* Fake one probability */,
+      PROBABILITY_75 /* One coin probability */,
+      PROBABILITY_50 /* Zero coin probability */
+  };
+
+  RapporService rappor_service;
+  std::vector<std::string> samples;
+  samples.push_back("foo");
+  rappor_service.RecordSamples(kTestRapporParameters, samples);
+  std::vector<std::string> samples2;
+  samples2.push_back("bar");
+  rappor_service.RecordSamples(kTestRapporParameters, samples2);
+
+  RapporMetricsProto* proto = LogRapporMetrics(&rappor_service);
+  EXPECT_EQ(1, proto->rappor_size());
+
+  const RapporMetricsProto::RapporMetric& rappor_proto = proto->rappor(0);
+  EXPECT_TRUE(rappor_proto.name_hash());
+  EXPECT_EQ(16u, rappor_proto.bits().size());
+}
+
+}  // namespace rappor