RAPPOR implementation

components/rappor/rappor_recorder_unittest.cc

+// Copyright (c) 2012 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_recorder.h"
+#include "components/rappor/rappor.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace rappor {
+
+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 */
+};
+
+const RapporParameters kTestRappor2Parameters = {
+    "MyRappor2", 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 */
+};
+
+TEST(RapporRecorderTest, TestRecorder) {
+  RapporRecorder recorder;
+
+  // Recording an empty list of samples.
+  std::vector<std::string> samples;
+  recorder.RecordSamples(&kTestRapporParameters, samples);
+  recorder.RecordSamples(&kTestRappor2Parameters, samples);
+  recorder.RecordSamples(&kTestRapporParameters, samples);
+
+  RapporRecorder::Rappors rappors;
+  recorder.CollectRappors(&rappors);
+  ASSERT_EQ(rappors.size(), 2u);
+
+  // Collecting rappors should clear the recorder.
+  RapporRecorder::Rappors rappors_cleared;
+  recorder.CollectRappors(&rappors_cleared);
+  ASSERT_EQ(rappors_cleared.size(), 0u);
+
+  RapporRecorder::DeleteRappors(&rappors);
+  RapporRecorder::DeleteRappors(&rappors_cleared);
+}
+
+}  // namespace rappor