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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
| 5 #include <stddef.h> |
| 6 #include <stdint.h> |
| 7 |
| 8 #include "base/macros.h" |
5 #include "remoting/base/running_average.h" | 9 #include "remoting/base/running_average.h" |
6 #include "testing/gtest/include/gtest/gtest.h" | 10 #include "testing/gtest/include/gtest/gtest.h" |
7 | 11 |
8 namespace remoting { | 12 namespace remoting { |
9 | 13 |
10 static const int64 kTestValues[] = { 10, 20, 30, 10, 25, 16, 15 }; | 14 static const int64_t kTestValues[] = { 10, 20, 30, 10, 25, 16, 15 }; |
11 | 15 |
12 // Average across a single element, i.e. just return the most recent. | 16 // Average across a single element, i.e. just return the most recent. |
13 TEST(RunningAverageTest, OneElementWindow) { | 17 TEST(RunningAverageTest, OneElementWindow) { |
14 RunningAverage running_average(1); | 18 RunningAverage running_average(1); |
15 EXPECT_EQ(0, running_average.Average()); | 19 EXPECT_EQ(0, running_average.Average()); |
16 | 20 |
17 for (size_t i = 0; i < arraysize(kTestValues); ++i) { | 21 for (size_t i = 0; i < arraysize(kTestValues); ++i) { |
18 running_average.Record(kTestValues[i]); | 22 running_average.Record(kTestValues[i]); |
19 EXPECT_EQ(static_cast<double>(kTestValues[i]), running_average.Average()); | 23 EXPECT_EQ(static_cast<double>(kTestValues[i]), running_average.Average()); |
20 } | 24 } |
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47 double expected = 0.0; | 51 double expected = 0.0; |
48 for (size_t j = 0; j <= i; ++j) | 52 for (size_t j = 0; j <= i; ++j) |
49 expected += kTestValues[j]; | 53 expected += kTestValues[j]; |
50 expected /= i + 1; | 54 expected /= i + 1; |
51 | 55 |
52 EXPECT_EQ(expected, running_average.Average()); | 56 EXPECT_EQ(expected, running_average.Average()); |
53 } | 57 } |
54 } | 58 } |
55 | 59 |
56 } // namespace remoting | 60 } // namespace remoting |
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