diff options
Diffstat (limited to 'chromium/third_party/libjingle/source/talk/base/rollingaccumulator_unittest.cc')
| -rw-r--r-- | chromium/third_party/libjingle/source/talk/base/rollingaccumulator_unittest.cc | 63 |
1 files changed, 48 insertions, 15 deletions
diff --git a/chromium/third_party/libjingle/source/talk/base/rollingaccumulator_unittest.cc b/chromium/third_party/libjingle/source/talk/base/rollingaccumulator_unittest.cc index c2831033645..e6d0ea2b750 100644 --- a/chromium/third_party/libjingle/source/talk/base/rollingaccumulator_unittest.cc +++ b/chromium/third_party/libjingle/source/talk/base/rollingaccumulator_unittest.cc @@ -40,8 +40,10 @@ TEST(RollingAccumulatorTest, ZeroSamples) { RollingAccumulator<int> accum(10); EXPECT_EQ(0U, accum.count()); - EXPECT_EQ(0, accum.ComputeMean()); - EXPECT_EQ(0, accum.ComputeVariance()); + EXPECT_DOUBLE_EQ(0.0, accum.ComputeMean()); + EXPECT_DOUBLE_EQ(0.0, accum.ComputeVariance()); + EXPECT_EQ(0, accum.ComputeMin()); + EXPECT_EQ(0, accum.ComputeMax()); } TEST(RollingAccumulatorTest, SomeSamples) { @@ -52,9 +54,11 @@ TEST(RollingAccumulatorTest, SomeSamples) { EXPECT_EQ(4U, accum.count()); EXPECT_EQ(6, accum.ComputeSum()); - EXPECT_EQ(1, accum.ComputeMean()); - EXPECT_EQ(2, accum.ComputeWeightedMean(kLearningRate)); - EXPECT_EQ(1, accum.ComputeVariance()); + EXPECT_DOUBLE_EQ(1.5, accum.ComputeMean()); + EXPECT_NEAR(2.26666, accum.ComputeWeightedMean(kLearningRate), 0.01); + EXPECT_DOUBLE_EQ(1.25, accum.ComputeVariance()); + EXPECT_EQ(0, accum.ComputeMin()); + EXPECT_EQ(3, accum.ComputeMax()); } TEST(RollingAccumulatorTest, RollingSamples) { @@ -65,9 +69,36 @@ TEST(RollingAccumulatorTest, RollingSamples) { EXPECT_EQ(10U, accum.count()); EXPECT_EQ(65, accum.ComputeSum()); - EXPECT_EQ(6, accum.ComputeMean()); - EXPECT_EQ(10, accum.ComputeWeightedMean(kLearningRate)); - EXPECT_NEAR(9, accum.ComputeVariance(), 1); + EXPECT_DOUBLE_EQ(6.5, accum.ComputeMean()); + EXPECT_NEAR(10.0, accum.ComputeWeightedMean(kLearningRate), 0.01); + EXPECT_NEAR(9.0, accum.ComputeVariance(), 1.0); + EXPECT_EQ(2, accum.ComputeMin()); + EXPECT_EQ(11, accum.ComputeMax()); +} + +TEST(RollingAccumulatorTest, ResetSamples) { + RollingAccumulator<int> accum(10); + + for (int i = 0; i < 10; ++i) { + accum.AddSample(100); + } + EXPECT_EQ(10U, accum.count()); + EXPECT_DOUBLE_EQ(100.0, accum.ComputeMean()); + EXPECT_EQ(100, accum.ComputeMin()); + EXPECT_EQ(100, accum.ComputeMax()); + + accum.Reset(); + EXPECT_EQ(0U, accum.count()); + + for (int i = 0; i < 5; ++i) { + accum.AddSample(i); + } + + EXPECT_EQ(5U, accum.count()); + EXPECT_EQ(10, accum.ComputeSum()); + EXPECT_DOUBLE_EQ(2.0, accum.ComputeMean()); + EXPECT_EQ(0, accum.ComputeMin()); + EXPECT_EQ(4, accum.ComputeMax()); } TEST(RollingAccumulatorTest, RollingSamplesDouble) { @@ -81,22 +112,24 @@ TEST(RollingAccumulatorTest, RollingSamplesDouble) { EXPECT_DOUBLE_EQ(87.5, accum.ComputeMean()); EXPECT_NEAR(105.049, accum.ComputeWeightedMean(kLearningRate), 0.1); EXPECT_NEAR(229.166667, accum.ComputeVariance(), 25); + EXPECT_DOUBLE_EQ(65.0, accum.ComputeMin()); + EXPECT_DOUBLE_EQ(110.0, accum.ComputeMax()); } TEST(RollingAccumulatorTest, ComputeWeightedMeanCornerCases) { RollingAccumulator<int> accum(10); - EXPECT_EQ(0, accum.ComputeWeightedMean(kLearningRate)); - EXPECT_EQ(0, accum.ComputeWeightedMean(0.0)); - EXPECT_EQ(0, accum.ComputeWeightedMean(1.1)); + EXPECT_DOUBLE_EQ(0.0, accum.ComputeWeightedMean(kLearningRate)); + EXPECT_DOUBLE_EQ(0.0, accum.ComputeWeightedMean(0.0)); + EXPECT_DOUBLE_EQ(0.0, accum.ComputeWeightedMean(1.1)); for (int i = 0; i < 8; ++i) { accum.AddSample(i); } - EXPECT_EQ(3, accum.ComputeMean()); - EXPECT_EQ(3, accum.ComputeWeightedMean(0)); - EXPECT_EQ(3, accum.ComputeWeightedMean(1.1)); - EXPECT_EQ(6, accum.ComputeWeightedMean(kLearningRate)); + EXPECT_DOUBLE_EQ(3.5, accum.ComputeMean()); + EXPECT_DOUBLE_EQ(3.5, accum.ComputeWeightedMean(0)); + EXPECT_DOUBLE_EQ(3.5, accum.ComputeWeightedMean(1.1)); + EXPECT_NEAR(6.0, accum.ComputeWeightedMean(kLearningRate), 0.1); } } // namespace talk_base |