From 2cf23303144969fd66d88dd105b09d17fda989d0 Mon Sep 17 00:00:00 2001 From: twerth Date: Mon, 13 Aug 2018 04:53:15 -0700 Subject: Add new class to create cpu usage time series. RELNOTES: None PiperOrigin-RevId: 208462186 --- .../build/lib/profiler/CpuUsageTimeSeriesTest.java | 79 ++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 src/test/java/com/google/devtools/build/lib/profiler/CpuUsageTimeSeriesTest.java (limited to 'src/test/java/com/google/devtools/build/lib/profiler/CpuUsageTimeSeriesTest.java') diff --git a/src/test/java/com/google/devtools/build/lib/profiler/CpuUsageTimeSeriesTest.java b/src/test/java/com/google/devtools/build/lib/profiler/CpuUsageTimeSeriesTest.java new file mode 100644 index 0000000000..9d375308c9 --- /dev/null +++ b/src/test/java/com/google/devtools/build/lib/profiler/CpuUsageTimeSeriesTest.java @@ -0,0 +1,79 @@ +// Copyright 2018 The Bazel Authors. All rights reserved. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +package com.google.devtools.build.lib.profiler; + +import static com.google.common.truth.Truth.assertThat; + +import java.util.Arrays; +import org.junit.Test; +import org.junit.runner.RunWith; +import org.junit.runners.JUnit4; + +/** Tests for {@link CpuUsageTimeSeries}. */ +@RunWith(JUnit4.class) +public final class CpuUsageTimeSeriesTest { + @Test + public void testAddRange() { + CpuUsageTimeSeries cpuUsageTimeSeries = new CpuUsageTimeSeries(42, 100); + cpuUsageTimeSeries.addRange(42, 142); + cpuUsageTimeSeries.addRange(442, 542); + double[] values = cpuUsageTimeSeries.toDoubleArray(5); + assertThat(values).usingTolerance(1.0e-10).containsExactly(1, 0, 0, 0, 1).inOrder(); + } + + @Test + public void testAddRangeWithValue() { + CpuUsageTimeSeries cpuUsageTimeSeries = new CpuUsageTimeSeries(42, 100); + cpuUsageTimeSeries.addRange(42, 242, 3); + cpuUsageTimeSeries.addRange(442, 542, 0.5); + double[] values = cpuUsageTimeSeries.toDoubleArray(5); + assertThat(values).usingTolerance(1.0e-10).containsExactly(3, 3, 0, 0, .5).inOrder(); + } + + @Test + public void testAddRangeOverlappingWithValue() { + CpuUsageTimeSeries cpuUsageTimeSeries = new CpuUsageTimeSeries(42, 100); + cpuUsageTimeSeries.addRange(42, 242, 3); + cpuUsageTimeSeries.addRange(142, 442, 0.5); + double[] values = cpuUsageTimeSeries.toDoubleArray(5); + assertThat(values).usingTolerance(1.0e-10).containsExactly(3, 3.5, 0.5, 0.5, 0).inOrder(); + } + + @Test + public void testAddRangeFractions() { + CpuUsageTimeSeries cpuUsageTimeSeries = new CpuUsageTimeSeries(42, 100); + cpuUsageTimeSeries.addRange(92, 267); + double[] values = cpuUsageTimeSeries.toDoubleArray(5); + assertThat(values).usingTolerance(1.0e-10).containsExactly(0.5, 1, 0.25, 0, 0).inOrder(); + } + + @Test + public void testAddRangeWithValueFractions() { + CpuUsageTimeSeries cpuUsageTimeSeries = new CpuUsageTimeSeries(42, 100); + cpuUsageTimeSeries.addRange(92, 267, 3); + double[] values = cpuUsageTimeSeries.toDoubleArray(5); + assertThat(values).usingTolerance(1.0e-10).containsExactly(1.5, 3, 0.75, 0, 0).inOrder(); + } + + @Test + public void testResize() { + CpuUsageTimeSeries cpuUsageTimeSeries = new CpuUsageTimeSeries(0, 100); + cpuUsageTimeSeries.addRange(0, 100 * 100 + 1, 42); + double[] values = cpuUsageTimeSeries.toDoubleArray(101); + double[] expected = new double[101]; + Arrays.fill(expected, 0, expected.length - 1, 42); + expected[expected.length - 1] = 0.42; + assertThat(values).usingTolerance(1.0e-10).containsExactly(expected).inOrder(); + } +} -- cgit v1.2.3