| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.metron.common.performance; |
| |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| |
| import static org.hamcrest.CoreMatchers.equalTo; |
| import static org.hamcrest.MatcherAssert.assertThat; |
| |
| public class TimingTest { |
| |
| private Timing timing; |
| |
| @BeforeEach |
| public void setup() { |
| timing = new Timing(); |
| } |
| |
| @Test |
| public void provides_monotonically_increasing_times_for_single_marker() |
| throws InterruptedException { |
| timing.mark("mark1"); |
| long tlast = 0; |
| for (int i = 0; i < 10; i++) { |
| tlast = timing.getElapsed("mark1"); |
| Thread.sleep(10); |
| assertThat(timing.getElapsed("mark1") > tlast, equalTo(true)); |
| } |
| } |
| |
| @Test |
| public void provides_monotonically_increasing_times_for_multiple_markers() |
| throws InterruptedException { |
| timing.mark("mark1"); |
| timing.mark("mark2"); |
| long tlast1 = 0; |
| long tlast2 = 0; |
| for (int i = 0; i < 10; i++) { |
| tlast1 = timing.getElapsed("mark1"); |
| tlast2 = timing.getElapsed("mark2"); |
| Thread.sleep(10); |
| assertThat(timing.getElapsed("mark1") > tlast1, equalTo(true)); |
| assertThat(timing.getElapsed("mark2") > tlast2, equalTo(true)); |
| } |
| } |
| |
| @Test |
| public void elapsed_time_on_nonexistent_marker_is_zero() throws InterruptedException { |
| timing.mark("mark1"); |
| long tlast1 = 0; |
| for (int i = 0; i < 10; i++) { |
| tlast1 = timing.getElapsed("mark1"); |
| Thread.sleep(10); |
| assertThat(timing.getElapsed("mark1") > tlast1, equalTo(true)); |
| assertThat(timing.getElapsed("mark2"), equalTo(0L)); |
| } |
| } |
| |
| @Test |
| public void marking_again_resets_timing() throws InterruptedException { |
| timing.mark("mark1"); |
| long tlast1 = 0; |
| for (int i = 0; i < 5; i++) { |
| Thread.sleep(10); |
| tlast1 = timing.getElapsed("mark1"); |
| timing.mark("mark1"); |
| assertThat(timing.getElapsed("mark1") < tlast1, equalTo(true)); |
| } |
| } |
| |
| @Test |
| public void exists_checks_mark_existence() { |
| timing.mark("mark1"); |
| assertThat(timing.exists("mark1"), equalTo(true)); |
| assertThat(timing.exists("mark2"), equalTo(false)); |
| assertThat(timing.exists("mark3"), equalTo(false)); |
| } |
| |
| } |