| /** |
| * 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.ambari.metrics.core.timeline; |
| |
| import org.apache.ambari.metrics.core.timeline.aggregators.Function; |
| import org.junit.Ignore; |
| import org.junit.Test; |
| |
| import static org.apache.ambari.metrics.core.timeline.aggregators.Function.fromMetricName; |
| import static org.apache.ambari.metrics.core.timeline.aggregators.Function.ReadFunction.AVG; |
| import static org.apache.ambari.metrics.core.timeline.aggregators.Function.PostProcessingFunction.RATE; |
| import static org.apache.ambari.metrics.core.timeline.aggregators.Function.PostProcessingFunction.DIFF; |
| import static org.assertj.core.api.Assertions.assertThat; |
| |
| public class FunctionTest { |
| |
| @Test |
| public void testCreation() throws Exception { |
| Function f = fromMetricName("Metric._avg"); |
| assertThat(f).isEqualTo(new Function(AVG, null)); |
| |
| f = fromMetricName("Metric._rate._avg"); |
| assertThat(f).isEqualTo(new Function(AVG, RATE)); |
| |
| f = fromMetricName("bytes_in"); |
| assertThat(f).isEqualTo(Function.DEFAULT_VALUE_FUNCTION); |
| |
| // Rate support without aggregates |
| f = fromMetricName("Metric._rate"); |
| assertThat(f).isEqualTo(new Function(null, RATE)); |
| |
| // Diff support |
| f = fromMetricName("Metric._diff._avg"); |
| assertThat(f).isEqualTo(new Function(AVG, DIFF)); |
| |
| // Diff support without aggregates |
| f = fromMetricName("Metric._diff"); |
| assertThat(f).isEqualTo(new Function(null, DIFF)); |
| |
| } |
| |
| @Ignore // If unknown function: behavior is best effort query without function |
| @Test(expected = Function.FunctionFormatException.class) |
| public void testNotAFunction() throws Exception { |
| fromMetricName("bytes._not._afunction"); |
| } |
| } |