| /* |
| * Copyright (C) 2010 Google Inc. |
| * |
| * 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.caliper; |
| |
| import com.google.common.base.Supplier; |
| import java.util.Map; |
| import java.util.Set; |
| import junit.framework.TestCase; |
| |
| public final class CaliperTest extends TestCase { |
| |
| /** |
| * Test we detect and fail when benchmarks don't scale properly. |
| * @throws Exception |
| */ |
| public void testBenchmarkScalesNonLinearly() throws Exception { |
| TimeMeasurer timeMeasurer = new TimeMeasurer(1000, 1000); |
| try { |
| timeMeasurer.run(new NonLinearTimedRunnable()); |
| fail(); |
| } catch (UserException.DoesNotScaleLinearlyException e) { |
| } |
| } |
| |
| private static class NonLinearTimedRunnable extends ConfiguredBenchmark |
| implements Supplier<ConfiguredBenchmark> { |
| private NonLinearTimedRunnable() { |
| super(new NoOpBenchmark()); |
| } |
| |
| @Override public ConfiguredBenchmark get() { |
| return this; |
| } |
| |
| @Override public Object run(int reps) throws Exception { |
| return null; // broken! doesn't loop reps times. |
| } |
| |
| @Override public void close() throws Exception {} |
| } |
| |
| private static class NoOpBenchmark implements Benchmark { |
| @Override public Set<String> parameterNames() { |
| return null; |
| } |
| |
| @Override public Set<String> parameterValues(String parameterName) { |
| return null; |
| } |
| |
| @Override public ConfiguredBenchmark createBenchmark(Map<String, String> parameterValues) { |
| return null; |
| } |
| |
| @Override public Map<String, Integer> getTimeUnitNames() { |
| return null; |
| } |
| |
| @Override public Map<String, Integer> getInstanceUnitNames() { |
| return null; |
| } |
| |
| @Override public Map<String, Integer> getMemoryUnitNames() { |
| return null; |
| } |
| |
| @Override public double nanosToUnits(double nanos) { |
| return 0; |
| } |
| |
| @Override public double instancesToUnits(long instances) { |
| return 0; |
| } |
| |
| @Override public double bytesToUnits(long bytes) { |
| return 0; |
| } |
| } |
| } |