| // Copyright 2016 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.testing.junit.runner.junit4; |
| |
| import com.google.errorprone.annotations.CanIgnoreReturnValue; |
| import com.google.testing.junit.runner.internal.junit4.CancellableRequestFactory; |
| import com.google.testing.junit.runner.model.AntXmlResultWriter; |
| import com.google.testing.junit.runner.model.TestSuiteModel; |
| import com.google.testing.junit.runner.model.XmlResultWriter; |
| import com.google.testing.junit.runner.sharding.ShardingEnvironment; |
| import com.google.testing.junit.runner.sharding.ShardingFilters; |
| import com.google.testing.junit.runner.util.MemoizingSupplier; |
| import java.io.PrintStream; |
| import java.util.Collections; |
| import java.util.Set; |
| import java.util.function.Supplier; |
| import org.junit.runner.Request; |
| import org.junit.runner.notification.RunListener; |
| |
| /** |
| * Utility class to create a JUnit4Runner instance from a {@link Builder}. All required dependencies |
| * are being injected automatically. |
| */ |
| public final class JUnit4Bazel { |
| |
| private Request request; |
| |
| private CancellableRequestFactory cancellableRequestFactory; |
| |
| private JUnit4TestModelBuilder jUnit4TestModelBuilder; |
| |
| private Supplier<TestSuiteModel> testSuiteModelSupplier; |
| |
| private PrintStream stdoutStream; |
| |
| private JUnit4Config config; |
| |
| private Set<RunListener> setOfRunListeners; |
| |
| JUnit4Bazel(Builder<?> builder) { |
| initialize(checkNotNull(builder)); |
| } |
| |
| public static Builder<?> builder() { |
| return new Builder<>(); |
| } |
| |
| private void initialize(final Builder<?> builder) { |
| Class<?> topLevelSuite = builder.suiteClass; |
| this.request = JUnit4RunnerBaseModule.provideRequest(topLevelSuite); |
| this.cancellableRequestFactory = builder.module.cancellableRequestFactory(); |
| String topLevelSuiteName = topLevelSuite.getCanonicalName(); |
| ShardingEnvironment shardingEnvironment = builder.module.shardingEnvironment(); |
| ShardingFilters shardingFilters = builder.module.shardingFilters(shardingEnvironment); |
| XmlResultWriter resultWriter = new AntXmlResultWriter(); |
| TestSuiteModel.Builder builder1 = |
| new TestSuiteModel.Builder( |
| builder.module.clock(), shardingFilters, shardingEnvironment, resultWriter); |
| this.jUnit4TestModelBuilder = new JUnit4TestModelBuilder(request, topLevelSuiteName, builder1); |
| this.testSuiteModelSupplier = new MemoizingSupplier<>(() -> jUnit4TestModelBuilder.get()); |
| this.stdoutStream = builder.module.stdout(); |
| this.config = builder.module.config(); |
| this.setOfRunListeners = |
| builder.module.setOfRunListeners(config, testSuiteModelSupplier, cancellableRequestFactory); |
| } |
| |
| public JUnit4Runner runner() { |
| return new JUnit4Runner( |
| request, |
| cancellableRequestFactory, |
| testSuiteModelSupplier, |
| stdoutStream, |
| config, |
| setOfRunListeners, |
| Collections.emptySet()); |
| } |
| |
| /** A builder for instantiating {@link JUnit4Bazel}. */ |
| public static class Builder<B extends Builder<B>> { |
| private Class<?> suiteClass; |
| private JUnit4InstanceModules.Config config; |
| protected JUnit4RunnerModule module; |
| |
| public JUnit4Bazel build() { |
| if (suiteClass == null) { |
| throw new IllegalStateException("suiteClass must be set"); |
| } |
| if (module == null) { |
| this.module = createModule(); |
| } |
| return new JUnit4Bazel(this); |
| } |
| |
| private JUnit4RunnerModule createModule() { |
| if (config == null) { |
| throw new IllegalStateException( |
| JUnit4InstanceModules.Config.class.getCanonicalName() + " must be set"); |
| } |
| return new JUnit4RunnerModule(config.options()); |
| } |
| |
| @CanIgnoreReturnValue |
| @SuppressWarnings("unchecked") |
| public B suiteClass(Class<?> suiteClass) { |
| this.suiteClass = checkNotNull(suiteClass); |
| return (B) this; |
| } |
| |
| @CanIgnoreReturnValue |
| @SuppressWarnings("unchecked") |
| public B config(JUnit4InstanceModules.Config config) { |
| this.config = checkNotNull(config); |
| return (B) this; |
| } |
| } |
| |
| private static <T> T checkNotNull(T reference) { |
| if (reference == null) { |
| throw new NullPointerException(); |
| } |
| return reference; |
| } |
| } |