content: /*
   * 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 com.datastax.oss.driver.internal.mapper.processor;
  
  import static com.google.testing.compile.CompilationSubject.assertThat;
  
  import com.datastax.oss.driver.shaded.guava.common.collect.ImmutableList;
  import com.google.testing.compile.Compilation;
  import com.google.testing.compile.Compiler;
  import com.squareup.javapoet.JavaFile;
  import com.squareup.javapoet.TypeSpec;
  import edu.umd.cs.findbugs.annotations.NonNull;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import javax.tools.JavaFileObject;
  
  public abstract class MapperProcessorTest {
  
    /**
     * Launches an in-process execution of javac with {@link MapperProcessor} enabled.
     *
     * @param packageName the package of the types to process. Note that it is currently not possible
     *     to process multiple packages (and it's unlikely to be needed in unit tests).
     * @param options the compiler options (use to pass -A options to the processor).
     * @param typeSpecs the contents of the classes or interfaces to process.
     */
    protected Compilation compileWithMapperProcessor(
        String packageName, Iterable<?> options, TypeSpec... typeSpecs) {
      List<JavaFileObject> files = new ArrayList<>();
      for (TypeSpec typeSpec : typeSpecs) {
        files.add(JavaFile.builder(packageName, typeSpec).build().toJavaFileObject());
      }
      return Compiler.javac()
          .withProcessors(getMapperProcessor())
          .withOptions(options)
          .compile(files);
    }
  
    @NonNull
    protected MapperProcessor getMapperProcessor() {
      return new MapperProcessor();
    }
  
    /**
     * Launches an in-process execution of javac with {@link MapperProcessor} enabled, and <b>custom
     * result types disabled</b>.
     *
     * @param packageName the package of the types to process. Note that it is currently not possible
     *     to process multiple packages (and it's unlikely to be needed in unit tests).
     * @param typeSpecs the contents of the classes or interfaces to process.
     */
    protected Compilation compileWithMapperProcessor(String packageName, TypeSpec... typeSpecs) {
      return compileWithMapperProcessor(
          packageName,
          ImmutableList.of("-Acom.datastax.oss.driver.mapper.customResults.enabled=false"),
          typeSpecs);
    }
  
    protected void should_fail_with_expected_error(
        String expectedError, String packageName, TypeSpec... typeSpecs) {
      Compilation compilation = compileWithMapperProcessor(packageName, typeSpecs);
      assertThat(compilation).hadErrorContaining(expectedError);
    }
  
    protected void should_succeed_with_expected_warning(
        String expectedWarning, String packageName, TypeSpec... typeSpecs) {
      Compilation compilation = compileWithMapperProcessor(packageName, typeSpecs);
      assertThat(compilation).hadWarningContaining(expectedWarning);
    }
  
    protected void should_succeed_without_warnings(String packageName, TypeSpec... typeSpecs) {
      Compilation compilation =
          compileWithMapperProcessor(packageName, Collections.emptyList(), typeSpecs);
      assertThat(compilation).succeededWithoutWarnings();
    }
  }
  