sdks/java/extensions/google-cloud-platform-core/src/test/java/org/apache/beam/sdk/extensions/gcp/GcpCoreApiSurfaceTest.java

/*
 * 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
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 */
package org.apache.beam.sdk.extensions.gcp;

import static org.apache.beam.sdk.util.ApiSurface.classesInPackage;
import static org.apache.beam.sdk.util.ApiSurface.containsOnlyClassesMatching;
import static org.hamcrest.MatcherAssert.assertThat;

import java.util.Set;
import org.apache.beam.sdk.util.ApiSurface;
import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.ImmutableSet;
import org.hamcrest.Matcher;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** API surface verification for Google Cloud Platform core components. */
@RunWith(JUnit4.class)
public class GcpCoreApiSurfaceTest {

  @Test
  public void testGcpCoreApiSurface() throws Exception {
    final Package thisPackage = getClass().getPackage();
    final ClassLoader thisClassLoader = getClass().getClassLoader();
    final ApiSurface apiSurface =
        ApiSurface.ofPackage(thisPackage, thisClassLoader)
            .pruningPattern("org[.]apache[.]beam[.].*Test.*")
            .pruningPattern("org[.]apache[.]beam[.].*IT")
            .pruningPattern("java[.]lang.*")
            .pruningPattern("java[.]util.*");

    @SuppressWarnings("unchecked")
    final Set<Matcher<Class<?>>> allowedClasses =
        ImmutableSet.of(
            classesInPackage("com.google.api.client.googleapis"),
            classesInPackage("com.google.api.client.http"),
            classesInPackage("com.google.api.client.json"),
            classesInPackage("com.google.api.client.util"),
            classesInPackage("com.google.api.services.storage"),
            classesInPackage("com.google.auth"),
            classesInPackage("com.fasterxml.jackson.annotation"),
            classesInPackage("java"),
            classesInPackage("javax"),
            classesInPackage("org.apache.beam.sdk"),
            classesInPackage("org.joda.time"),
            classesInPackage("org.junit"));

    assertThat(apiSurface, containsOnlyClassesMatching(allowedClasses));
  }
}