JavaTestRuleTest.java example

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buck-master
/*
 * Copyright 2012-present Facebook, 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.facebook.buck.jvm.java;

import static org.easymock.EasyMock.createMock;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;

import com.facebook.buck.model.BuildTargetFactory;
import com.facebook.buck.parser.NoSuchBuildTargetException;
import com.facebook.buck.rules.BuildRuleResolver;
import com.facebook.buck.rules.DefaultTargetNodeToBuildRuleTransformer;
import com.facebook.buck.rules.SourcePathResolver;
import com.facebook.buck.rules.SourcePathRuleFinder;
import com.facebook.buck.rules.TargetGraph;
import com.facebook.buck.step.TargetDevice;
import com.facebook.buck.testutil.MoreAsserts;
import com.facebook.buck.util.MoreCollectors;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSortedSet;
import java.nio.file.Paths;
import java.util.List;
import java.util.Optional;
import org.hamcrest.Matchers;
import org.junit.Test;

public class JavaTestRuleTest {

  @Test
  public void shouldNotAmendVmArgsIfTargetDeviceIsNotPresent() throws Exception {
    ImmutableList<String> vmArgs = ImmutableList.of("--one", "--two", "--three");
    JavaTest rule = newRule(vmArgs);

    ImmutableList<String> amended =
        rule.amendVmArgs(vmArgs, createMock(SourcePathResolver.class), Optional.empty());

    MoreAsserts.assertListEquals(vmArgs, amended);
  }

  @Test
  public void shouldAddEmulatorTargetDeviceToVmArgsIfPresent() throws Exception {
    ImmutableList<String> vmArgs = ImmutableList.of("--one");
    JavaTest rule = newRule(vmArgs);

    TargetDevice device = new TargetDevice(TargetDevice.Type.EMULATOR, Optional.empty());
    ImmutableList<String> amended =
        rule.amendVmArgs(vmArgs, createMock(SourcePathResolver.class), Optional.of(device));

    ImmutableList<String> expected = ImmutableList.of("--one", "-Dbuck.device=emulator");
    assertEquals(expected, amended);
  }

  @Test
  public void shouldAddRealTargetDeviceToVmArgsIfPresent() throws Exception {
    ImmutableList<String> vmArgs = ImmutableList.of("--one");
    JavaTest rule = newRule(vmArgs);

    TargetDevice device = new TargetDevice(TargetDevice.Type.REAL_DEVICE, Optional.empty());
    ImmutableList<String> amended =
        rule.amendVmArgs(vmArgs, createMock(SourcePathResolver.class), Optional.of(device));

    ImmutableList<String> expected = ImmutableList.of("--one", "-Dbuck.device=device");
    assertEquals(expected, amended);
  }

  @Test
  public void shouldAddDeviceSerialIdToVmArgsIfPresent() throws Exception {
    ImmutableList<String> vmArgs = ImmutableList.of("--one");
    JavaTest rule = newRule(vmArgs);

    TargetDevice device = new TargetDevice(TargetDevice.Type.EMULATOR, Optional.of("123"));
    List<String> amended =
        rule.amendVmArgs(vmArgs, createMock(SourcePathResolver.class), Optional.of(device));

    List<String> expected =
        ImmutableList.of("--one", "-Dbuck.device=emulator", "-Dbuck.device.id=123");
    assertEquals(expected, amended);
  }

  @Test
  public void transitiveLibraryDependenciesAreRuntimeDeps() throws Exception {
    BuildRuleResolver resolver =
        new BuildRuleResolver(TargetGraph.EMPTY, new DefaultTargetNodeToBuildRuleTransformer());
    SourcePathResolver pathResolver = new SourcePathResolver(new SourcePathRuleFinder(resolver));

    FakeJavaLibrary transitiveDep =
        resolver.addToIndex(
            new FakeJavaLibrary(BuildTargetFactory.newInstance("//:transitive_dep"), pathResolver));

    FakeJavaLibrary firstOrderDep =
        resolver.addToIndex(
            new FakeJavaLibrary(
                BuildTargetFactory.newInstance("//:first_order_dep"),
                pathResolver,
                ImmutableSortedSet.of(transitiveDep)));

    JavaTest rule =
        JavaTestBuilder.createBuilder(BuildTargetFactory.newInstance("//:rule"))
            .addSrc(Paths.get("ExampleTest.java"))
            .addDep(firstOrderDep.getBuildTarget())
            .build(resolver);

    assertThat(
        rule.getRuntimeDeps().collect(MoreCollectors.toImmutableSet()),
        Matchers.hasItems(
            rule.getCompiledTestsLibrary().getBuildTarget(),
            firstOrderDep.getBuildTarget(),
            transitiveDep.getBuildTarget()));
  }

  private JavaTest newRule(ImmutableList<String> vmArgs) throws NoSuchBuildTargetException {
    return JavaTestBuilder.createBuilder(BuildTargetFactory.newInstance("//example:test"))
        .setVmArgs(vmArgs)
        .addSrc(Paths.get("ExampleTest.java"))
        .build(
            new BuildRuleResolver(
                TargetGraph.EMPTY, new DefaultTargetNodeToBuildRuleTransformer()));
  }
}