Collections.singletonList(system),
                nonTransitiveDependencyScopes));
        result.add(internalScopeManager.createResolutionScope(
                RS_MAIN_COMPILE_PLUS_RUNTIME,
                InternalScopeManager.Mode.ELIMINATE,
                byProjectPath(CommonBuilds.PROJECT_PATH_MAIN),
                Collections.singletonList(system),
                nonTransitiveDependencyScopes));

        return new DefaultPhase(name, Collections.singletonList(plugin), Collections.emptyList());
    }

    static Plugin plugin(String coord, String phase) {
        String[] c = coord.split(":");
        return Plugin.newBuilder()
                .groupId(c[0])
                .artifactId(c[1])
                .version(c[2])
                .executions(Collections.singletonList(PluginExecution.newBuilder()

                Collections.singletonList(system),
                nonTransitiveDependencyScopes));
        result.add(internalScopeManager.createResolutionScope(
                RS_MAIN_COMPILE_PLUS_RUNTIME,
                InternalScopeManager.Mode.ELIMINATE,
                byProjectPath(CommonBuilds.PROJECT_PATH_MAIN),
                Collections.singletonList(system),
                nonTransitiveDependencyScopes));

        model = Model.newBuilder()
                .profiles(Collections.singletonList(modelProfile))
                .build();
        builder = Model.newBuilder(model);
        modelMerger.mergeModel_Prerequisites(builder, model, parent, false, null);
        assertEquals(Collections.singletonList(modelProfile), builder.build().getProfiles());
    }

        return Collections.singletonList(new DefaultArtifactVersion("10.1.3"));
    }

    public List<ArtifactVersion> retrieveAvailableVersionsFromDeploymentRepository(
            Artifact artifact, ArtifactRepository localRepository, ArtifactRepository remoteRepository) {
        return Collections.singletonList(new DefaultArtifactVersion("10.1.3"));
    }

  }

  public void testIsEmpty() {
    Iterable<String> emptyList = Collections.emptyList();
    assertTrue(Iterables.isEmpty(emptyList));

    Iterable<String> singletonList = Collections.singletonList("foo");
    assertFalse(Iterables.isEmpty(singletonList));
  }

  public void testSkip_simple() {
    Collection<String> set = ImmutableSet.of("a", "b", "c", "d", "e");

  public void testPartition_1_1() {
    List<Integer> source = Collections.singletonList(1);
    List<List<Integer>> partitions = Lists.partition(source, 1);
    assertEquals(1, partitions.size());
    assertEquals(Collections.singletonList(1), partitions.get(0));
  }

  public void testPartition_1_2() {
    List<Integer> source = Collections.singletonList(1);
    List<List<Integer>> partitions = Lists.partition(source, 2);

        DefaultMavenMetadataCache.CacheKey k1 =
                new DefaultMavenMetadataCache.CacheKey(a1, false, lr1, Collections.singletonList(rr1));
        DefaultMavenMetadataCache.CacheKey k2 =
                new DefaultMavenMetadataCache.CacheKey(a2, false, lr2, Collections.singletonList(rr2));

        assertEquals(k1.hashCode(), k2.hashCode());
    }

            project.setRootDirectory(Paths.get("src/test/resources/consumer/trivial"));
            project.setOriginalModel(model);
            project.setRemoteArtifactRepositories(Collections.singletonList(new MavenArtifactRepository(
                    "central", "http://repo.maven.apache.org/", new DefaultRepositoryLayout(), null, null)));
        }
        Model model = builder.build(session, project, file);

  public void testPartition_1_1() {
    List<Integer> source = Collections.singletonList(1);
    List<List<Integer>> partitions = Lists.partition(source, 1);
    assertEquals(1, partitions.size());
    assertEquals(Collections.singletonList(1), partitions.get(0));
  }

  public void testPartition_1_2() {
    List<Integer> source = Collections.singletonList(1);
    List<List<Integer>> partitions = Lists.partition(source, 2);