Supplier<Integer> supplier = new CountingSupplier();
    Function<@Nullable Object, Integer> function = Functions.forSupplier(supplier);

    assertEquals(1, (int) function.apply(null));
    assertEquals(2, (int) function.apply("foo"));

    new EqualsTester()
        .addEqualityGroup(function, Functions.forSupplier(supplier))
        .addEqualityGroup(Functions.forSupplier(new CountingSupplier()))

            wagon.connect(new Repository(repository.getId(), repository.getUrl()), proxyInfo(repository));
        } else {
            wagon.connect(new Repository(repository.getId(), repository.getUrl()));
        }
    }

    private AuthenticationInfo authenticationInfo(ArtifactRepository repository) {
        AuthenticationInfo ai = new AuthenticationInfo();

    assertSuppressed(
        new Suppression(c2, tryException, c2Exception),
        new Suppression(c1, tryException, c1Exception));
  }

  public void testErrors() throws IOException {
    Closer closer = new Closer(suppressor);

    Error c1Exception = new Error();
    Error c2Exception = new Error();
    Error c3Exception = new Error();

        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch endLatch = new CountDownLatch(threadCount);
        final List<Exception> exceptions = new ArrayList<>();

        ExecutorService executor = Executors.newFixedThreadPool(threadCount);

        for (int i = 0; i < threadCount; i++) {
            final int threadId = i;
            executor.submit(new Runnable() {
                @Override

              result.put(key, value);
              // add extra entries
              result.put(value, key);
            }
            return result;
          }
        };
    LoadingCache<Object, Object> cache = CacheBuilder.newBuilder().build(loader);

    Object[] lookupKeys = new Object[] {new Object(), new Object(), new Object()};
    Map<Object, Object> result = cache.getAll(asList(lookupKeys));

    }

    @Test
    void testEquals() {
        ToolchainModel tm1 = new ToolchainModel();
        tm1.setType("jdk");
        tm1.addProvide("version", "1.5");
        tm1.addProvide("vendor", "sun");
        Xpp3Dom configuration1 = new Xpp3Dom("configuration");
        Xpp3Dom jdkHome1 = new Xpp3Dom("jdkHome");
        jdkHome1.setValue("${env.JAVA_HOME}");
        configuration1.addChild(jdkHome1);

                return (T) new DefaultArtifactResolver();
            } else if (clazz == ArtifactManager.class) {
                return (T) new DefaultArtifactManager(this);
            } else if (clazz == RepositoryFactory.class) {
                return (T) new DefaultRepositoryFactory(new DefaultRemoteRepositoryManager(
                        new DefaultUpdatePolicyAnalyzer(),
                        new DefaultChecksumPolicyProvider(),

        SmbClient client = new SmbClient();
        client.setResolveSids(false);
        StandardCrawlerContainer container =
                new StandardCrawlerContainer().singleton("smbClient", client).singleton("mimeTypeHelper", MimeTypeHelperImpl.class);

        Map<String, Object> params = new HashMap<>();
        SmbAuthentication auth = new SmbAuthentication();
        auth.setUsername("testuser");

        }

        problems.setRootModel(inputModel);

        ModelData resultData = new ModelData(request.getModelSource(), inputModel);
        ModelData superData = new ModelData(null, getSuperModel());

        Collection<String> parentIds = new LinkedHashSet<>();
        List<ModelData> lineage = new ArrayList<>();

        for (ModelData currentData = resultData; currentData != null; ) {

    }

    @Test
    @DisplayName("Test with empty data")
    void testWithEmptyData() {
        // Given
        byte[] emptyData = new byte[0];
        transCallNamedPipe = new TransCallNamedPipe(mockConfig, TEST_PIPE_NAME, emptyData, 0, 0);
        byte[] dst = new byte[10];

        // When
        int bytesWritten = transCallNamedPipe.writeDataWireFormat(dst, 0);

        // Then