}

  public void testWriteString() throws IOException {
    File temp = createTempFile();
    Files.write(I18N, temp, Charsets.UTF_16LE);
    assertEquals(I18N, Files.toString(temp, Charsets.UTF_16LE));
  }

  public void testWriteBytes() throws IOException {
    File temp = createTempFile();
    byte[] data = newPreFilledByteArray(2000);
    Files.write(data, temp);

        throw new IllegalStateException(e);
      }
    }

    @Override
    public float readFloat() {
      try {
        return input.readFloat();
      } catch (IOException e) {
        throw new IllegalStateException(e);
      }
    }

    @Override
    public double readDouble() {
      try {
        return input.readDouble();
      } catch (IOException e) {

                throws IOException {
              Files.deleteIfExists(file);
              return FileVisitResult.CONTINUE;
            }

            @Override
            public FileVisitResult postVisitDirectory(Path dir, IOException exc)
                throws IOException {
              if (exc != null) {
                return FileVisitResult.TERMINATE;

   *     an {@code IOException}.
   * @see Closeables#close
   */
  public static void flush(Flushable flushable, boolean swallowIOException) throws IOException {
    try {
      flushable.flush();
    } catch (IOException e) {
      if (swallowIOException) {
        logger.log(Level.WARNING, "IOException thrown while flushing Flushable.", e);
      } else {
        throw e;
      }
    }
  }

  /**

  private void setupCloseable(boolean shouldThrow) throws IOException {
    mockCloseable = mock(Closeable.class);
    if (shouldThrow) {
      doThrow(new IOException("This should only appear in the logs. It should not be rethrown."))
          .when(mockCloseable)
          .close();
    }
  }

  private void doClose(Closeable closeable, boolean swallowException) throws IOException {

  }

  public void testCopyTo_appendable() throws IOException {
    StringBuilder builder = new StringBuilder();

    assertEquals(STRING.length(), source.copyTo(builder));
    assertTrue(source.wasStreamOpened() && source.wasStreamClosed());

    assertEquals(STRING, builder.toString());
  }

  public void testCopyTo_charSink() throws IOException {
    TestCharSink sink = new TestCharSink();

  }

  public void testCopyTo_outputStream() throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();

    assertEquals(bytes.length, source.copyTo(out));
    assertTrue(source.wasStreamOpened() && source.wasStreamClosed());

    assertArrayEquals(bytes, out.toByteArray());
  }

  public void testCopyTo_byteSink() throws IOException {
    TestByteSink sink = new TestByteSink();

    throwIf(closed);
    throwIf(WRITE_THROWS);
    super.write(b);
  }

  @Override
  public void close() throws IOException {
    closed = true;
    super.close();
    throwIf(CLOSE_THROWS);
  }

  private void throwIf(TestOption option) throws IOException {
    throwIf(options.contains(option));
  }

  private static void throwIf(boolean condition) throws IOException {

import static java.nio.file.attribute.PosixFilePermission.OWNER_READ;
import static java.nio.file.attribute.PosixFilePermission.OWNER_WRITE;
import static org.junit.Assert.assertThrows;

import java.io.File;
import java.io.IOException;
import java.nio.file.attribute.PosixFileAttributeView;
import java.nio.file.attribute.PosixFileAttributes;
import junit.framework.TestCase;

/**
 * Unit test for {@link Files#createTempDir}.
 *

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.io;

import static com.google.common.base.Charsets.UTF_8;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;

/**
 * A char source for testing that has configurable options.
 *
 * @author Colin Decker
 */