.hash()
            .toString());
    assertThrows(IllegalStateException.class, () -> sha1.hash());
  }

  public void testToString() {
    assertEquals("Hashing.md5()", Hashing.md5().toString());
    assertEquals("Hashing.sha1()", Hashing.sha1().toString());
    assertEquals("Hashing.sha256()", Hashing.sha256().toString());
    assertEquals("Hashing.sha512()", Hashing.sha512().toString());
  }

    File asciiFile = getTestFile("ascii.txt");
    File i18nFile = getTestFile("i18n.txt");
    assertEquals(ASCII, Files.toString(asciiFile, Charsets.US_ASCII));
    assertEquals(I18N, Files.toString(i18nFile, Charsets.UTF_8));
    assertThat(Files.toString(i18nFile, Charsets.US_ASCII)).isNotEqualTo(I18N);
  }

  public void testWriteString() throws IOException {
    File temp = createTempFile();

    }

    public void debug(CharSequence content) {
        if (isDebugEnabled()) {
            logger.debug(toString(content));
        }
    }

    @Override
    public void debug(CharSequence content, Throwable error) {
        if (isDebugEnabled()) {
            logger.debug(toString(content), error);
        }
    }

    @Override
    public void debug(Throwable error) {

        tags = PrunedTag.parse("a.link,div#123");
        assertEquals(2, tags.length);
        assertEquals("PrunedTag [tag=a, id=null, css=link, attrName=null, attrValue=null]", tags[0].toString());
        assertEquals("PrunedTag [tag=div, id=123, css=null, attrName=null, attrValue=null]", tags[1].toString());

        tags = PrunedTag.parse("a#test-a");

    assertEquals(expected, helper.toString());
    // Call toString again
    assertEquals(expected, helper.toString());

    // Make sure the cached value is reset when we modify the helper at all
    final String expected2 = "TestClass{field1=1, value1, field2=value2, 2}";
    helper.addValue(2);
    assertEquals(expected2, helper.toString());
  }

        if (isDebugEnabled()) {
            log.debug(toString(message), throwable);
        }
    }

    /**
     * DEBUG情報を出力します。
     *
     * @param message
     *            メッセージ
     */
    public void debug(final Object message) {
        if (isDebugEnabled()) {
            log.debug(toString(message));
        }
    }

    /**
     * INFO情報が出力されるかどうかを返します。

@GwtCompatible
@ElementTypesAreNonnullByDefault
public final class Functions {
  private Functions() {}

  /**
   * A function equivalent to the method reference {@code Object::toString}, for users not yet using
   * Java 8. The function simply invokes {@code toString} on its argument and returns the result. It
   * throws a {@link NullPointerException} on null input.
   *

  private final int bits;
  private final String toString;

  ChecksumHashFunction(
      ImmutableSupplier<? extends Checksum> checksumSupplier, int bits, String toString) {
    this.checksumSupplier = checkNotNull(checksumSupplier);
    checkArgument(bits == 32 || bits == 64, "bits (%s) must be either 32 or 64", bits);
    this.bits = bits;
    this.toString = checkNotNull(toString);
  }

  @Override
  public int bits() {

    INSTANCE;

    @Override
    public void funnel(byte[] from, PrimitiveSink into) {
      into.putBytes(from);
    }

    @Override
    public String toString() {
      return "Funnels.byteArrayFunnel()";
    }
  }

  /**
   * Returns a funnel that extracts the characters from a {@code CharSequence}, a character at a

        assertThat(UnsignedBytes.parseUnsignedByte(Integer.toString(i, radix), radix))
            .isEqualTo((byte) i);
      }
      assertParseFails(Integer.toString(1000, radix), radix);
      assertParseFails(Integer.toString(-1, radix), radix);
      assertParseFails(Integer.toString(-128, radix), radix);
      assertParseFails(Integer.toString(256, radix), radix);
    }
  }