escapedInput.append(c);
        } else {
          escapedInput.append(String.format("\\u%04x", (int) c));
        }
      }
      fail("FLOATING_POINT_PATTERN should have matched valid input <" + escapedInput + ">");
    }
  }

  @GwtIncompatible // Doubles.tryParse
  private static void checkTryParse(double expected, String input) {

     * only to a server, this method determines if the server exists on the
     * network and is advertising SMB services. If this resource refers to
     * a workgroup, this method determines if the workgroup name is valid on
     * the local SMB network. If this <code>SmbResource</code> refers to the root
     * <code>smb://</code> resource <code>true</code> is always returned. If

		t.Error(err)
	}

	levelB1 := &LevelB1{Value: "foo"}
	if err := DB.Create(levelB1).Error; err != nil {
		t.Error(err)
	}

	levelB3 := &LevelB3{
		Value:     "bar",
		LevelB1ID: sql.NullInt64{Valid: true, Int64: int64(levelB1.ID)},
		LevelB2s:  []*LevelB2{},
	}
	if err := DB.Create(levelB3).Error; err != nil {
		t.Error(err)
	}
	levelB1.LevelB3s = []*LevelB3{levelB3}

	want := []*LevelB1{levelB1}

    }

    // Test valid cases.

    // Exactly 120.
    key = (
      "0123456789012345678901234567890123456789012345678901234567890123456789" +
        "01234567890123456789012345678901234567890123456789"
    )
    cache.edit(key)!!.abort()
    // Contains all valid characters.
    key = "abcdefghijklmnopqrstuvwxyz_0123456789"
    cache.edit(key)!!.abort()

you should first check whether the call succeeded before checking the error
result. For example:

	n, err := C.setenv(key, value, 1)
	if n != 0 {
		// we know the call failed, so it is now valid to use err
		return err
	}

Calling C function pointers is currently not supported, however you can
declare Go variables which hold C function pointers and pass them

Another big feature needed by APIs is data validation, making sure that the data is valid, given certain parameters. For example, that some field is an `int`, and not some random string. This is especially useful for incoming data.

Without a data validation system, you would have to do all the checks by hand, in code.

    return asList(elements).iterator();
  }

  // In GWT, java.util.TreeSet throws ClassCastException when the comparator
  // throws it, unlike JDK6.  Therefore, we accept ClassCastException as a
  // valid result thrown by java.util.TreeSet#equals.
  private static void assertNotEqualLenient(TreeSet<?> unexpected, SortedSet<?> actual) {
    try {
      assertThat(actual).isNotEqualTo(unexpected);

		cdisk := diskMap[endpoint]
		if cdisk != nil && cdisk.IsOnline() {
			if s.lastConnectDisksOpTime.IsZero() {
				continue
			}

			// An online-disk means its a valid disk but it may be a re-connected disk
			// we verify that here based on LastConn(), however we make sure to avoid
			// putting it back into the s.erasureDisks by re-placing the disk again.
			_, setIndex, _ := cdisk.GetDiskLoc()

		if err != nil {
			return toObjectErr(err, dataUsageBucket, name)
		}
		if !retry {
			break
		}
		retry, err = load(name+".bkp", 30*time.Second)
		if err == nil && !retry {
			// Only return when we have valid data from the backup
			break
		}
		retries++
		time.Sleep(time.Duration(rand.Int63n(int64(time.Second))))
	}

	if retries == 5 {

// even if one of the sets fail to create buckets, we proceed all the successful
// operations.
func (z *erasureServerPools) MakeBucket(ctx context.Context, bucket string, opts MakeBucketOptions) error {
	// Verify if bucket is valid.
	if !isMinioMetaBucketName(bucket) {
		if err := s3utils.CheckValidBucketNameStrict(bucket); err != nil {
			return BucketNameInvalid{Bucket: bucket}
		}

		if !opts.NoLock {