com.google.typography.font.sfntly.testutils

Class TestUtils

java.lang.Object

com.google.typography.font.sfntly.testutils.TestUtils

public class TestUtils
extends java.lang.Object

Author:

Stuart Gill

Method Summary

Modifier and Type	Method and Description
static long	checkSum(byte[] b, int offset, int length) Calculate an OpenType checksum from the array.
static java.nio.channels.FileChannel	createFileChannelForWriting(java.io.File file)
static void	createNewFile(java.io.File file) Creates a new file including deleting an already existing file with the same path and name and creating any needed directories.
static java.io.OutputStream	createOutputStream(java.io.File file)
static java.lang.String	dumpLongAsString(int i) Converts an integer into a 4 character string using the ASCII encoding.
static int	encodeOneChar(java.nio.charset.CharsetEncoder encoder, int uchar) Encode a single character in UTF-16.
static boolean	equals(byte[] b1, int offset1, byte[] b2, int offset2, int length) Compare sections of two byte arrays for equality.
static boolean	equals(int offset1, ReadableFontData rfd1, int offset2, ReadableFontData rfd2, int length)
static boolean	equalsNullOk(java.lang.Object o1, java.lang.Object o2) Checks that both objects are equal as defined by the object itself.
static java.lang.String	extension(java.io.File file)
static java.nio.charset.CharsetEncoder	getEncoder(java.lang.String charsetName) Get an encoder for the charset name.
static byte[]	readFile(java.io.File file) Read a file fully into a new byte array.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

equals

public static boolean equals(byte[] b1,
                             int offset1,
                             byte[] b2,
                             int offset2,
                             int length)

Compare sections of two byte arrays for equality.

Parameters:

b1 - byte array 1

offset1 - offset for comparison in byte array 1

b2 - byte array 2

offset2 - offset for comparison in byte array 2

length - the length of the byte arrays to compare

Returns:

true if the array segments are equal; false otherwise

createFileChannelForWriting

public static java.nio.channels.FileChannel createFileChannelForWriting(java.io.File file)
                                                                 throws java.io.IOException

Throws:

java.io.IOException

createNewFile

public static void createNewFile(java.io.File file)
                          throws java.io.IOException

Creates a new file including deleting an already existing file with the same path and name and creating any needed directories.

Parameters:

file - the file to create

Throws:

java.io.IOException

createOutputStream

public static java.io.OutputStream createOutputStream(java.io.File file)
                                               throws java.io.IOException

Throws:

java.io.IOException

dumpLongAsString

public static java.lang.String dumpLongAsString(int i)

Converts an integer into a 4 character string using the ASCII encoding.

Parameters:

i - the value to convert

Returns:

the String based on the number

checkSum

public static long checkSum(byte[] b,
                            int offset,
                            int length)

Calculate an OpenType checksum from the array.

Parameters:

b - the array to calculate checksum on

offset - the starting index in the array

length - the number of bytes to check; must be a multiple of 4

Returns:

checksum

encodeOneChar

public static int encodeOneChar(java.nio.charset.CharsetEncoder encoder,
                                int uchar)

Encode a single character in UTF-16.

Parameters:

encoder - the encoder to use for the encoding

uchar - the Unicode character to encode

Returns:

the encoded character

getEncoder

public static java.nio.charset.CharsetEncoder getEncoder(java.lang.String charsetName)

Get an encoder for the charset name. If the name is null or the empty string then just return null.

Parameters:

charsetName - the charset to get an encoder for

Returns:

an encoder or null if no encoder available for charset name

extension

public static java.lang.String extension(java.io.File file)

readFile

public static byte[] readFile(java.io.File file)
                       throws java.io.IOException

Read a file fully into a new byte array.

Parameters:

file - the file to read

Returns:

the byte array

Throws:

java.io.IOException

equals

public static boolean equals(int offset1,
                             ReadableFontData rfd1,
                             int offset2,
                             ReadableFontData rfd2,
                             int length)

Parameters:

offset1 - offset to start comparing the first ReadableFontData from

rfd1 - the first ReadableFontData

offset2 - offset to start comparing the second ReadableFontData from

rfd2 - the second ReadableFontData

length - the number of bytes to compare

Returns:

true if all bytes in the ranges given are equal; false otherwise

equalsNullOk

public static boolean equalsNullOk(java.lang.Object o1,
                                   java.lang.Object o2)

Checks that both objects are equal as defined by the object itself. If one is null then they are not equal. If both are null they are considered equal.

Parameters:

o1 - first object

o2 - second object

Returns:

true if equal