public void testUnpack() throws Exception {
byte[] raw = "1234".getBytes();
IFA_BINARY packager = new IFA_BINARY(2, "Should be 1234");
ISOBinaryField field = new ISOBinaryField(12);
packager.unpack(field, raw, 0);
TestUtils.assertEquals(new byte[] {0x12, 0x34}, (byte[]) field.getValue());
}
public void testReversability() throws Exception {
byte[] origin = new byte[] {0x12, 0x34, 0x56, 0x78};
ISOBinaryField f = new ISOBinaryField(12, origin);
IFA_BINARY packager = new IFA_BINARY(4, "Should be 12345678");
ISOBinaryField unpack = new ISOBinaryField(12);
packager.unpack(unpack, packager.pack(f), 0);
TestUtils.assertEquals(origin, (byte[]) unpack.getValue());
}
public void testPackWrongLength() throws Exception {
try {
ISOBinaryField field = new ISOBinaryField(12, new byte[] {0x12, 0x34});
IFA_BINARY packager = new IFA_BINARY(3, "Should be 1234");
packager.pack(field);
fail("Packing 2 bytes into 3 should throw an exception");
} catch (Exception ignored) {
// Exception expected - correct behaviour
}
}
public void testPack() throws Exception {
ISOBinaryField field = new ISOBinaryField(12, new byte[] {0x12, 0x34});
IFA_BINARY packager = new IFA_BINARY(2, "Should be 1234");
TestUtils.assertEquals("1234".getBytes(), packager.pack(field));
}