/** Test the hexadecimal string representation of the host data. */
public void testToHexString() {
assertTrue(null == HostData.toHexString(null));
try {
assertTrue(null == HostData.toHexString(new byte[0], 5, 10));
fail("Length error not detected");
} catch (IllegalArgumentException e) {
assertEquals("Invalid start or length parameter", e.getMessage());
}
assertEquals("00", HostData.toHexString(new byte[] {0x00}));
assertEquals("0001", HostData.toHexString(new byte[] {0x00, 0x01}));
assertEquals("0001ff", HostData.toHexString(new byte[] {0x00, 0x01, -0x01}));
assertEquals("", HostData.toHexString(new byte[] {0x00, 0x01}, 0, 0));
assertEquals("00", HostData.toHexString(new byte[] {0x00, 0x01}, 0, 1));
assertEquals("01", HostData.toHexString(new byte[] {0x00, 0x01}, 1, 1));
}
/** Test the hexadecimal string representation of the host data with maximum. */
public void testToHexStringWithMax() {
assertTrue(null == HostData.toHexString(null, 100));
try {
assertTrue(null == HostData.toHexString(new byte[0], 5, 10, 100));
fail("Length error not detected");
} catch (IllegalArgumentException e) {
assertEquals("Invalid start or length parameter", e.getMessage());
}
try {
assertEquals("0001", HostData.toHexString(new byte[] {0x00, 0x01}, 1));
fail("Length error not detected");
} catch (IllegalArgumentException e) {
assertEquals("maxBytes cannot be smaller than 2", e.getMessage());
}
assertEquals("0001", HostData.toHexString(new byte[] {0x00, 0x01}, 2));
assertEquals("0001", HostData.toHexString(new byte[] {0x00, 0x01}, 3));
assertEquals("00....02", HostData.toHexString(new byte[] {0x00, 0x01, 0x02}, 2));
assertEquals("00....03", HostData.toHexString(new byte[] {0x00, 0x01, 0x02, 0x03}, 2));
assertEquals("00....03", HostData.toHexString(new byte[] {0x00, 0x01, 0x02, 0x03}, 3));
assertEquals("00010203", HostData.toHexString(new byte[] {0x00, 0x01, 0x02, 0x03}, 4));
assertEquals(
"00....04", HostData.toHexString(new byte[] {0x00, 0x01, 0x02, 0x03, 0x04}, 0, 5, 2));
assertEquals(
"00....03", HostData.toHexString(new byte[] {0x00, 0x01, 0x02, 0x03, 0x04}, 0, 4, 2));
assertEquals(
"01....04", HostData.toHexString(new byte[] {0x00, 0x01, 0x02, 0x03, 0x04}, 1, 4, 2));
assertEquals(
"01020304", HostData.toHexString(new byte[] {0x00, 0x01, 0x02, 0x03, 0x04}, 1, 4, 4));
}
