public void testWriteSwappedDouble() throws IOException {
byte[] bytes = new byte[8];
double d1 = Double.longBitsToDouble(0x0102030405060708L);
EndianUtils.writeSwappedDouble(bytes, 0, d1);
assertEquals(0x08, bytes[0]);
assertEquals(0x07, bytes[1]);
assertEquals(0x06, bytes[2]);
assertEquals(0x05, bytes[3]);
assertEquals(0x04, bytes[4]);
assertEquals(0x03, bytes[5]);
assertEquals(0x02, bytes[6]);
assertEquals(0x01, bytes[7]);
ByteArrayOutputStream baos = new ByteArrayOutputStream(8);
EndianUtils.writeSwappedDouble(baos, d1);
bytes = baos.toByteArray();
assertEquals(0x08, bytes[0]);
assertEquals(0x07, bytes[1]);
assertEquals(0x06, bytes[2]);
assertEquals(0x05, bytes[3]);
assertEquals(0x04, bytes[4]);
assertEquals(0x03, bytes[5]);
assertEquals(0x02, bytes[6]);
assertEquals(0x01, bytes[7]);
}
// tests #IO-101
public void testSymmetryOfLong() {
double[] tests = new double[] {34.345, -345.5645, 545.12, 10.043, 7.123456789123};
for (int i = 0; i < tests.length; i++) {
// testing the real problem
byte[] buffer = new byte[8];
long ln1 = Double.doubleToLongBits(tests[i]);
EndianUtils.writeSwappedLong(buffer, 0, ln1);
long ln2 = EndianUtils.readSwappedLong(buffer, 0);
assertEquals(ln1, ln2);
// testing the bug report
buffer = new byte[8];
EndianUtils.writeSwappedDouble(buffer, 0, tests[i]);
double val = EndianUtils.readSwappedDouble(buffer, 0);
assertEquals(tests[i], val, 0);
}
}
// tests #IO-101
@Test
public void testSymmetryOfLong() {
final double[] tests = new double[] {34.345, -345.5645, 545.12, 10.043, 7.123456789123};
for (final double test : tests) {
// testing the real problem
byte[] buffer = new byte[8];
final long ln1 = Double.doubleToLongBits(test);
EndianUtils.writeSwappedLong(buffer, 0, ln1);
final long ln2 = EndianUtils.readSwappedLong(buffer, 0);
assertEquals(ln1, ln2);
// testing the bug report
buffer = new byte[8];
EndianUtils.writeSwappedDouble(buffer, 0, test);
final double val = EndianUtils.readSwappedDouble(buffer, 0);
assertEquals(test, val, 0);
}
}
