public void testReadSwappedDouble() throws IOException {
byte[] bytes = new byte[] {0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01};
double d1 = Double.longBitsToDouble(0x0102030405060708L);
double d2 = EndianUtils.readSwappedDouble(bytes, 0);
assertEquals(d1, d2, 0.0);
ByteArrayInputStream input = new ByteArrayInputStream(bytes);
assertEquals(d1, EndianUtils.readSwappedDouble(input), 0.0);
}
public void testEOFException() throws IOException {
ByteArrayInputStream input = new ByteArrayInputStream(new byte[] {});
try {
EndianUtils.readSwappedDouble(input);
fail("Expected EOFException");
} catch (EOFException e) {
// expected
}
}
// 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);
}
}
