private static void assertLong(Slice slice, int index) {
// fill slice with FF
slice.fill((byte) 0xFF);
// set and get the value
slice.setLong(index, 0xAAAA_AAAA_5555_5555L);
assertEquals(slice.getLong(index), 0xAAAA_AAAA_5555_5555L);
try {
slice.getLong(-1);
fail("expected IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
}
try {
slice.getLong((slice.length() - SIZE_OF_LONG) + 1);
fail("expected IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
}
try {
slice.getLong(slice.length());
fail("expected IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
}
try {
slice.getLong(slice.length() + 1);
fail("expected IndexOutOfBoundsException");
} catch (IndexOutOfBoundsException e) {
}
}
@Test
public void testMemoryMappedReads() throws IOException {
Path path = Files.createTempFile("longs", null);
ImmutableList<Long> values = createRandomLongs(20000);
Slice output = allocate(values.size() * Longs.BYTES);
for (int i = 0; i < values.size(); i++) {
output.setLong(i * Longs.BYTES, values.get(i));
}
Files.write(path, output.getBytes());
Slice slice = Slices.mapFileReadOnly(path.toFile());
for (int i = 0; i < values.size(); i++) {
long actual = slice.getLong(i * Longs.BYTES);
long expected = values.get(i);
assertEquals(actual, expected);
}
assertEquals(slice.getBytes(), output.getBytes());
}