write
Writes a big-endian int to this sink using four bytes.
Buffer buffer = new Buffer();
buffer.writeInt(2147483647);
buffer.writeInt(15);
assertEquals(8, buffer.size());
assertEquals((byte) 0x7f, buffer.readByte());
assertEquals((byte) 0xff, buffer.readByte());
assertEquals((byte) 0xff, buffer.readByte());
assertEquals((byte) 0xff, buffer.readByte());
assertEquals((byte) 0x00, buffer.readByte());
assertEquals((byte) 0x00, buffer.readByte());
assertEquals((byte) 0x00, buffer.readByte());
assertEquals((byte) 0x0f, buffer.readByte());
assertEquals(0, buffer.size());