//Test of ConstantExpAppearsNonConstant.ql import java.util.*; class Test{ public void tester(){ Random rnd = new Random(); int lit = 42; //OK int paren = (9); //OK int plusone = +1; //OK //Multiplication by 0 int mul_not_constant = 42 * 6; //OK int mul_constant_left = 0 * 60 * 60 * 24; //OK int mul_constant_right = 60 * 60 * 24 * 0; //OK int mul_is_not_constant = rnd.nextInt() * 1; //OK int mul_is_constant_int_left = 0 * rnd.nextInt(); //NOT OK int mul_is_constant_int_right = rnd.nextInt() * 0; //NOT OK long mul_is_constant_hex = rnd.nextLong() * 0x0; //NOT OK long mul_is_constant_binary = rnd.nextLong() * 00; //NOT OK //Remainder by 1 int rem_not_constant = 42 % 6; //OK int rem_constant = 60 % 1; //OK int rem_is_not_constant = rnd.nextInt() % 2; //OK int rem_is_constant_int = rnd.nextInt() % 1; //NOT OK double rem_is_constant_float = rnd.nextDouble() % 1; //OK (remainder by 1 on floats is not constant) long rem_is_constant_hex = rnd.nextLong() % 0x1; //NOT OK long rem_is_constant_binary = rnd.nextLong() % 01; //NOT OK //Left shift by 32 or 64 int lshift_not_constant_int = 42 << 6; //OK long lshift_not_constant_long = 42L << 6; //OK int lshift_constant_cast = ((char) 42) << 16; //OK int lshift_not_constant_byte = ((byte)rnd.nextInt(8)) << 8; //OK (not constant, because of conversion from byte to int) int lshift_is_constant_byte = ((byte)rnd.nextInt(8)) << 32; //NOT OK int lshift_not_constant_char = ((char)rnd.nextInt(8)) << 8; //OK (not constant, because of conversion from byte to int) int lshift_is_constant_char = ((char)rnd.nextInt(8)) << 32; //NOT OK int lshift_not_constant_short = ((byte)rnd.nextInt(42)) << 16; //OK (not constant, because of conversion from byte to int) int lshift_is_constant_short = ((byte)rnd.nextInt(42)) << 32; //NOT OK int lshift_appears_constant_int = 60 << 32; //OK long lshift_appears_constant_long = 60L << 64; //OK int lshift_is_not_constant = rnd.nextInt() << 2; //OK int lshift_is_constant_int = rnd.nextInt() << 32; //NOT OK long lshift_is_constant_long = rnd.nextLong() << 64; //NOT OK int lshift_is_constant_int_hex = rnd.nextInt() << 0x20; //NOT OK int lshift_is_constant_int_binary = rnd.nextInt() << 040; //NOT OK long lshift_is_constant_long_hex = rnd.nextLong() << 0x40; //NOT OK long lshift_is_constant_long_binary = rnd.nextLong() << 0100; //NOT OK //Bitwise 'and' by 0 int band_not_constant = 42 & 6; //OK int band_appears_constant_left = 0 & 60; //OK int band_appears_constant_right = 24 & 0; //OK int band_is_not_constant = rnd.nextInt() & 5; //OK int band_is_constant_left = 0 & rnd.nextInt(); //NOT OK int band_is_constant_right = rnd.nextInt() & 0; //NOT OK //Logical 'and' by false boolean and_not_constant = true && true; //OK boolean and_appears_constant_left = false && true; //OK boolean and_appears_constant_right = true && false; //OK boolean and_is_not_constant = (rnd.nextInt() > 0) && true; //OK boolean and_is_constant_left = false && (rnd.nextInt() > 0); // don't flag (deliberately disabled) boolean and_is_constant_right = (rnd.nextInt() > 0) && false; // don't flag (deliberately disabled) //Logical 'or' by true boolean or_not_constant = false || false; //OK boolean or_appears_constant_left = true || false; //OK boolean or_appears_constant_right = false || true; //OK boolean or_is_not_constant = (rnd.nextInt() > 0) || false; //OK boolean or_is_constant_left = true || (rnd.nextInt() > 0); //NOT OK boolean or_is_constant_right = (rnd.nextInt() > 0) || true; //NOT OK } }