// test: echo -e '(3 == 4) | (2 > 2)' | calc.exe | grep -q '=> 0'
// test: echo -e '!(3 == 4)' | calc.exe | grep -q '=> 1'
// test: echo -e '!(3 == 3)' | calc.exe | grep -q '=> 0'
-// test: echo -e '1 & 1\n1 | 1\n!1\nquit' | calc.exe -v 3 | grep -qv error
+// test: echo -e '1 & 1\n1 | 1\n!1\nquit' | calc.exe -n -v 3 | grep -qv error
// test: echo -e '(3 == 3) & (4 > 2)' | calc.exe | grep -q '=> 1'
// test: echo -e '3 == 3 & 4 > 2' | calc.exe | grep -q '=> 1'
// test: echo -e '1 + quit' | calc.exe | grep -q error