[pixel shader]
float4 main() : SV_TARGET
{
    float x = 5.0;
    float y = 15.0;

    return float4(x + y, x - y, x * y, x / y);
}

[test]
draw quad
probe all rgba (20.0, -10.0, 75.0, 0.33333333)

[pixel shader]
float4 main() : SV_TARGET
{
    float x = 5.0;
    float y = 15.0;

    return float4(x % y, +x, -x, y / x);
}

[test]
todo draw quad
probe all rgba (5.0, 5.0, -5.0, 3.0)