[rtv 0]
format r32g32b32a32-float
size (2d, 640, 480)

[rtv 1]
format r32g32b32a32-float
size (2d, 640, 480)

[pixel shader]
void main(out float4 o0 : sv_target0, out float4 o1 : sv_target1)
{
    o0 = float4(0.1, 0.2, 0.3, 0.4);
    o1 = float4(0.5, 0.6, 0.7, 0.8);
}

[test]
todo(msl) draw quad
probe rtv 0 (0,0) rgba (0.1, 0.2, 0.3, 0.4)
probe rtv 1 (0,0) rgba (0.5, 0.6, 0.7, 0.8)