uniform half4 testInputs;
uniform half4 colorGreen, colorRed;

half4 main(float2 coords) {
    const half4 constVal   = half4(-1.25, 0, 0.75, 2.25);
    const half4 constRed   = half4(1, 0, 0, 1);
    const half4 constGreen = half4(0, 1, 0, 1);

    half4 expectedA = half4(0.0, 0.0, 0.84375, 1.0);
    half4 expectedB = half4(1.0, 0.0, 1.0, 1.0);

    return (smoothstep(0,             1,               constVal.x)    == expectedA.x     &&
            smoothstep(0,             1,               constVal.xy)   == expectedA.xy    &&
            smoothstep(0,             1,               constVal.xyz)  == expectedA.xyz   &&
            smoothstep(0,             1,               constVal.xyzw) == expectedA.xyzw  &&
            smoothstep(0,             1,               constVal.x)    == expectedA.x     &&
            smoothstep(0,             1,               constVal.xy)   == expectedA.xy    &&
            smoothstep(0,             1,               constVal.xyz)  == expectedA.xyz   &&
            smoothstep(0,             1,               constVal.xyzw) == expectedA.xyzw  &&
            smoothstep(colorRed.g,    colorGreen.g,    constVal.x)    == expectedA.x     &&
            smoothstep(colorRed.g,    colorGreen.g,    constVal.xy)   == expectedA.xy    &&
            smoothstep(colorRed.g,    colorGreen.g,    constVal.xyz)  == expectedA.xyz   &&
            smoothstep(colorRed.g,    colorGreen.g,    constVal.xyzw) == expectedA.xyzw  &&
            smoothstep(constRed.x,    constGreen.x,    constVal.x)    == expectedB.x     &&
            smoothstep(constRed.xy,   constGreen.xy,   constVal.xy)   == expectedB.xy    &&
            smoothstep(constRed.xyz,  constGreen.xyz,  constVal.xyz)  == expectedB.xyz   &&
            smoothstep(constRed.xyzw, constGreen.xyzw, constVal.xyzw) == expectedB.xyzw  &&
            smoothstep(colorRed.x,    colorGreen.x,    constVal.x)    == expectedB.x     &&
            smoothstep(colorRed.xy,   colorGreen.xy,   constVal.xy)   == expectedB.xy    &&
            smoothstep(colorRed.xyz,  colorGreen.xyz,  constVal.xyz)  == expectedB.xyz   &&
            smoothstep(colorRed.xyzw, colorGreen.xyzw, constVal.xyzw) == expectedB.xyzw)
                ? colorGreen : colorRed;
}