uniform half4 testInputs;
uniform half4 colorGreen, colorRed;

half4 main(float2 coords) {
    int4 intValues = int4(testInputs * 100);
    int4 intGreen  = int4(colorGreen * 100);

    int4 expectedA = int4(-125, 0, 50, 50);
    int4 expectedB = int4(-125, 0, 0, 100);
    return (min(intValues.x,    50)            == expectedA.x     &&
            min(intValues.xy,   50)            == expectedA.xy    &&
            min(intValues.xyz,  50)            == expectedA.xyz   &&
            min(intValues.xyzw, 50)            == expectedA.xyzw  &&
            min(intValues.x,    intGreen.x)    == expectedB.x     &&
            min(intValues.xy,   intGreen.xy)   == expectedB.xy    &&
            min(intValues.xyz,  intGreen.xyz)  == expectedB.xyz   &&
            min(intValues.xyzw, intGreen.xyzw) == expectedB.xyzw) ? colorGreen : colorRed;
}