import math;

// test mod
{
	assert mod(5, 3) == 2.0, "mod(5, 3) failed";
	assert mod(-5, 3) == -2.0, "mod(-5, 3) failed";
	assert mod(-5.5, 3) == -2.5, "mod(-5.5, 3) failed";
	assert mod(0, 1) == 0.0, "mod(0, 1) failed";
	assert mod(-0.0, 1) == -0.0, "mod(0, 1) failed";
}

// test pow
{
	assert pow(5, 3) == 125, "pow(5, 3) failed";
	assert pow(-5, 3) == -125, "pow(-5, 3) failed";
	assert pow(-5.5, 3) == -166.375, "pow(-5.5, 3) failed";
	assert pow(0, 1) == 0.0, "pow(0, 1) failed";
	assert pow(-0.0, 1) == -0.0, "pow(0, 1) failed";
}

// test sqrt
{
	assert sqrt(25) == 5, "sqrt(25) failed";
	assert sqrt(256.0) == 16, "sqrt(256.0) failed";
	assert isnan(sqrt(-256.0)), "sqrt(-256.0) failed";
	assert sqrt(1) == 1, "sqrt(1) failed";
	assert sqrt(0) == 0, "sqrt(0) failed";
}

// test cbrt
{
	assert cbrt(64) == 4, "cbrt(64) failed";
	assert cbrt(4096.0) == 16, "cbrt(4096.0) failed";
	assert cbrt(-64) == -4, "cbrt(-64) failed";
	assert cbrt(1) == 1, "cbrt(1) failed";
	assert cbrt(0) == 0, "cbrt(0) failed";
}

// test hypot
{
	assert hypot(3, 4) == 5, "hypot(3, 4) failed";
}

// test toRad
{
	assert toRad(0) == 0, "toRad 0° failed";
	assert toRad(180) == PI, "toRad 180° failed";
	assert toRad(360) == 2 * PI, "toRad 360° failed";
}


// test toDeg
{
	assert toDeg(0) == 0, "toDeg 0 failed";
	assert toDeg(PI) == 180, "toDeg π failed";
	assert toDeg(2 * PI) == 360, "toDeg 2π failed";
}

// test sin
{
	assert floatCompare(sin(PI), 0), "sin(π) failed";
	assert floatCompare(sin(PI / 2), 1), "sin(π/2) failed";
	assert floatCompare(sin(0), 0), "sin(0) failed";
}


// test cos
{
	assert floatCompare(cos(PI), -1), "cos(π) failed";
	assert floatCompare(cos(PI / 2), 0), "cos(π/2) failed";
	assert floatCompare(cos(0), 1), "cos(0) failed";
}

// test tan
{
	assert floatCompare(tan(PI), 0), "tan(π) failed";
	assert floatCompare(tan(PI / 4), 1), "tan(π/4) failed";
	assert floatCompare(tan(0), 0), "tan(0) failed";
}


// test asin
{
	assert floatCompare(asin(1), 1.570796), "asin(1) failed";
	assert floatCompare(asin(-0.5), -0.523599), "asin(-0.5) failed";
	assert floatCompare(asin(0), 0), "asin(0) failed";
}


// test acos
{
	assert floatCompare(acos(1), 0), "acos(1) failed";
	assert floatCompare(acos(0.5), 1.047198), "acos(0.5) failed";
	assert floatCompare(acos(0), 1.570796), "acos(0) failed";
}


// test atan
{
	assert floatCompare(atan(1), 0.785398), "acos(1) failed";
	assert floatCompare(atan(INFINITY), 1.570796), "atan(INFINITY) failed";
	assert floatCompare(atan(0), 0), "atan(0) failed";
}


// test atan2
{
	assert floatCompare(atans(0, 0), 0), "atan2(0, 0) failed";
	assert floatCompare(atans(7, 0), 1.570796), "atans(7, 0) failed";
}


// test isnan
{
	assert isnan(NAN) == true, "isnan(NAN) failed";
	assert isnan(INFINITY) == false, "isnan(INFINITY) failed";
	assert isnan(0.0) == false, "isnan(0.0) failed";
	// assert isnan(0 / 0) == true, "isnan(0 / 0) failed"; interpreter prevents dividing by 0
	assert isnan(INFINITY - INFINITY) == true, "isnan(INFINITY - INFINITY) failed";
}


// test floatCompare
{
	assert floatCompare(1, 1) == true, "floatCompare(1, 1) failed";
	assert floatCompare(1, 1.000001) == true, "floatCompare(1, 1.000001) failed";
	assert floatCompare(1, 1.001) == false, "floatCompare(1, 1.001) failed";
	assert floatCompare(0, 0) == true, "floatCompare(0, 0) failed";
}