//test operators (integers)
assert 1 + 1 == 2, "1 + 1 == 2";
assert 1 - 1 == 0, "1 - 1 == 0";
assert 2 * 2 == 4, "2 * 2 == 4";
assert 1 / 2 == 0, "1 / 2 == 0"; //integer division
assert 5 % 2 == 1, "5 % 2 == 1";

//test operators (floats)
assert 1.0 + 1.0 == 2.0, "1.0 + 1.0 == 2.0";
assert 1.0 - 1.0 == 0.0, "1.0 - 1.0 == 0.0";
assert 2.0 * 2.0 == 4.0, "2.0 * 2.0 == 4.0";
assert 1.0 / 2.0 == 0.5, "1.0 / 2.0 == 0.5";


var a = 10;

a += 20;
a -= 25;

assert a == 5, "+= or -= failed";

a *= 5;
a /= 2;

assert a == 12, "*= or /= failed";

a %= 8;

assert a == 4, "%= failed";

//strings as special cases
var s = "foo";

assert s + "bar" == "foobar", "string addition failed";
assert s == "foo", "string addition failed (was too sticky)";

s += "bar";

assert s == "foobar", "string addition failed (wasn't sticky enough)";

//check order of operations
assert 30 / 3 * 2 == 20, "Order of operations failed (raw numbers)";
var x = 30;
var y = 3;
var z = 2;
assert x / y * z == 20, "Order of operations failed (variables)";


print "All good";