a = 3;
b = 6;
c = 2;
d = (c + 9);
assert(true);
assert("t1");
assert((a * b));
assert(condition = (a * b));
assert(true) cube(8, center = true);
translate([0, 20, 0]) assert(condition = 2) sphere(5);
assert(condition = ((d + 5) > 15), message = str("value: ", (d + 5))) translate([15, 0, 0]) cylinder(8, 5, center = true);
echo("assert-tests");
