import "std/queue.zc"

test "Queue Push/Pop" {
  print "Testing Queue Push/Pop";
  var queue = Queue<i32>::new();
  defer queue.free();

  print "Popping on an empty queue without pushing anything prior"
  var v = queue.pop();
  assert(v.is_none(), "v should not have a valid value");

  print "Pushing in three values..."
  queue.push(123);
  queue.push(456);
  queue.push(789);
  
  v = queue.pop();
  assert(v.is_some() && v.unwrap() == 123, "v's value should be 123");

  v = queue.pop();
  assert(v.is_some() && v.unwrap() == 456, "v's value should be 456");

  v = queue.pop();
  assert(v.is_some() && v.unwrap() == 789, "v's value should be 789");

  print "Popping on an empty queue after pushing and popping three values"
  v = queue.pop();
  assert(v.is_none(), "v should not have a valid value");
}

test "Queue Clone" {
  print "Testing Queue Cloning";
  var queue = Queue<i32>::new();
  defer queue.free();
  queue.push(123);
  var queue2 = queue.clone();
  defer queue2.free();

  var v = queue2.pop();
  assert(v.is_some() && v.unwrap() == 123, "v's value should be 123");
  v = queue2.pop();
  assert(v.is_none(), "v should not have a valid value");

  v = queue.pop();
  assert(v.is_some() && v.unwrap() == 123, "v's value should be 123");
  v = queue.pop();
  assert(v.is_none(), "v should not have a valid value");
}