class Test

	def main
		.testDuplicateMember
		.testSetErrors
	
	def testDuplicateMember
		t = {1, 2, 2}  # .warning. Duplicate member in set.
		assert 1 in t
		assert 2 in t
		t = {1, 2, 1}  # .warning. Duplicate member in set.
		assert 1 in t

	def testSetErrors
		# Set<of int>
		s = {1, 2, 3}
			
		s.add('aoeu')  # .error. expects type int