class Test

	def main is shared

		t as IDictionary<of String, String> = Dictionary<of String, String>()
		assert t.count==0
		assert not t.count
		t.add('a', 'b')
		assert t.count==1
		assert t['a']=='b'
		for key as String in t.keys
			assert key.length
		for value1 as String in t.values
			assert value1.length
			
		u as IDictionary<of String, int> = Dictionary<of String, int>()
		u.add('a', 1)
		u.add('b', 2)
		assert u.count==2
		assert u['a']==1
		assert u['b']==2
		for key as String in u.keys
			assert key.length
		for value2 as int in u.values
			assert value2