def test_simple_tokens(self):
input = "=+-,(){};"
tests = [
Token(TokenType.ASSIGN, "="),
Token(TokenType.PLUS, '+'),
Token(TokenType.MINUS, '-'),
Token(TokenType.COMMA, ','),
Token(TokenType.LPAREN, '('),
Token(TokenType.RPAREN, ')'),
Token(TokenType.LBRACE, '{'),
Token(TokenType.RBRACE, '}'),
Token(TokenType.SEMICOLON, ';'),
]
lexer_obj = Lexer(input)
for t in tests:
token = lexer_obj.next_token()
self.assertEqual(token.type, t.type)
self.assertEqual(token.literal, t.literal)
