class InterpreterTest(unittest.TestCase):
def setUp(self):
self.interpreter = Interpreter()
def test_basic(self):
"""Check if interpreting with the initial version works."""
self.check_result(BASIC_CODE, BASIC_RESULT_SHOULD)
def test_comparison_operators(self):
"""
Check if the following comparison operators work:
- <
- >
- ==
- <=
- >=
- !=
This test fails until you add support for this operators in the
parser and the evaluator.
"""
self.check_result(COMPARISON_OPERATORS_CODE, COMPARISON_RESULT_SHOULD)
def test_negative_integers(self):
"""
Check if code containing negative integers work., e.g. '1 + -2'
This test fails until you add support for negative integers in the
parser, javali_ast and the evaluator.
"""
self.check_result(NEGATIVE_INTEGERS_CODE, NEGATIVES_RESULT_SHOULD)
def test_if_stmt(self):
"""
Check if if statements of the following form work:
if (1 < 2) {
put(1)
} else {
put(2)
}
The else block is optional:
if (1 < 2) {
put(1)
}
This test fails until you add support for if-statements in the
parser, javali_ast and the evaluator.
"""
self.check_result(IF_STMT_CODE, IF_STMT_RESULT_SHOULD)
def check_result(self, code, result_should):
"""
Helper for interpreting javali 'code' and comparing the result of the
interpreter to 'result_should'.
"""
self.interpreter.interprete_code(code)
self.assertEqual(self.interpreter.get_result(), result_should)
