def test_string_append(self):
context = Context()
parse(shell % 'x = "a";\nx = x + x;').execute(context)
self.assertEqual(context.root_frame.values["x"], "aa")
context = Context()
parse(shell % 'x = "a" + "b" + "c";').execute(context)
self.assertEqual(context.root_frame.values["x"], "abc")
with self.assertRaises(ParseException):
context = Context()
parse(shell % 'x = "a" + 1;').execute(context)
self.assertEqual(context.root_frame.values["x"], "abc")
def test_comments(self):
context = Context()
parse(shell % 'x = 1000; x = x * -0.1; x = x + 10; x = x - 1;').execute(context)
self.assertEqual(context.root_frame.values["x"], -91.0)
context = Context()
parse(shell % 'x = 1000; x = x * -0.1; /* x = x + 10; */ x = x - 1;').execute(context)
self.assertEqual(context.root_frame.values["x"], -101.0)
context = Context()
parse(shell % 'x = 1000; x = x * -0.1; # x = x + 10; \n x = x - 1;').execute(context)
self.assertEqual(context.root_frame.values["x"], -101.0)
context = Context()
parse(shell % 'x = 1000; x = x * -0.1; // x = x + 10; \n x = x - 1;').execute(context)
self.assertEqual(context.root_frame.values["x"], -101.0)
def index():
data = request.get_json()
res = {}
context = Context()
try:
parse(data["code"]).execute(context)
except ParseException as err:
res["error"] = {"lineno": err.lineno, "col": err.col, "message": str(err)}
except StackException as err:
res["error"] = {"lineno": 1, "col": 0, "message": "Stack limit exceeded."}
except IterationException as err:
res["error"] = {"lineno": 1, "col": 0, "message": "Iteration limit exceeded."}
else:
res["nodes"] = build_nodes(context.root_frame)
return res
def test_array_reference(self):
context = Context()
parse(shell % 'x = ["a"] + ["a"]; x = x[1];').execute(context)
self.assertEqual(context.root_frame.values["x"], "a")
def test_array_add(self):
context = Context()
parse(shell % 'x = ["a"] + ["a"];').execute(context)
self.assertEqual(context.root_frame.values["x"], ["a", "a"])
def test_if_then_else(self):
context = Context()
parse(shell % 'x = 1000; if (x < 10) { x = x * 100; } else { x = x / 100; }').execute(context)
self.assertEqual(context.root_frame.values["x"], 10.0)
def test_evaluate_numbers(self):
context = Context()
parse(shell % 'x = 1000; x = x * -0.1;').execute(context)
self.assertEqual(context.root_frame.values["x"], -100.0)
def test_array_append(self):
context = Context()
parse(shell % 'x = []; x.append("a");').execute(context)
self.assertEqual(context.root_frame.values["x"], ["a"])