def make_tokenizer(text, should_resolve=True, **kwargs):
reader = Reader(StringIO(text))
variable = EnvironmentVariable(kwargs)
expanding = Expansion(reader, variable)
tokenizer = MathTokenizer(At("", -1, -1), reader, expanding,
should_resolve)
return tokenizer
def test_expand_math_neg_number_2(self):
expanding = make_expanding("($A * ---4)!", A="-4")
self.assertEqual("16", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_with_quotes(self):
expanding = make_expanding("{A:sql,attr}!", A="ab'\"cd")
self.assertEqual("ab''"cd", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_math_precedence_op(self):
expanding = make_expanding("(4/3*0)!")
self.assertEqual("0", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_math_neg_number_1(self):
expanding = make_expanding("(- 4)!")
self.assertEqual("-4", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_math_nested_paren(self):
expanding = make_expanding("( ( $A ) )!", A="321")
self.assertEqual("321", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_math_precedence_op(self):
expanding = make_expanding("($A+3*4)!", A="321")
self.assertEqual("333", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_with_nested_resolved(self):
expanding = make_expanding("{FOO|12${ABC}3}!", FOO="BAR")
self.assertEqual("BAR", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_math(self):
expanding = make_expanding("(123)!")
self.assertEqual("123", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_with_default_resolvable(self):
expanding = make_expanding("{FOO|12\\}3}!", FOO="BAR")
self.assertEqual("BAR", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_with_default_quoted(self):
expanding = make_expanding("{ABC|12\\}3}!", FOO="BAR")
self.assertEqual("12}3", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_with_nothing_special(self):
expanding = make_expanding("{FOO}!", FOO="BAR")
self.assertEqual("BAR", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
def test_expand_simple_missing_value(self):
expanding = make_expanding("ABC!", FOO="BAR")
self.assertRaises(Exception, expanding.expand, At("", -1, -1))
def test_expand_simple(self):
expanding = make_expanding("FOO!", FOO="BAR")
self.assertEqual("BAR", expanding.expand(At("", -1, -1)))
self.assertEqual("!", expanding._reader.get())
self.assertRaises(Exception, expanding.expand, At("", -1, -1))
