def setUp(self):
self._context = FakeContext()
self._engine = DSLEngine(self._context)
class DSLEngineTests(unittest.TestCase):
"""Unit tests for the DSLRuntime class."""
def setUp(self):
self._context = FakeContext()
self._engine = DSLEngine(self._context)
def test_when_executing_assignment_operator_it_should_set_the_value_of_a_tag_by_name(self):
script = "val=334"
self._engine.execute(script)
self.assertEqual(334, self._context.get_tag_value("val"))
def test_when_executing_assignment_operator_it_should_set_the_value_of_a_tag_by_name2(self):
script = "valother=333"
self._engine.execute(script)
self.assertEqual(333, self._context.get_tag_value("valother"))
def test_when_executing_an_arithmetric_operation_it_should_set_its_value_to_the_tag(self):
script = "valother_test34=(333+5)"
self._engine.execute(script)
self.assertEqual(338, self._context.get_tag_value("valother_test34"))
def test_when_executing_a_nested_arithmetric_operation_it_should_set_its_value_to_the_tag(self):
script = "valother_test34=((20.2/2)+(5+(4/2)))"
self._engine.execute(script)
self.assertEqual(17.1, self._context.get_tag_value("valother_test34"))
def test_when_setting_a_tag_to_the_value_of_another_tag_it_should_copy_the_value(self):
self._context.set_tag_value("crap", 1000)
script = "new_val=crap"
self._engine.execute(script)
self.assertEqual(1000, self._context.get_tag_value("new_val"))
def test_when_setting_a_tag_to_the_value_of_an_expression_including_another_tag_it_should_set_the_computed_value(
self
):
self._context.set_tag_value("crap", 1000)
script = "new_val=(crap+3)"
self._engine.execute(script)
self.assertEqual(1003, self._context.get_tag_value("new_val"))
def test_can_set_tag_to_literal_string(self):
script = "new_val='whats up'"
self._engine.execute(script)
self.assertEqual("whats up", self._context.get_tag_value("new_val"))
def test_can_set_tag_to_concat_literal_string_and_tag_value(self):
self._context.set_tag_value("crap", "first")
script = "new_val=(crap + ' second')"
self._engine.execute(script)
self.assertEqual("first second", self._context.get_tag_value("new_val"))
def test_can_set_tag_to_concat_of_two_other_tags(self):
self._context.set_tag_value("crap", "first")
self._context.set_tag_value("other", "segundo")
script = "new_val=(crap + (' ' + other))"
self._engine.execute(script)
self.assertEqual("first segundo", self._context.get_tag_value("new_val"))
def test_can_print_all_tags(self):
script = "?"
self._engine.execute(script)
self.assertEqual(1, self._context.printed_tag_times)
