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class BaseTest:
# Custom assert methods implementation
def assertIsNotNone(self, value, msg=None):
"""Assert that value is not None"""
if value is None:
raise AssertionError(msg or f"Expected not None, but got None")
def assertEqual(self, first, second, msg=None):
"""Assert that first equals second"""
if first != second:
raise AssertionError(msg or f"Expected {first} == {second}, but {first} != {second}")
def assertTrue(self, expr, msg=None):
"""Assert that expr is True"""
if not expr:
raise AssertionError(msg or f"Expected True, but got {expr}")
def assertFalse(self, expr, msg=None):
"""Assert that expr is False"""
if expr:
raise AssertionError(msg or f"Expected False, but got {expr}")
def assertAlmostEqual(self, first, second, places=7, msg=None):
"""Assert that first and second are approximately equal"""
if round(abs(second - first), places) != 0:
raise AssertionError(msg or f"Expected {first} ~= {second} (within {places} decimal places)")
def assertIs(self, first, second, msg=None):
"""Assert that first is second (same object identity)"""
if first is not second:
raise AssertionError(msg or f"Expected {first} is {second}, but they are different objects")
def assertIn(self, member, container, msg=None):
"""Assert that member is in container"""
if member not in container:
raise AssertionError(msg or f"Expected {member} in {container}")
def assertIsInstance(self, obj, cls, msg=None):
"""Assert that obj is an instance of cls"""
if not isinstance(obj, cls):
raise AssertionError(msg or f"Expected {obj} to be instance of {cls}, but got {type(obj)}")
def assertIsNone(self, value, msg=None):
"""Assert that value is None"""
if value is not None:
raise AssertionError(msg or f"Expected None, but got {value}")
def assertNotEqual(self, first, second, msg=None):
"""Assert that first does not equal second"""
if first == second:
raise AssertionError(msg or f"Expected {first} != {second}, but they are equal")
def assertGreater(self, first, second, msg=None):
"""Assert that first is greater than second"""
if not first > second:
raise AssertionError(msg or f"Expected {first} > {second}")
def assertLess(self, first, second, msg=None):
"""Assert that first is less than second"""
if not first < second:
raise AssertionError(msg or f"Expected {first} < {second}")
def assertGreaterEqual(self, first, second, msg=None):
"""Assert that first is greater than or equal to second"""
if not first >= second:
raise AssertionError(msg or f"Expected {first} >= {second}")
def assertLessEqual(self, first, second, msg=None):
"""Assert that first is less than or equal to second"""
if not first <= second:
raise AssertionError(msg or f"Expected {first} <= {second}")
def assertNotIn(self, member, container, msg=None):
"""Assert that member is not in container"""
if member in container:
raise AssertionError(msg or f"Expected {member} not in {container}")
def assertIsNot(self, first, second, msg=None):
"""Assert that first is not second (different object identity)"""
if first is second:
raise AssertionError(msg or f"Expected {first} is not {second}, but they are the same object")
def assertRaises(self, exception_class, callable_obj=None, *args, **kwargs):
"""Assert that calling callable_obj raises exception_class"""
if callable_obj is None:
# Return a context manager for use with 'with' statement
return self._AssertRaisesContext(exception_class)
else:
try:
callable_obj(*args, **kwargs)
raise AssertionError(f"Expected {exception_class.__name__} to be raised, but no exception was raised")
except exception_class:
pass # Expected exception was raised
except Exception as e:
raise AssertionError(f"Expected {exception_class.__name__} to be raised, but got {type(e).__name__}: {e}")
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