def test_append(self):
#Test appending good value
values = ["bob", "steve"]
tcl = Structs.TypeCheckedList(str, values=values,
suppress_type_errors=True)
tcl.append("jack")
actual = len(tcl)
expected = 3
self.assertTrue(actual == expected)
#Test appending bad value, suppression on
values = ["bob", "steve"]
tcl = Structs.TypeCheckedList(str, values=values,
suppress_type_errors=True)
tcl.append(3)
actual = len(tcl)
expected = 2
self.assertTrue(actual == expected)
#Test appending bad value, suppression off
values = ["bob", "steve"]
tcl = Structs.TypeCheckedList(str, values=values,
suppress_type_errors=False)
with self.assertRaises(TypeError):
tcl.append(3)
def test_extend(self):
#Test extend with empty iterable
values = ["bob", "steve"]
tcl = Structs.TypeCheckedList(str, values=values,
suppress_type_errors=True)
tcl.extend([])
actual = len(tcl)
expected = 2
self.assertTrue(actual == expected)
#Test extend with a non-iterable
values = ["bob", "steve"]
tcl = Structs.TypeCheckedList(str, values=values,
suppress_type_errors=True)
tcl.extend("jack")
actual = len(tcl)
expected = 3
self.assertTrue(actual == expected)
#Test extend with all valid
values = ["bob", "steve"]
tcl = Structs.TypeCheckedList(str, values=values,
suppress_type_errors=True)
tcl.extend(values)
actual = len(tcl)
expected = 4
self.assertTrue(actual == expected)
#Test extend with some invalid, suppressed
values = ["bob", "steve"]
tcl = Structs.TypeCheckedList(str, values=values,
suppress_type_errors=True)
tcl.extend(["jack", 3])
actual = len(tcl)
expected = 3
self.assertTrue(actual == expected)
#Test extend with some invalid, not suppressed
values = ["bob", "steve"]
tcl = Structs.TypeCheckedList(str, values=values,
suppress_type_errors=False)
with self.assertRaises(TypeError):
tcl.extend(["jack", 3])
def test_init(self):
#Test empty constructor
empty_tcl = Structs.TypeCheckedList(int, values=None,
suppress_type_errors=True)
actual = len(empty_tcl)
expected = 0
self.assertTrue(actual == expected)
#Test constructor with values
values = [1, 2, 3, 'bob']
tcl = Structs.TypeCheckedList(int, values=values,
suppress_type_errors=True)
actual = len(tcl)
expected = 3
self.assertTrue(actual == expected)
#Test bad extend with no TypeError suppression
values = [1, 2, 3, 'bob']
with self.assertRaises(TypeError):
tcl = Structs.TypeCheckedList(int, values=values,
suppress_type_errors=False)
def test_clear(self):
values = ["bob", "steve"]
tcl = Structs.TypeCheckedList(str, values=values,
suppress_type_errors=True)
tcl.append("jack")
actual = len(tcl)
expected = 3
self.assertTrue(actual == expected)
tcl.clear()
actual = len(tcl)
expected = 0
self.assertTrue(actual == expected)
