def test_insert_when_single_element_in_myarray(self):
# Arrange
myarray = MyArray('i', 20)
# Act
myarray.insert(0, 100)
# Assert
self.assertEqual(2, myarray.size())
self.assertEqual(100, myarray.get(0))
self.assertEqual(20, myarray.get(1))
def test_insert_when_empty_myarray(self):
#Arrange
myarray = MyArray('i')
self.assertEqual(0, myarray.size())
# Act
myarray.insert(0, 100)
# Assert
self.assertEqual(1, myarray.size())
self.assertEqual(100, myarray.get(0))
def test_insert_when_more_than_one_element_in_myarray(self):
# Arrange
myarray = MyArray('i', 20, 30)
# Act
myarray.insert(0, 100)
# Assert
self.assertEqual(3, myarray.size())
self.assertEqual(100, myarray.get(0))
self.assertEqual(20, myarray.get(1))
self.assertEqual(30, myarray.get(2))