def test_set_point_with_valid_coordinates(self):
"""
Test that a point on the screen can be set with a value
"""
test_screen = Screen(2, 2)
test_screen.set_point(1, 1, "#")
expected_point = "#"
actual_point = test_screen.get_point(1, 1)
self.assertEqual(expected_point, actual_point)
def test_draw_line_horizontally_with_valid_coordinates(self):
"""
A test that a horizontal line can be drawn
"""
screen = Screen(3, 3)
ScreenHelper.draw_line(screen, 0, 0, 0, 1, "#")
expected_screen = Screen(3, 3)
expected_screen.set_point(0, 0, "#")
expected_screen.set_point(0, 1, "#")
self.assertListEqual(screen.get_matrix(), expected_screen.get_matrix())
def test_draw_line_diagonally_with_valid_coordinates(self):
"""
A test that a diagonal line can be drawn
"""
screen = Screen(4, 4)
ScreenHelper.draw_line(screen, 1, 1, 2, 2, "#")
expected_screen = Screen(4, 4)
expected_screen.set_point(1, 1, "#")
expected_screen.set_point(2, 2, "#")
self.assertListEqual(screen.get_matrix(), expected_screen.get_matrix())
def test_get_matrix(self):
"""
Test that the screen returns the correct matrix
"""
test_screen = Screen(2, 2)
test_screen.set_point(0, 0, "1")
test_screen.set_point(1, 0, "2")
test_screen.set_point(0, 1, "3")
test_screen.set_point(1, 1, "4")
actual_matrix = test_screen.get_matrix()
expected_matrix = [["1", "2"], ["3", "4"]]
self.assertListEqual(expected_matrix, actual_matrix)