class TextTests(unittest.TestCase):
def setUp(self):
self.gapbuffer = GapBuffer()
def tearDown(self):
pass
def test_empty_buffer_gives_empty_text(self):
self.assertEqual("", self.gapbuffer.get_text())
class DeleteTests(unittest.TestCase):
def setUp(self):
self.gapbuffer = GapBuffer()
def test_deleting_single_character(self):
self.gapbuffer.insert("a")
self.gapbuffer.delete()
self.assertEqual("", self.gapbuffer.get_text())
def test_deleting_multiple_characters(self):
self.gapbuffer.insert("abcd")
self.gapbuffer.delete()
self.gapbuffer.delete()
self.assertEqual("ab", self.gapbuffer.get_text())
def test_delete_after_moving_cursor(self):
self.gapbuffer.insert("abcd")
self.gapbuffer.move_cursor_backward(2)
self.gapbuffer.delete()
self.assertEqual("acd", self.gapbuffer.get_text())
def test_cursor_has_correct_position_after_single_delete(self):
self.gapbuffer.insert("abc")
self.gapbuffer.delete()
self.assertEqual(2, self.gapbuffer.get_cursor_position())
def test_cursor_has_correct_position_after_multiple_delete(self):
self.gapbuffer.insert("abc")
self.gapbuffer.delete()
self.gapbuffer.delete()
self.assertEqual(1, self.gapbuffer.get_cursor_position())
def test_cursor_has_correct_position_after_being_moved_and_delete(self):
self.gapbuffer.insert("abcd")
self.gapbuffer.move_cursor_backward(2)
self.gapbuffer.delete()
self.assertEqual(1, self.gapbuffer.get_cursor_position())
class InsertTests(unittest.TestCase):
def setUp(self):
self.gapbuffer = GapBuffer()
def tearDown(self):
pass
def test_insert_one_character(self):
self.gapbuffer.insert('a')
self.assertEqual("a", self.gapbuffer.get_text())
def test_insert_one_characterAsString(self):
self.gapbuffer.insert("a")
self.assertEqual("a", self.gapbuffer.get_text())
def test_insert_multiple_character(self):
self.gapbuffer.insert('a')
self.gapbuffer.insert('b')
self.gapbuffer.insert('c')
self.assertEqual("abc", self.gapbuffer.get_text())
def test_insert_with_multi_character_string(self):
self.gapbuffer.insert("abc")
self.assertEqual("abc", self.gapbuffer.get_text())
def test_insert_with_one_special_character(self):
self.gapbuffer.insert('\n')
self.assertEqual('\n', self.gapbuffer.get_text())
def test_insert_With_multiple_special_characters(self):
self.gapbuffer.insert('\t')
self.gapbuffer.insert('\n')
self.assertEqual("\t\n", self.gapbuffer.get_text())
def test_insert_with_multiple_special_character_string(self):
self.gapbuffer.insert("\t\n")
self.assertEqual("\t\n", self.gapbuffer.get_text())
def test_insert_on_correct_sized_buffer(self):
self.gapbuffer = GapBuffer(6)
self.gapbuffer.insert("hell\no")
self.assertEqual("hell\no", self.gapbuffer.get_text())
def test_inser_on_incorrectly_sized_buffer(self):
self.gapbuffer = GapBuffer(2)
self.gapbuffer.insert("hell\no")
self.assertEqual("hell\no", self.gapbuffer.get_text())
def testCursorHasCorrectPositionAfterInsert(self):
self.assertEqual(0, self.gapbuffer.get_cursor_position())
self.gapbuffer.insert('a')
self.assertEqual(1, self.gapbuffer.get_cursor_position())
def test_cursor_has_correct_position_after_multiple_inserts(self):
self.assertEqual(0, self.gapbuffer.get_cursor_position())
self.gapbuffer.insert('a')
self.gapbuffer.insert('b')
self.assertEqual(2, self.gapbuffer.get_cursor_position())
def test_cursor_has_correct_position_after_insert_in_middle_of_buffer(
self):
self.gapbuffer.insert("abef")
self.gapbuffer.move_cursor_backward(2)
self.gapbuffer.insert("cd")
self.assertEqual(4, self.gapbuffer.get_cursor_position())
def test_cursor_has_correct_position_after_multi_character_string_insert(
self):
self.assertEqual(0, self.gapbuffer.get_cursor_position())
self.gapbuffer.insert("abc")
self.assertEqual(3, self.gapbuffer.get_cursor_position())
def test_insert_in_middle_of_buffer_after_moving_cursor(self):
self.gapbuffer.insert("acd")
self.gapbuffer.move_cursor_backward(2)
self.gapbuffer.insert('b')
self.assertEqual("abcd", self.gapbuffer.get_text())
def test_insert_at_start_of_buffer_after_moving_cursor(self):
self.gapbuffer.insert("bcd")
self.gapbuffer.move_cursor_backward(3)
self.gapbuffer.insert('a')
self.assertEqual("abcd", self.gapbuffer.get_text())
