def test_read():
"""
To test command_read method
:return: Test result
"""
# test case 1: read a file into editor
print("Testing read......")
test_case_1 = Editor()
test_case_1.command_read('text.txt')
assert test_case_1 is not None, "Read method does not work as expect!"
print("Test 1 succeed!")
def test_print():
"""
To test command_print method
:return: Test result
"""
print("Testing print......")
test_case = Editor()
# test case 1: print a line of text in the editor
test_case.command_read('text.txt')
try:
test_case.command_print(0)
except:
print("method does not work as expect!")
def test_insert():
"""
To test command_insert method
:return: Test result
"""
print("Testing insert......")
test_case = Editor()
# test case 1: insert a text into the list
test_case.command_read('text.txt')
test_case.command_insert(1)
assert test_case.list[
1] == 'hello', "Insert method does not work as expect!"
test_case.command_print('')
def test_delete():
"""
To test command_delete method
:return: Test result
"""
print("Testing delete......")
test_case = Editor()
# case 1 : delete a line of text in the editor
test_case.command_read('text.txt')
origin_text = test_case.list[0]
test_case.command_delete('0')
final_text = test_case.list[0]
assert origin_text != final_text, "Delete method does not work!"
def test_read_fail():
# test case 2 : read a file that does not exist
test_case_2 = Editor()
test_case_2.command_read('N/A.text')