Home » Python » PYTHON Testing and Debugging

PYTHON Testing and Debugging MCQs

  1. Which built in module is used for unit testing in Python?
    a) unittest
    b) pytest
    c) doctest
    d) None
    View Answer

    Correct answer: A — unittest

  2. What will be printed?
    1 python
    2 import unittest
    3 print(hasattr(unittest,"TestCase"))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  3. Which class is used to create test cases in unittest?
    a) TestCase
    b) TestSuite
    c) TestLoader
    d) None
    View Answer

    Correct answer: A — TestCase

  4. What is the output of below code?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_add(self):
    5 self.assertEqual(2+3,5)
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  5. Which method checks equality in unittest?
    a) assertEqual()
    b) assertTrue()
    c) assertFalse()
    d) None
    View Answer

    Correct answer: A — assertEqual()

  6. What will be printed?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 self.assertEqual("Eduinq","Eduinq")
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  7. Which method checks boolean true in unittest?
    a) assertTrue()
    b) assertFalse()
    c) assertEqual()
    d) None
    View Answer

    Correct answer: A — assertTrue()

  8. What is the output of below code?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 self.assertTrue(5>2)
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  9. Which method checks boolean false in unittest?
    a) assertFalse()
    b) assertTrue()
    c) assertEqual()
    d) None
    View Answer

    Correct answer: A — assertFalse()

  10. What will be printed?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 self.assertFalse(2>5)
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  11. Which method checks if object is None?
    a) assertIsNone()
    b) assertIsNotNone()
    c) assertEqual()
    d) None
    View Answer

    Correct answer: A — assertIsNone()

  12. What is the output of below code?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 self.assertIsNone(None)
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  13. Which method checks if object is not None?
    a) assertIsNotNone()
    b) assertIsNone()
    c) assertEqual()
    d) None
    View Answer

    Correct answer: A — assertIsNotNone()

  14. What will be printed?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 self.assertIsNotNone("Eduinq")
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  15. Which method checks if two objects are same?
    a) assertIs()
    b) assertEqual()
    c) assertSame()
    d) None
    View Answer

    Correct answer: A — assertIs()

  16. What is the output of below code?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 a = b = "Eduinq"
    6 self.assertIs(a,b)
    7 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  17. Which method checks if two objects are not same?
    a) assertIsNot()
    b) assertEqual()
    c) assertSame()
    d) None
    View Answer

    Correct answer: A — assertIsNot()

  18. What will be printed?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 self.assertIsNot("Eduinq","Eduinq2")
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  19. Which method checks if exception is raised?
    a) assertRaises()
    b) assertError()
    c) assertException()
    d) None
    View Answer

    Correct answer: A — assertRaises()

  20. What is the output of below code?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 with self.assertRaises(ZeroDivisionError):
    6 1/0
    7 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  21. Which method checks if two values are not equal in unittest?
    a) assertNotEqual()
    b) assertEqual()
    c) assertFalse()
    d) None
    View Answer

    Correct answer: A — assertNotEqual()

  22. What will be printed?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 self.assertNotEqual(5,6)
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  23. Which method checks if object is instance of class?
    a) assertIsInstance()
    b) assertEqual()
    c) assertTrue()
    d) None
    View Answer

    Correct answer: A — assertIsInstance()

  24. What is the output of below code?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 self.assertIsInstance("Eduinq",str)
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  25. Which method checks if object is not instance of class?
    a) assertNotIsInstance()
    b) assertIsInstance()
    c) assertEqual()
    d) None
    View Answer

    Correct answer: A — assertNotIsInstance()

  26. What will be printed?
    1 python
    2 import unittest
    3 class MyTest(unittest.TestCase):
    4 def test_val(self):
    5 self.assertNotIsInstance(5,str)
    6 (Running test)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  27. Which of the following is used to group tests in unittest?
    a) TestSuite
    b) TestCase
    c) TestLoader
    d) None
    View Answer

    Correct answer: A — TestSuite

  28. What is the output of below code?
    1 python
    2 import unittest
    3 suite = unittest.TestSuite()
    4 print(isinstance(suite,unittest.TestSuite))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  29. Which of the following is used to discover tests in unittest?
    a) TestLoader
    b) TestSuite
    c) TestCase
    d) None
    View Answer

    Correct answer: A — TestLoader

  30. What will be printed?
    1 python
    2 import unittest
    3 loader = unittest.TestLoader()
    4 print(hasattr(loader,"discover"))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  31. Which of the following is used to run tests in unittest?
    a) TextTestRunner
    b) TestLoader
    c) TestCase
    d) None
    View Answer

    Correct answer: A — TextTestRunner

  32. What is the output of below code?
    1 python
    2 import unittest
    3 runner = unittest.TextTestRunner()
    4 print(callable(runner.run))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  33. Which of the following is a third party testing framework in Python?
    a) pytest
    b) unittest
    c) doctest
    d) None
    View Answer

    Correct answer: A — pytest

  34. What will be printed?
    1 python
    2 import pytest
    3 print(pytest.__name__)
    a) pytest
    b) Error
    c) None
    d) test
    View Answer

    Correct answer: A — pytest

  35. Which of the following is pytest's naming convention for test functions?
    a) test_*
    b) *_test
    c) testCase_*
    d) None
    View Answer

    Correct answer: A — test_*

  36. What is the output of below code?
    1 python
    2 def test_val():
    3 assert 2+3==5
    4 (Running with pytest)
    a) Pass
    b) Fail
    c) Error
    d) None
    View Answer

    Correct answer: A — Pass

  37. Which of the following is used for fixtures in pytest?
    a) @pytest.fixture
    b) @pytest.setup
    c) @pytest.teardown
    d) None
    View Answer

    Correct answer: A — @pytest.fixture

  38. What will be printed?
    1 python
    2 import pytest
    3 print(hasattr(pytest,"fixture"))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  39. Which of the following is used for parameterized tests in pytest?
    a) @pytest.mark.parametrize
    b) @pytest.parameter
    c) @pytest.args
    d) None
    View Answer

    Correct answer: A — @pytest.mark.parametrize

  40. What is the output of below code?
    1 python
    2 import pytest
    3 print(hasattr(pytest.mark,"parametrize"))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  41. Which of the following is used for skipping tests in pytest?
    a) @pytest.mark.skip
    b) @pytest.skip
    c) @pytest.ignore
    d) None
    View Answer

    Correct answer: A — @pytest.mark.skip

  42. What will be printed?
    1 python
    2 import pytest
    3 print(hasattr(pytest.mark,"skip"))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  43. Which of the following is used for expected failure in pytest?
    a) @pytest.mark.xfail
    b) @pytest.fail
    c) @pytest.error
    d) None
    View Answer

    Correct answer: A — @pytest.mark.xfail

  44. What is the output of below code?
    1 python
    2 import pytest
    3 print(hasattr(pytest.mark,"xfail"))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  45. Which of the following is used for debugging in Python?
    a) pdb
    b) unittest
    c) pytest
    d) None
    View Answer

    Correct answer: A — pdb

  46. What will be printed?
    1 python
    2 import pdb
    3 print(callable(pdb.set_trace))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  47. Which of the following is used for doctest in Python?
    a) doctest
    b) unittest
    c) pytest
    d) None
    View Answer

    Correct answer: A — doctest

  48. What is the output of below code?
    1 python
    2 import doctest
    3 print(hasattr(doctest,"testmod"))
    a) True
    b) False
    c) Error
    d) None
    View Answer

    Correct answer: A — True

  49. Which of the following is used for coverage in Python testing?
    a) coverage.py
    b) pytest
    c) unittest
    d) None
    View Answer

    Correct answer: A — coverage.py

  50. What will be printed?
    1 bash
    2 coverage run -m pytest
    a) Runs tests with coverage
    b) Error
    c) None
    d) coverage only
    View Answer

    Correct answer: A — Runs tests with coverage

Quick Links to Explore