Top 50 Python Automation Testing Interview Questions for 2024

If you aim to land a procedure in automation checking out with Python, you are in the proper vicinity. Python is a popular language for automation as it’s effective, clean to analyse, and widely used inside the enterprise. To assist you in preparing for your interview, we’ve compiled a list of fifty commonplace Python automation checking out interview questions and solutions. This manual will help you recognise what to expect and a way to reply correctly.

1. What is Python automation checking out?

Answer: Python automation uses Python scripts to test software program packages mechanically. Instead of walking assessments manually, Python scripts execute the tests, test the consequences, and file any troubles.

2. Why is Python an excellent desire for automation trying out?

Answer: Python is right for automation as it’s simple and readable. It has powerful libraries and frameworks for trying out, like PyTest and Selenium, which make it easier to jot down and manipulate exams.

3. What are a few popular Python trying out frameworks?

Answer: Some famous Python testing frameworks encompass:

• PyTest: A powerful framework for writing easy and scalable test cases.
• Unittest: Built into Python, it provides a way to create and run exams.
• Nose2: An extension of Unittest with additional features.
• Robot Framework: A keyword-driven framework for acceptance testing.

4. How do you put in PyTest?

Answer: You can set up PyTest for the usage of pip, which is Python’s package installer. Run the following command in your terminal or command activate:

pip install pytest

5. What is a check case?

Answer: A test case is a hard and fast of situations or variables used to decide if a software software behaves as predicted. It consists of inputs, execution situations, and the predicted end result.

6. What is the distinction between assert and pytest.Raises?

Answer: assert is used to affirm that a condition is actual. If it’s now not genuine, the check fails. Pytest.Raises are used to test if a specific exception is raised through the check.

7. How do you write an easy take a look at case the usage of PyTest?

Answer: To write an easy take-look at the case in PyTest, you create a Python characteristic that starts evolved with test_ and use assert statements to check conditions. Here’s an instance:

def test_addition():

    assert 1   1 == 2

8. What is Selenium?

Answer: Selenium is a tool for automating net browsers. It allows you to write down scripts that can manage browser actions like clicking buttons and getting into textual content.

9. How do you put in Selenium for Python?

Answer: You can deploy Selenium with the use of pip. Run:

pip installation selenium

10. What is a WebDriver in Selenium?

Answer: WebDriver is an interface in Selenium that permits you to interact with a web browser programmatically. It controls the browser’s behaviour and can perform movements like clicking and typing.

11. How do you use WebDriver to open a webpage?

Answer: Here’s an example of the way to use WebDriver to open a website:

from selenium import web driver

driver = webdriver.Chrome()  # or webdriver.Firefox(), and so forth.

Motive force.Get(“http://example.Com”)

12. What are locators in Selenium?

Answer: Locators are used to discover elements on a web web page. Common locators encompass ID, call, elegance call, tag name, CSS selector, and XPath.

13. How do you discover an element using ID the use of Selenium?

Answer: You can find an element using ID the use of the subsequent code:

element = motive force.Find_element_by_id(“element_id”)

14. What is the difference between find_element_by_id and find_elements_by_id?

Answer: find_element_by_id returns a single net element, while find_elements_by_id returns a listing of elements with the given ID. However, because IDs should be particular, find_elements_by_id will commonly go back to an empty list or a listing with one detail.

15. What are implicit waits in Selenium?

Answer: Implicit waits inform the WebDriver to watch for a sure quantity of time whilst attempting to find an element if it’s not at once to be had. This helps control timing troubles in your assessments.

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16. How do you cope with dropdowns in Selenium?

Answer: To manage dropdowns, you may use the Select magnificence from selenium.Webdriver.Guide. Ui. Here’s an example:

from selenium.Webdriver.Aid.Ui import Select

select = Select(driver.Find_element_by_id(‘dropdown_id’))
pick.Select_by_visible_text(‘Option Text’)

17. What is the Robot Framework?

Answer: Robot Framework is an open-supply automation testing framework that makes use of keywords to explain check cases. It is suitable for each reputation trying out and acceptance check-driven development (ATDD).

18. How do you install Robot Framework?

Answer: Install Robot Framework with the use of pip:

pip install robot framework

19. What is a check suite in Robot Framework?

Answer: A take-a-look-at suite is a set of take-a-look-at instances. It facilitates arranging and managing multiple check instances and executes them together.

20. How do you run tests in Robot Framework?

Answer: You can run assessments with the use of the robotic command accompanied by the test document called:

robot test_file.Robotic

21. What is a PyTest fixture?

Answer: A fixture in PyTest is a characteristic that offers setup and teardown code in your exams. It helps put together the check environment and clean up after tests.

22. How do you outline a fixture in PyTest?

Answer: Define a fixture using the @pytest.Fixture decorator. Here’s an instance:

import pytest

@pytest.Fixture
def sample_data():
    Go back [1, 2, 3]

23. How do you operate a fixture in a test?

Answer: To use a fixture in a check, encompass it as a controversy in the take-a-look-at function:

def test_sum(sample_data):
    assert sum(sample_data) == 6

24. What is a mock object?

Answer: A mock object is a simulated item that mimics the conduct of actual gadgets in a controlled manner. It is used to test interactions among items and validate how your code handles unique eventualities.

25. How do you create a ridiculous object in Python?

Answer: Use the unit test.Mock module to create mock objects:

from unit test.Mock import Mock

mock = Mock()
mock.Approach.Return_value = ‘mocked!’

26. What is non-stop integration (CI)?

Answer: Continuous integration is a practice wherein developers regularly combine their code changes right into a shared repository. Each integration is automatically tested to locate errors early.

27. How does automation testing fit into CI/CD?

Answer: Automation trying out is integrated into the CI/CD pipeline to automatically check new code modifications. This ensures that code changes don’t wreck present capability and hastens the discharge method.

28. What is a test runner?

Answer: A check runner is a device that executes check instances and affords reviews on their consequences. Examples encompass PyTest, Nose, and Robot Framework.

29. How do you cope with exceptions on your exams?

Answer: Handle exceptions using strive-except blocks to your test code to catch and manipulate mistakes gracefully:

attempt:
    # code that could increase an exception
except Exception as e:
    # Cope with the exception

30. What is facts-pushed testing?

Answer: Data-pushed trying out involves running the identical take-a-look-at with more than one set of input records. This helps make sure that the software works efficiently with diverse inputs.

31. How do you enforce records-pushed testing in PyTest?

Answer: Use parameterized tests in PyTest to implement facts-driven trying out:

import pytest

@pytest.Mark.Parametrize(“enter, predicted”, [(1, 2), (2, 4), (3, 6)])
def test_multiplication(enter, predicted):
    assert input * 2 == expected

32. What is the Page Object Model?

Answer: The Page Object Model (POM) is a layout sample in Selenium in which each internet web page is represented by way of a class. This sample helps to manipulate page-unique code and makes the check code greater maintainable.

33. How do you put in force the Page Object Model in Selenium?

Answer: Create a category for each page with techniques that have interaction with web page elements. Here’s an instance:

magnificence LoginPage:
    def __init__(self, driver):
        self.Driver = driver
        self.Username_field = driver.Find_element_by_id(‘username’)
        self.Password_field = driving force.Find_element_by_id(‘password’)
        self.Login_button = motive force.Find_element_by_id(‘login’)

    def login(self, username, password):
        self.Username_field.Send_keys(username)
        self.Password_field.Send_keys(password)
        self.Login_button.Click on()

34. What are test furnishings in Robot Framework?

Answer: Test furniture in Robot Framework is used to put together and clean up the check environment before and after check execution. They are defined inside the test suite or useful resource documents.

35. How do you cope with browser home windows and tabs in Selenium?

Answer: You can manage browser home windows and tabs the usage of the window_handles and switch_to.Window techniques:

driving force.Switch_to.Window(motive force.Window_handles[1])  # Switch to the second one tab

36. What is a headless browser?

Answer: A headless browser is a browser that operates without a graphical character interface (GUI). It is useful for strolling automated exams in environments where no GUI is available.

37. What is the cause of the wait characteristic in Selenium?

Answer: The wait characteristic manages timing problems via pausing the execution till sure conditions are met, together with an element becoming seen or clickable.

38. How do you use WebDriverWait in Selenium?

Answer: Use WebDriverWait to watch for unique conditions:

from selenium.Webdriver.Common.By using import By
from selenium.Webdriver.Aid.Ui import WebDriverWait
from selenium.Webdriver.Guide import expected_conditions as EC

element = WebDriverWait(driving force, 10).Till(
    EC.Presence_of_element_located((By.ID, “element_id”))

39. What is the reason for the setup and teardown techniques in Unittest?

Answer: setUp is used to put together the take a look at the environment before every test run, even as tearDown is used to clean up after the test has been performed. These techniques help control test assets and kingdoms.

40. How do you manage dynamic content in Selenium?

Answer: Handle dynamic content through the use of explicit waits to watch for the content material to load or grow to be available before interacting with it. This guarantees that exams are dependable in spite of converting content.

41. What are some unusual assertions utilized in PyTest?

Answer: Common assertions in PyTest include:

assert a == b: Checks if a is equal to b.
Assert an in b: Checks if a is within the iterable b.
Assert a is None: Checks if a is None.

42. What is a mock server?

Answer: A mock server simulates the behaviour of an actual server, providing predefined responses to requests. It is used in trying to mimic server interactions while not having a stay server.

43. How do you mock HTTP requests in Python?

Answer: Use libraries like requests-mock to mock HTTP requests:

import requests
import requests_mock

with requests_mock.Mocker() as m:
    m.Get(‘http://instance.Com’, text=’records’)
    reaction = requests.Get(‘http://instance.Com’)
    assert reaction.Textual content == ‘records’

44. What is the reason for pytest.Mark.Skip?

Answer: pytest.Mark.Pass is used to bypass a test characteristic or approach. It is useful when positive exams are not applicable or want to be disregarded temporarily.

45. How do you parameterize tests in Robot Framework?

Answer: Parameterize checks in Robot Framework using variables in check cases and specifying one-of-a-kind values to run the same test with numerous inputs.

46. What is a take a look at double?

Answer: A take a look at double is a standard term for items that replace real components throughout checking out. Types of take a look at doubles include mocks, stubs, and fakes.

47. How do you deal with file uploads in Selenium?

Answer: Handle document uploads by way of putting the report course to the file enter element:

file_input = driving force.Find_element_by_id(‘file_upload’)
file_input.Send_keys(‘/route/to/record’)

48. What is a check insurance device?

Answer: A check coverage tool measures how much of the codebase is exercised by assessments. It enables the perceive untested elements of the code and enhances check pleasant.

49. How do you operate the coverage tool in Python?

Answer: Use the coverage tool to measure code insurance by way of strolling:

coverage run -m pytest
insurance document

50. What are some exceptional practices for writing automation checks?

Answer: Best practices for writing automation checks consist of:

• Write clean and maintainable checkcases.
• Use reusable components and test fixtures.
• Keep checks impartial and remoted.
• Regularly overview and refactor check code.
• Ensure assessments provide significant and actionable outcomes.

By familiarizing yourself with those questions and answers, you’ll be better prepared to tackle interviews for Python automation trying out roles in 2024.