Parameterized tests in Selenium Python - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a parameterized test in software testing?

A parameterized test runs the same test code multiple times with different input values. It helps check many cases without writing separate tests for each.

beginner

Why use parameterized tests in Selenium with Python?

They save time by reusing test code for different inputs, making tests easier to maintain and cover more scenarios efficiently.

beginner

Which Python library is commonly used for parameterized tests with Selenium?

The 'pytest' library with the '@pytest.mark.parametrize' decorator is commonly used to create parameterized tests in Selenium Python.

intermediate

How do you define multiple test inputs using '@pytest.mark.parametrize'?

You list the parameter names as a string, then provide a list of tuples with values for each test run. Example: @pytest.mark.parametrize('input,expected', [(1,2), (3,4)])

intermediate

What is a key benefit of parameterized tests for test reports?

Each input set runs as a separate test case, so reports show which inputs passed or failed clearly, helping find issues faster.

What does a parameterized test do?

A Runs the same test with different inputs

B Runs different tests with the same input

C Runs tests only once

D Runs tests without any inputs

A parameterized test runs the same test code multiple times with different inputs.

Which decorator is used in pytest for parameterized tests?

A @pytest.inputdata

B @pytest.mark.parametrize

C @pytest.testcase

D @pytest.run

The '@pytest.mark.parametrize' decorator is used to define parameterized tests in pytest.

What is the format to provide multiple inputs in '@pytest.mark.parametrize'?

A A list of tuples with values

B A dictionary of inputs

C A single string with values

D A set of integers

You provide a list of tuples, each tuple containing values for one test run.

Why are parameterized tests helpful in Selenium testing?

A They require writing many test functions

B They make tests run slower

C They reduce code duplication and test many inputs easily

D They only test one input

Parameterized tests reduce code duplication and allow testing many inputs efficiently.

How does test reporting benefit from parameterized tests?

A Hides input details

B Does not show test results

C Merges all inputs into one result

D Shows results for each input separately

Each input runs as a separate test case, so reports show pass/fail per input clearly.

Explain how to create a parameterized test in Selenium Python using pytest.

Think about how pytest runs the same test with different inputs.

Describe the advantages of using parameterized tests in automated UI testing.

Consider how testing many inputs helps find bugs faster.