Scale Test Automation With OOP | Dataford Interview Questions

How do you implement object-oriented programming principles when building a scalable test automation framework?

Implement a small, framework-agnostic test runner that executes declarative test steps through interchangeable action objects. Use abstraction, encapsulation, composition, and polymorphism so new action types can be added without modifying the runner.

The function receives a list of test definitions and returns one result per test with its name, pass status, and failed step index, or null when all steps pass.

Constraints

0 <= test_definitions.length <= 1000
Each test definition contains a unique string name and a list of zero or more steps
Supported step types are navigate, set_field, assert_url, and assert_field
Each test has at most 1000 steps
A test stops after its first failed assertion

Function Signature

def run_tests(test_definitions):

Your question is Scale Test Automation With OOP. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

How do you implement object-oriented programming principles when building a scalable test automation framework?

The function receives a list of test definitions and returns one result per test with its name, pass status, and failed step index, or null when all steps pass.

Constraints

0 <= test_definitions.length <= 1000
Each test definition contains a unique string name and a list of zero or more steps
Supported step types are navigate, set_field, assert_url, and assert_field
Each test has at most 1000 steps
A test stops after its first failed assertion

Function Signature

def run_tests(test_definitions):

Your question is Scale Test Automation With OOP. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.