Windmill vs LightBDD comparison of testing frameworks
What are the differences between Windmill and LightBDD?

Windmill

https://pypi.org/project/windmill/

LightBDD

https://github.com/LightBDD/LightBDD
Programming language

Python

.NET

Category

UI Testing

Acceptance Testing

General info

Windmill is an Open Source Web UI testing framework for Python

Windmill is an Open Source AJAX Web UI testing framework that implements in-browser recording and playback, cross browser testing and test integration

LightBDD is a BDD test framework that allows you to create easy to read and maintainable tests

LightBDD is a BDD test framework offering ability to write tests that are easy to read, easy to track during execution and are summarized in user friendly reports. It also allows developers to use all of the standard development tools to maintain them
xUnit
Set of frameworks originating from SUnit (Smalltalk's testing framework). They share similar structure and functionality.

No

No

No, but it is Integrated with xUnit frameworkslike NUnit, xUnit, MsTest.TestFramework and Fixie.
Client-side
Allows testing code execution on the client, such as a web browser

Yes

Its main function is testing of front-end components and functionality

Yes

You can test front-end behaviour using lightBDD
Server-side
Allows testing the bahovior of a server-side code

No

Yes

You can test back-end behaviour/functionality using lightBDD
Fixtures
Allows defining a fixed, specific states of data (fixtures) that are test-local. This ensures specific environment for a single test

N/A

Yes

Fixtures are available through the FeatureFixture class.
Group fixtures
Allows defining a fixed, specific states of data for a group of tests (group-fixtures). This ensures specific environment for a given group of tests.

N/A

Yes

Group fixtures are available in lightBDD through the FeatureFixture class
Generators
Supports data generators for tests. Data generators generate input data for test. The test is then run for each input data produced in this way.

Yes

By using third party libraries

N/A

Licence
Licence type governing the use and redistribution of the software

Apache License 2.0

Proprietary License

Mocks
Mocks are objects that simulate the behavior of real objects. Using mocks allows testing some part of the code in isolation (with other parts mocked when needed)

N/A

Yes

Mocking is available through the use of third party libraries like moq
Grouping
Allows organizing tests in groups

N/A

Yes

You can group tests into suites
Other
Other useful information about the testing framework