[bmurphy1976]

Is that UE4 or games written in UE4? I can totally believe it for games written in UE4, but the engine itself? Doesn't pass the sniff test.

[dafelst]

I've been working professionally on a UE4 game with a license to the full UE4 engine codebase, I can confirm that the engine has some unit and functional tests, but the overall coverage is abysmally low.

[homarp]

https://docs.unrealengine.com/en-US/TestingAndOptimization/A... is the overview of the automation system used for unit testing, feature testing, and content stress testing.

[ensiferum]

There's some built-in testing functionality for the games but there aren't much tests for the engine itself in the source package.

Oh and I spent about 3 years working with UE4. The engine is a bug fest.