diffusers

ecbaed79 - [tests] refactor test_models_unet_3d_condition.py to use modular testing mixins

[tests] refactor test_models_unet_3d_condition.py to use modular testing mixins Refactor UNet3DConditionModel tests to follow the modern testing pattern with separate classes for core, attention, memory, training, and LoRA. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>