`node_bilateralblur.blend` covered a specific case where the determinator was a single value. This was renamed to `node_bilateralblur_det_single_value.blend` and added a single value input test for the image, and a standard bilateral blur test for cpu/gpu Coverage: - Function: 66.67% -> 100% - Line: 39.10% -> 100% - Region: 45.71% -> 100% - Branch: 22.22% -> 88.89% Pull Request: https://projects.blender.org/blender/blender/pulls/141315