Files
RustyUI/crates/stable-diffusion-burn/burn-crates/burn-backend-tests/tests/autodiff/sigmoid.rs
Ben_Kosytorz 3a67c0979c feat: update workspace paths and enhance gitignore
- Updated stablediffusion crate path from "../stable-diffusion-burn" to "./crates/stable-diffusion-burn" for proper workspace resolution
- Enhanced .gitignore to include generated model files (.mpk, .pt, .bin, .safetensors, .ckpt) and user_data directory
- Added Cargo.lock to gitignore with appropriate comment
- Reorganized IDE files section in gitignore for better clarity
- Added newline at end of file for proper formatting
2026-03-05 19:39:14 +01:00

36 lines
1.1 KiB
Rust

use super::*;
use burn_tensor::Tolerance;
use burn_tensor::{TensorData, activation};
#[test]
fn should_diff_sigmoid() {
let data = TensorData::from([0.8762]);
let device = Default::default();
let tensor_1 = TestAutodiffTensor::<1>::from_data(data, &device).require_grad();
let tensor_2 = activation::sigmoid(tensor_1.clone());
let grads = tensor_2.backward();
let grad = tensor_1.grad(&grads).unwrap();
let expected = TensorData::from([0.207549]);
grad.to_data()
.assert_approx_eq::<FloatElem>(&expected, Tolerance::default());
}
#[test]
fn small_neg_val_should_not_cause_grad_overflow() {
let data = TensorData::from([-90.0]);
let device = Default::default();
let tensor_1 = TestAutodiffTensor::<1>::from_data(data, &device).require_grad();
let tensor_2 = activation::sigmoid(tensor_1.clone());
let grads = tensor_2.backward();
let grad = tensor_1.grad(&grads).unwrap();
let expected = TensorData::from([0.0]);
grad.to_data()
.assert_approx_eq::<FloatElem>(&expected, Tolerance::default());
}