# Fluent Api for Burn Contract and Test Assertions
This crate provides a fluent api for contract and test assertions for the Burn framework.
```rust
use burn_contracts::assert_tensor;
let tensor: Tensor<B, 4> = Tensor::new(&[10, 3, 32, 17]);
assert_tensor(&tensor)
.has_named_dims([('N', 10), ('C', 3), ('H', 32), ('W', 32)]);
// Panics:
// "Expected tensor to have dimensions [('N', 10), ('C', 3), ('H', 32), ('W', 32)] but got [(10, 3, 32, 17)]"
```
## Testing API
The "testing" feature enables the testing api; which provides expensive methods for testing
tensor contents.
To ensure that the testing api is not used in production, the testing api is only available
when the "testing" feature is enabled.
To enable the "testing" feature only for testing, add the following to your `Cargo.toml`:
```toml
[dependencies]
burn-contracts = $VERSION
[dev-dependencies]
burn-contracts = { version = $VERSION, features = ["testing"] }
```