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test-cases/hash-encoded/README.md

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+# Function `hash_encoded`
+
+```rust
+pub fn hash_encoded<H, T>(input: &T, output: &mut <H as HashOutput>::Type)
+```
+
+## Description
+
+The `hash_encoded` module offers the capability to first encode the given input using SCALE encoding and then compute its cryptographic hash using the specified hash function. The `hash_encoded` function is integral for operations where encoded data needs to be verified or its integrity ensured through hashing.
+
+## Related ink! functions
+
+- [`hash_encoded`](https://paritytech.github.io/ink/ink_env/fn.hash_encoded.html)
+
+## Test case
+
+Both the integration tests and end-to-end tests in the `hash_encoded` module verify the hashing and encoding functionality of the contract. Each test ensures that the corresponding hash function produces the expected hash output for a given input.
+
+## Comparison Integration vs E2E
+
+The function `hash_encoded` has been successfully validated in both integration and end-to-end test scenarios, demonstrating its robustness and consistent implementation.
+
+| #   | Test                                                   | Integration | E2E |
+| --- | ------------------------------------------------------ | :---------: | :-: |
+| 1   | Attempts to get the hash using the method `sha_256`    |     ✅      | ✅  |
+| 2   | Attempts to get the hash using the method `blake_128`  |     ✅      | ✅  |
+| 3   | Attempts to get the hash using the method `blake_256`  |     ✅      | ✅  |
+| 4   | Attempts to get the hash using the method `keccak_256` |     ✅      | ✅  |
+
+## Result
+
+- This functionality is implemented and works as expected