added unit tests for data transformer types

[Nityam573]

Closes #2575

Introduced changes

Added u384 tests, u96 tests and bytes31 tests

Checklist

• ✅ Linked relevant issue
• ✅ Updated relevant documentation
• ✅ Added relevant tests
• ✅ Performed self-review of the code
• ✅ Added changes to CHANGELOG.md

[franciszekjob]

Hi @Nityam573 👋,
let me if you're ready for review or need any assistance 😄

[franciszekjob]

Hi @Nityam573 😄,
I see you've added test for u384, are you going to add tests for other types?

Also, please fix formatting and lint, by running cargo fmt and cargo lint as described in the development docs

[Nityam573]

@franciszekjob i am on it will ready for review by tonight

[Nityam573]

@franciszekjob please review

[Nityam573]

@franciszekjob I am getting some issues while testing u384.rs can i configure u384.rs file from my end and then test it

[franciszekjob]

@Nityam573 What do you mean by "configure u384.rs file from my end"? 😅

[Nityam573]

@franciszekjob The error is happening when trying to convert slices to arrays in the from_bytes function in u384
I guess error is in the from_bytes implementation trying to convert 12 bytes into u128 (which needs 16 bytes)
What is your say regarding it

[franciszekjob]

@franciszekjob The error is happening when trying to convert slices to arrays in the from_bytes function in u384 I guess error is in the from_bytes implementation trying to convert 12 bytes into u128 (which needs 16 bytes) What is your say regarding it

@Nityam573 yes, you're correct 👍
Could you please modify CairoU384.from_bytes implementation? It should look as follows:

impl CairoU384 {
    #[must_use]
    pub fn from_bytes(bytes: &[u8; 48]) -> Self {
        fn to_u128(slice: &[u8]) -> u128 {
            let mut padded = [0u8; 16];
            padded[4..].copy_from_slice(slice);
            u128::from_be_bytes(padded)
        }

        Self {
            limb_0: to_u128(&bytes[36..48]),
            limb_1: to_u128(&bytes[24..36]),
            limb_2: to_u128(&bytes[12..24]),
            limb_3: to_u128(&bytes[0..12]),
        }
    }
}

I've added extra 4 bytes in size for each slice, should be fine now.

[Nityam573]

@franciszekjob please review

[Nityam573]

@franciszekjob please review

[Nityam573]

@franciszekjob please review

[Nityam573]

@franciszekjob review the changes

[Nityam573]

@franciszekjob review please

[franciszekjob]

Otherwise looks fine, @cptartur @ddoktorski could one of you also take a look?

[Nityam573]

@cptartur @ddoktorski @kkawula please review

[Nityam573]

@cptartur @kkawula PLEASE review and merge the PR