[FIX] 134 Codes in XDS and General Tests

[steel-bucket]

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I had made some change before to fix the Unit Tests failing, using Fallback values in functions. But this caused problems in a few regression tests. In this PR, I have reverted the function changes done to Dtvcc::new() and have rather focused on the tests.

[Copilot]

Pull Request Overview

This PR reverts the previous fallback logic in Dtvcc::new in favor of directly dereferencing the context pointers and updates the unit tests to initialize those pointers explicitly.

• Switches Dtvcc::new from boxed defaults to unsafe pointer dereferencing
• Adds an initialize_dtvcc_ctx helper to set up dtvcc_ctx for tests
• Updates tests (test_do_cb, test_process_cc_data, etc.) to use the new helper; changes test_verify_parity signature

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/rust/src/lib.rs	Made test_verify_parity public and updated one test to use new ctx helper
src/rust/src/decoder/mod.rs	Rewrote Dtvcc::new to unsafe-deref pointers; added initialize_dtvcc_ctx and exposed the test module

Comments suppressed due to low confidence (2)

src/rust/src/lib.rs:324

• This test function no longer has the #[test] attribute, so it won't be run. Please re-add #[test] above the function declaration.

    pub fn test_verify_parity() {

src/rust/src/decoder/mod.rs:239

• [nitpick] Making the test module public exposes internal helpers; consider keeping it private (i.e., mod test) since it's only used in #[cfg(test)] builds.

pub mod test {