Pull Request Overview

This PR adds code coverage functionality to the test suite using gcovr. The implementation provides both automated and manual workflows for generating coverage reports in various formats (HTML, XML, JSON) with customizable filtering and threshold options.

• Added gcovr-based code coverage support with compiler instrumentation flags
• Implemented convenient make coverage target for automated coverage workflow
• Added comprehensive documentation with installation, usage, and customization examples

Reviewed Changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated 2 comments.

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

Pull Request Overview

Copilot reviewed 2 out of 3 changed files in this pull request and generated no new comments.

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

Pull Request Overview

Copilot reviewed 2 out of 3 changed files in this pull request and generated no new comments.

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

Copilot encountered an error and was unable to review this pull request. You can try again by re-requesting a review.

@jackctj117 when I run make coverage this is the coverage report I see generated

This doesn't seem right? From the build output:

Generating coverage report...
cd .. && mkdir -p coverage && gcovr --root . \
        --filter 'src/.*' \
        --filter 'wolfhsm/.*' \
        --html-details coverage/index.html \
        --print-summary
lines: 0.0% (0 out of 0)
branches: 0.0% (0 out of 0)