chore(iast): add google testing for the native IAST module

[juanjux]

Description

Add unittesting using GoogleTest for the native code (which libddwaf and profiling also use). Also moves some code around to make it easier to test (to header files as inline usually) and fixes a couple issues that the unittesting found.

For future PRs:

• Coverage.

Signed-off-by: Juanjo Alvarez [email protected]

Checklist

• PR author has checked that all the criteria below are met
• The PR description includes an overview of the change
• The PR description articulates the motivation for the change
• The change includes tests OR the PR description describes a testing strategy
• The PR description notes risks associated with the change, if any
• Newly-added code is easy to change
• The change follows the library release note guidelines
• The change includes or references documentation updates if necessary
• Backport labels are set (if applicable)

Reviewer Checklist

• Reviewer has checked that all the criteria below are met
• Title is accurate
• All changes are related to the pull request's stated goal
• Avoids breaking API changes
• Testing strategy adequately addresses listed risks
• Newly-added code is easy to change
• Release note makes sense to a user of the library
• If necessary, author has acknowledged and discussed the performance implications of this PR as reported in the benchmarks PR comment
• Backport labels are set in a manner that is consistent with the release branch maintenance policy

[github-actions]

CODEOWNERS have been resolved as:

ddtrace/appsec/_iast/_taint_tracking/tests/CMakeLists.txt               @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/tests/test_helpers.cpp             @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/tests/test_stringutils.cpp         @DataDog/asm-python
.gitlab/tests/appsec.yml                                                @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/Aspects/AspectsOsPath.cpp          @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/Aspects/Helpers.cpp                @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/Aspects/Helpers.h                  @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/CMakeLists.txt                     @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/Utils/StringUtils.cpp              @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/Utils/StringUtils.h                @DataDog/asm-python
ddtrace/appsec/_iast/_taint_tracking/clean.sh                           @DataDog/asm-python
hatch.toml                                                              @DataDog/python-guild
tests/.suitespec.json                                                   @DataDog/python-guild @DataDog/apm-core-python
tests/appsec/iast/aspects/test_aspect_helpers.py                        @DataDog/asm-python

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: juanjux/APPSEC-54599-native-unittesting
Commit report: 36260bd
Test service: dd-trace-py

✅ 0 Failed, 6491 Passed, 218 Skipped, 1h 34m 0.21s Total duration (1m 43.19s time saved)

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-09-13 09:16:03

Comparing candidate commit 36260bd in PR branch juanjux/APPSEC-54599-native-unittesting with baseline commit 15a9399 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 8 metrics, 0 unstable metrics.

[avara1986]

LGTM