chore(profiling): more tests for libdd and stack_v2

[taegyunkim]

First copied files from tests/profiling folder, and then modified them as needed. Tests checking for agent export urls are dropped. libdd exporter is created with agent url passed from tracer state whenever we try to upload, see feat(profiling): support dynamic agent url

These tests will be run under libdd_enabled and some of them had been edited to also run under stack_v2 enabled

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:

tests/profiling_v2/simple_program.py                                    @DataDog/profiling-python
tests/profiling_v2/simple_program_fork.py                               @DataDog/profiling-python
tests/profiling_v2/simple_program_gevent.py                             @DataDog/profiling-python
tests/profiling_v2/test_accuracy.py                                     @DataDog/profiling-python
tests/profiling_v2/test_main.py                                         @DataDog/profiling-python
tests/profiling_v2/test_profiler.py                                     @DataDog/profiling-python
tests/profiling_v2/test_scheduler.py                                    @DataDog/profiling-python
tests/profiling/collector/test_stack.py                                 @DataDog/profiling-python
tests/profiling/test_accuracy.py                                        @DataDog/profiling-python
tests/profiling_v2/collector/test_stack.py                              @DataDog/profiling-python

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-12-20 18:47:43

Comparing candidate commit e6750cc in PR branch taegyunkim/prof-10736-copy-tests with baseline commit 6ea56c5 in branch main.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 394 metrics, 2 unstable metrics.

[datadog-dd-trace-py-rkomorn]

Datadog Report

Branch report: taegyunkim/prof-10736-copy-tests
Commit report: 819910b
Test service: dd-trace-py

✅ 0 Failed, 802 Passed, 666 Skipped, 15m 27.28s Total duration (21m 20.05s time saved)

[nsrip-dd]

Admittedly I haven't closely scrutinized every single test, but generally looks good. Left one note about a flaky test.