platformio-core: Native: PlatformIO reports test as "Failed" even when all passed

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Configuration

Operating system: Ubuntu 20.04.4 LTS

PlatformIO Version (platformio --version): 5.2.5

Description of problem

When running tests on native platform, PlatformIO marks some tests as “Failed” even when unity reports that all tests have been passed successfully and prints final message “OK”. This appears only on native platform. The interesting thing about it is if test-run order is shuffled then everything is ok.

Steps to Reproduce

1. Clone repo: https://github.com/Di-Strix/PIOTestFailDemo
2. Run test natively using pio test -e native
3. Get “OK” from unity and “Fail” from PlatformIO
4. Swap test-run order so that ‘test_injection_empty_file’ runs first and then ‘test_injection_url’
5. Run test again using pio test -e native
6. Get “OK” from unity and “Passed” from PlatformIO