@BeforeEach
    void onSetup() {
        // MockitoAnnotations.openMocks(this);

        Map<String, String> envVarMap = new HashMap<>();
        envVarMap.put("testKey", "testValue");
        envVarMap.put("testSpecialCharactersKey", "<test&Value>");
        OperatingSystemUtils.setEnvVarSource(new TestEnvVarSource(envVarMap));

        toolchainBuilder = new DefaultToolchainsBuilder(