qt_testrunner: fix execution of qt_mock_test.py under testing on windows

tst_qt_testrunner.py  invokes  qt_testrunner.py  which invokes  qt_mock_test.py.

On Windows a python script is not directly executable. It needs to be
executed as "python.exe script.py". To achieve that when testing,
the tests set the env var QT_TESTRUNNER_TESTING. When qt-testrunner
detects that, it prepends the command line with
sys.executable which is the currently used python interpreter.

Doing so also ensures that all sub-scripts are executed with the same
Python version.

Pick-to: 6.11 6.10 6.8
Change-Id: I4786e4015ded328077fd9cc7b443f4b4d9d69de7
Reviewed-by: Mårten Nordheim <[email protected]>
Reviewed-by: Edward Welbourne <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/util/testrunner/qt-testrunner.py b/util/testrunner/qt-testrunner.py
index 6437c3fe7f1..52d11dfeee6 100755
--- a/util/testrunner/qt-testrunner.py
+++ b/util/testrunner/qt-testrunner.py
@@ -299,6 +299,12 @@ def parse_log(results_file) -> WhatFailed:
 
 
 def run_test(arg_list: List[str], **kwargs):
+    if (os.environ.get("QT_TESTRUNNER_TESTING", "0") == "1"
+        and os.name == "nt"
+        and arg_list[0].endswith(".py")
+    ):
+        # For executing qt_mock_test.py under the same Python interpreter when testing.
+        arg_list = [ sys.executable ] + arg_list
     L.debug("Running test command line: %s", arg_list)
     proc = subprocess.run(arg_list, **kwargs)
     L.info("Test process exited with code: %d", proc.returncode)