[gnome-bluetooth/wip/hadess/more-tests: 3/4] tests: Run tests under Valgrind if requested

[Bastien Nocera <hadess src gnome org>]

commit e4a0471ad9a35820126ef2d836f117d58b949e58
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Feb 16 17:33:09 2021 +0100

    tests: Run tests under Valgrind if requested
    
    VALGRIND=1 meson test
    will run the tests under Valgrind and print out all the output from the
    memory leak detection tool.

 tests/integration-test | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
---
diff --git a/tests/integration-test b/tests/integration-test
index d0eaa188..ea7e8368 100755
--- a/tests/integration-test
+++ b/tests/integration-test
@@ -143,6 +143,10 @@ class Tests(dbusmock.DBusTestCase):
         (cls.p_mock, cls.obj_bluez) = cls.spawn_server_template(
             'bluez5', {}, stdout=subprocess.PIPE)
 
+        cls.exec_path = [sys.argv[0]]
+        if os.getenv('VALGRIND') != None:
+            cls.exec_path = ['valgrind'] + cls.exec_path
+
     @classmethod
     def tearDownClass(cls):
         cls.p_mock.stdout.close()
@@ -158,8 +162,10 @@ class Tests(dbusmock.DBusTestCase):
         # Get the calling function's name
         test_name = inspect.stack()[1][3]
         # And run the test with the same name in the OopTests class in a separate process
-        out = subprocess.run([sys.argv[0], 'OopTests.' + test_name], capture_output=True)
+        out = subprocess.run(self.exec_path + ['OopTests.' + test_name], capture_output=True)
         self.assertEqual(out.returncode, 0, "Running test " + test_name + " failed:" + 
out.stderr.decode('UTF-8'))
+        if os.getenv('VALGRIND') != None:
+            print(out.stderr.decode('UTF-8'))
 
     def test_no_adapters(self):
         self.run_test_process()