Run functional tests with bitcoin-qt gui

[maflcko]

bitcoin@85e2b57

QT_FATAL_WARNINGS=1 LC_ALL=de_DE.UTF-8 QT_QPA_PLATFORM=offscreen BITCOIND=bitcoin-qt ./test/functional/test_runner.py

diff --git a/test/functional/test_framework/test_node.py b/test/functional/test_framework/test_node.py
index 0ac0af27d5..2e041d6de7 100755
--- a/test/functional/test_framework/test_node.py
+++ b/test/functional/test_framework/test_node.py
@@ -630,6 +630,7 @@ class TestNode():
         Will throw if bitcoind starts without an error.
         Will throw if an expected_msg is provided and it does not match bitcoind's stdout."""
         assert not self.running
+        return
         with tempfile.NamedTemporaryFile(dir=self.stderr_dir, delete=False) as log_stderr, \
              tempfile.NamedTemporaryFile(dir=self.stdout_dir, delete=False) as log_stdout:
             try: