When running in TAP mode, stdout is reserved for the TAP protocol. To see the "diff" of the failed test, we have to print it to stderr instead.
Signed-off-by: Thomas Huth <th...@redhat.com> --- tests/qemu-iotests/testrunner.py | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tests/qemu-iotests/testrunner.py b/tests/qemu-iotests/testrunner.py index 9d20f51bb1..1f7ca1f2f9 100644 --- a/tests/qemu-iotests/testrunner.py +++ b/tests/qemu-iotests/testrunner.py @@ -404,7 +404,10 @@ def run_tests(self, tests: List[str], jobs: int = 1) -> bool: if res.status == 'fail': failed.append(name) if res.diff: - print('\n'.join(res.diff)) + if self.tap: + print('\n'.join(res.diff), file=sys.stderr) + else: + print('\n'.join(res.diff)) elif res.status == 'not run': notrun.append(name) elif res.status == 'pass': -- 2.27.0