Re: [PATCH] tests: Ensure TAP version is printed before other messages

["Richard W.M. Jones" <rjones@redhat.com>]

On Tue, Feb 28, 2023 at 09:30:56PM +0100, Thomas Huth wrote:
> On 27/02/2023 18.40, Richard W.M. Jones wrote:
> >These two tests were failing with this error:
> >
> >   stderr:
> >   TAP parsing error: version number must be on the first line
> >   [...]
> >   Unknown TAP version. The first line MUST be `TAP version <int>`. Assuming version 12.
> >
> >This can be fixed by ensuring we always call g_test_init first in the
> >body of main.
> >
> >Thanks: Daniel Berrange, for diagnosing the problem
> >Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
> >---
> >  tests/qtest/fuzz-lsi53c895a-test.c | 4 ++--
> >  tests/qtest/rtl8139-test.c         | 5 +++--
> >  2 files changed, 5 insertions(+), 4 deletions(-)
> >
> >diff --git a/tests/qtest/fuzz-lsi53c895a-test.c b/tests/qtest/fuzz-lsi53c895a-test.c
> >index a9254b455d..2012bd54b7 100644
> >--- a/tests/qtest/fuzz-lsi53c895a-test.c
> >+++ b/tests/qtest/fuzz-lsi53c895a-test.c
> >@@ -112,12 +112,12 @@ static void test_lsi_do_dma_empty_queue(void)
> >  int main(int argc, char **argv)
> >  {
> >+    g_test_init(&argc, &argv, NULL);
> >+
> >      if (!qtest_has_device("lsi53c895a")) {
> >          return 0;
> 
> Could you please double-check that the !lsi53c895a case works fine,
> too? (just temporarily change it into a "if (1) { ..." statement)
> ... I'm a little bit afraid that the TAP protocol might be
> incomplete without the g_test_run() at the end otherwise. If so, you
> might now need a "goto out" instead of the "return 0" here...

Applying ...

diff --git a/tests/qtest/fuzz-lsi53c895a-test.c b/tests/qtest/fuzz-lsi53c895a-test.c
index 2012bd54b7..e0c902aac4 100644
--- a/tests/qtest/fuzz-lsi53c895a-test.c
+++ b/tests/qtest/fuzz-lsi53c895a-test.c
@@ -114,7 +114,7 @@ int main(int argc, char **argv)
 {
     g_test_init(&argc, &argv, NULL);
 
-    if (!qtest_has_device("lsi53c895a")) {
+    if (1) {
         return 0;
     }
 
... and rerunning the tests, everything still passes.

The stdout of the test after this change is:

TAP version 13
# random seed: R02S1c1f371a09fbfdf0dd747f898d55fe97

but apparently this version of TAP doesn't care (perhaps because the
number of tests "1..2" is never printed?)

Anyway it doesn't appear to be a problem.

glib2-2.75.3-4.fc39.x86_64

Rich.

-- 
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