[Buildroot] [git commit branch/next] support/testing: check ubi image before booting

[Thomas Petazzoni]

commit: https://git.buildroot.net/buildroot/commit/?id=8de4291bd2097d8142cd9d77a2b3315d3693443b
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/next

Do the same as other fs tests and minimally check the ubi image before
booting.
The call to 'file' was already there, but the output wasn't tested for
some unknown reason. Add the assert for the output of the command.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski at gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
---
 support/testing/tests/fs/test_ubi.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/support/testing/tests/fs/test_ubi.py b/support/testing/tests/fs/test_ubi.py
index 015d82f769..e024d417df 100644
--- a/support/testing/tests/fs/test_ubi.py
+++ b/support/testing/tests/fs/test_ubi.py
@@ -25,6 +25,7 @@ class TestUbi(infra.basetest.BRTest):
                                       cwd=self.builddir,
                                       env={"LANG": "C"})
         out = out.splitlines()
+        self.assertIn("UBI image, version 1", out[0])
 
         subprocess.call(["truncate", "-s 128M", img])