[Buildroot] [PATCH 01/29] support/testing: infra: add assertRunNotOk()

From: Peter Korsgaard <peter@korsgaard.com>
To: buildroot@buildroot.org
Cc: Ricardo Martincoski <ricardo.martincoski@datacom.com.br>
Subject: [Buildroot] [PATCH 01/29] support/testing: infra: add assertRunNotOk()
Date: Thu, 18 Jun 2026 14:47:52 +0200	[thread overview]
Message-ID: <20260618124835.2935850-1-peter@korsgaard.com> (raw)

There are a number of runtime tests that checks that a command fails as
expected, so add an assertRunNotOk() similar to the existing assertRunOk()
to handle that instead of open coding it everywhere.

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
---
 support/testing/infra/basetest.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/support/testing/infra/basetest.py b/support/testing/infra/basetest.py
index 5fa902a77f..9b3eef6fa8 100644
--- a/support/testing/infra/basetest.py
+++ b/support/testing/infra/basetest.py
@@ -150,3 +150,14 @@ class BRTest(BRConfigTest):
             0,
             "\nFailed to run: {}\noutput was:\n{}".format(cmd, '  '+'\n  '.join(out))
         )
+
+    # Run the given 'cmd' with a 'timeout' on the target and
+    # assert that the command fails; on success, print the
+    # faulty command and its output
+    def assertRunNotOk(self, cmd, timeout=-1):
+        out, exit_code = self.emulator.run(cmd, timeout)
+        self.assertNotEqual(
+            exit_code,
+            0,
+            "\nUnexpected success: {}\noutput was:\n{}".format(cmd, '  '+'\n  '.join(out))
+        )
-- 
2.47.3

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