Merge patch series "Improve pytest runtime"

Tom Rini <trini@konsulko.com> says:

One thing that Simon Glass has noted is that our pytest run time keeps
getting longer. Looking at:
https://source.denx.de/u-boot/u-boot/-/pipelines/25011/test_report?job_name=sandbox%20test.py%3A%20%5Bfast%20amd64%5D
we can see that some of the longest running tests are a little puzzling.
It turns out that we have two ways of making filesystem images without
requiring root access and one of them is significantly slower than the
other. This series changes us from using virt-make-fs to only using the
mk_fs helper that currently resides in test_ut.py which uses standard
userspace tools. The final result can be seen at:
https://source.denx.de/u-boot/u-boot/-/pipelines/25015/test_report?job_name=sandbox%20test.py%3A%20%5Bfast%20amd64%5D
and the tests changed here now run much quicker.

Link: https://lore.kernel.org/r/20250320140030.2052434-1-trini@konsulko.com

1 files changed, 37 insertions, 0 deletions

diff --git a/test/py/tests/test_cat.py b/test/py/tests/test_cat.py
new file mode 100644
index 00000000000..252c3d50a02
--- /dev/null
+++ b/test/py/tests/test_cat.py
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier:      GPL-2.0+
+
+""" Unit test for cat command
+"""
+
+import pytest
+from subprocess import call, check_call, CalledProcessError
+from tests import fs_helper
+
+@pytest.mark.boardspec('sandbox')
+@pytest.mark.buildconfigspec('cmd_cat')
+def test_cat(ubman):
+    """ Unit test for cat
+
+    Args:
+        ubman -- U-Boot console
+    """
+    try:
+        scratch_dir = ubman.config.persistent_data_dir + '/scratch'
+
+        check_call('mkdir -p %s' % scratch_dir, shell=True)
+
+        with open(scratch_dir + '/hello', 'w', encoding = 'ascii') as file:
+            file.write('hello world\n')
+
+        cat_data = fs_helper.mk_fs(ubman.config, 'vfat', 0x100000,
+                                   'test_cat', scratch_dir)
+        response = ubman.run_command_list([ f'host bind 0 {cat_data}',
+                                                    'cat host 0 hello'])
+        assert 'hello world' in response
+    except CalledProcessError as err:
+        pytest.skip('Preparing test_cat image failed')
+        call('rm -f %s' % cat_data, shell=True)
+        return
+    finally:
+        call('rm -rf %s' % scratch_dir, shell=True)
+        call('rm -f %s' % cat_data, shell=True)