tests/functional: Add QemuUserTest class

Per commit 5334df4822 ("tests/avocado: Introduce
QemuUserTest base class"):

  Similarly to the 'System' Test base class with methods
  for testing system emulation, the QemuUserTest class
  contains methods useful to test user-mode emulation.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240822104238.75045-2-philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240830133841.142644-38-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

tests/functional/qemu_test/__init__.py

@@ -11,4 +11,4 @@ from .config import BUILD_DIR
 from .cmd import has_cmd, has_cmds, run_cmd, is_readable_executable_file, \
     interrupt_interactive_console_until_pattern, wait_for_console_pattern, \
     exec_command, exec_command_and_wait_for_pattern, get_qemu_img
-from .testcase import QemuSystemTest, QemuBaseTest
+from .testcase import QemuBaseTest, QemuUserTest, QemuSystemTest

tests/functional/qemu_test/testcase.py

@@ -13,6 +13,7 @@
 
 import logging
 import os
+import subprocess
 import pycotap
 import sys
 import unittest
@@ -70,6 +71,22 @@ class QemuBaseTest(unittest.TestCase):
         unittest.main(module = None, testRunner = tr, argv=["__dummy__", path])
 
 
+class QemuUserTest(QemuBaseTest):
+
+    def setUp(self):
+        super().setUp('qemu-')
+        self._ldpath = []
+
+    def add_ldpath(self, ldpath):
+        self._ldpath.append(os.path.abspath(ldpath))
+
+    def run_cmd(self, bin_path, args=[]):
+        return subprocess.run([self.qemu_bin]
+                              + ["-L %s" % ldpath for ldpath in self._ldpath]
+                              + [bin_path]
+                              + args,
+                              text=True, capture_output=True)
+
 class QemuSystemTest(QemuBaseTest):
     """Facilitates system emulation tests."""