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[PATCH v2 6/7] tests/acceptance: Add set_vm_arg() to the Test class

From: Wainer dos Santos Moschetta
Subject: [PATCH v2 6/7] tests/acceptance: Add set_vm_arg() to the Test class
Date: Thu, 8 Apr 2021 16:52:36 -0300

The set_vm_arg method is added to avocado_qemu.Test class on this
change. Use that method to set (or replace) an argument to the list of
arguments given to the QEMU binary.

Suggested-by: Cleber Rosa <crosa@redhat.com>
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
 tests/acceptance/avocado_qemu/__init__.py | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tests/acceptance/avocado_qemu/__init__.py 
index 7f8e703757..5314ce70eb 100644
--- a/tests/acceptance/avocado_qemu/__init__.py
+++ b/tests/acceptance/avocado_qemu/__init__.py
@@ -240,6 +240,22 @@ def get_vm(self, *args, name=None):
         return self._vms[name]
+    def set_vm_arg(self, arg, value):
+        """
+        Set an argument to list of extra arguments to be given to the QEMU
+        binary. If the argument already exists then its value is replaced.
+        :param arg: the QEMU argument, such as "-cpu" in "-cpu host"
+        :type arg: str
+        :param value: the argument value, such as "host" in "-cpu host"
+        :type value: str
+        """
+        if arg not in self.vm.args:
+            self.vm.args.extend([arg, value])
+        else:
+            idx = self.vm.args.index(arg)
+            self.vm.args[idx + 1] = value
     def tearDown(self):
         for vm in self._vms.values():

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