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[PULL 18/23] tests/acceptance: Add set_vm_arg() to the Test class

From: Cleber Rosa
Subject: [PULL 18/23] tests/acceptance: Add set_vm_arg() to the Test class
Date: Tue, 13 Jul 2021 17:19:18 -0400

From: Wainer dos Santos Moschetta <wainersm@redhat.com>

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>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Message-Id: <20210430133414.39905-7-wainersm@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
 tests/acceptance/avocado_qemu/__init__.py | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/tests/acceptance/avocado_qemu/__init__.py 
index 3a218057b3..2c4fef3e14 100644
--- a/tests/acceptance/avocado_qemu/__init__.py
+++ b/tests/acceptance/avocado_qemu/__init__.py
@@ -251,6 +251,27 @@ 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 not arg or not value:
+            return
+        if arg not in self.vm.args:
+            self.vm.args.extend([arg, value])
+        else:
+            idx = self.vm.args.index(arg) + 1
+            if idx < len(self.vm.args):
+                self.vm.args[idx] = value
+            else:
+                self.vm.args.append(value)
     def tearDown(self):
         for vm in self._vms.values():

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