add `get_machine_types()` to return list of supported machine types
by the qemu binary.

Signed-off-by: Balamuruhan S <bala24@linux.ibm.com>
---
 tests/acceptance/avocado_qemu/__init__.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tests/acceptance/avocado_qemu/__init__.py b/tests/acceptance/avocado_qemu/__init__.py
index bd41e0443c..42a1b572bd 100644
--- a/tests/acceptance/avocado_qemu/__init__.py
+++ b/tests/acceptance/avocado_qemu/__init__.py
@@ -85,6 +85,12 @@ class Test(avocado.Test):
             self._vms[name] = self._new_vm(*args)
         return self._vms[name]
 
+    def get_machine_types(self):
+        cmd = "%s -machine ?" % self.qemu_bin
+        output = avocado.utils.process.getoutput(cmd).split("\n")
+        output.remove("Supported machines are:")
+        return [each.split()[0] for each in output]
+
     def tearDown(self):
         for vm in self._vms.values():
             vm.shutdown()
-- 
2.14.5