[PATCH v3 1/5] tests/acceptance: Extract QemuBaseTest from Test

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

The Avocado Test::fetch_asset() is handy to download artifacts
before running tests. The current class is named Test but only
tests system emulation. As we want to test user emulation,
refactor the common code as QemuBaseTest.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 tests/acceptance/avocado_qemu/__init__.py | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/tests/acceptance/avocado_qemu/__init__.py b/tests/acceptance/avocado_qemu/__init__.py
index df167b142cc..4f814047176 100644
--- a/tests/acceptance/avocado_qemu/__init__.py
+++ b/tests/acceptance/avocado_qemu/__init__.py
@@ -155,7 +155,7 @@ def exec_command_and_wait_for_pattern(test, command,
     """
     _console_interaction(test, success_message, failure_message, command + '\r')
 
-class Test(avocado.Test):
+class QemuBaseTest(avocado.Test):
     def _get_unique_tag_val(self, tag_name):
         """
         Gets a tag value, if unique for a key
@@ -188,8 +188,6 @@ def require_accelerator(self, accelerator):
                         "available" % accelerator)
 
     def setUp(self):
-        self._vms = {}
-
         self.arch = self.params.get('arch',
                                     default=self._get_unique_tag_val('arch'))
 
@@ -202,6 +200,25 @@ def setUp(self):
         if self.qemu_bin is None:
             self.cancel("No QEMU binary defined or found in the build tree")
 
+
+    def fetch_asset(self, name,
+                    asset_hash=None, algorithm=None,
+                    locations=None, expire=None,
+                    find_only=False, cancel_on_missing=True):
+        return super(QemuBaseTest, self).fetch_asset(name,
+                        asset_hash=asset_hash,
+                        algorithm=algorithm,
+                        locations=locations,
+                        expire=expire,
+                        find_only=find_only,
+                        cancel_on_missing=cancel_on_missing)
+
+# a.k.a. QemuSystemTest for system emulation...
+class Test(QemuBaseTest):
+    def setUp(self):
+        self._vms = {}
+        super(Test, self).setUp()
+
     def _new_vm(self, *args):
         self._sd = tempfile.TemporaryDirectory(prefix="avo_qemu_sock_")
         vm = QEMUMachine(self.qemu_bin, sock_dir=self._sd.name)
-- 
2.26.2