[RFC PATCH 3/4] tests/functional: Add a OS level migration test for pseries

[Fabiano Rosas <farosas@suse.de>]

There's currently no OS level test for ppc64le. Add one such test by
reusing the boot level tests that are already present.

The test boots the source machine, waits for it to reach a mid-boot
message, migrates and checks that the destination has reached the
final boot message (VFS error due to no disk).

Signed-off-by: Fabiano Rosas <farosas@suse.de>
---
 tests/functional/test_ppc64_pseries.py | 41 ++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/tests/functional/test_ppc64_pseries.py b/tests/functional/test_ppc64_pseries.py
index 67057934e8..7a7e0fe8ae 100755
--- a/tests/functional/test_ppc64_pseries.py
+++ b/tests/functional/test_ppc64_pseries.py
@@ -9,6 +9,8 @@
 
 from qemu_test import QemuSystemTest, Asset
 from qemu_test import wait_for_console_pattern
+from qemu_test.migration import Migration
+from qemu_test.ports import Ports
 
 class pseriesMachine(QemuSystemTest):
 
@@ -87,5 +89,44 @@ def test_ppc64_linux_big_boot(self):
         wait_for_console_pattern(self, console_pattern, self.panic_message)
         wait_for_console_pattern(self, self.good_message, self.panic_message)
 
+    def test_ppc64_linux_migration(self):
+        with Ports() as ports:
+            port = ports.find_free_port()
+            if port is None:
+                self.skipTest('Failed to find a free port')
+        uri = 'tcp:localhost:%u' % port
+
+        kernel_path = self.ASSET_KERNEL.fetch()
+        kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE
+
+        self.set_machine('pseries')
+
+        dest_vm = self.get_vm('-incoming', uri, name="dest-qemu")
+        dest_vm.add_args('-smp', '4')
+        dest_vm.add_args('-nodefaults')
+        dest_vm.add_args('-kernel', kernel_path,
+                         '-append', kernel_command_line)
+        dest_vm.set_console()
+        dest_vm.launch()
+
+        source_vm = self.get_vm(name="source-qemu")
+        source_vm.add_args('-smp', '4')
+        source_vm.add_args('-nodefaults')
+        source_vm.add_args('-kernel', kernel_path,
+                           '-append', kernel_command_line)
+        source_vm.set_console()
+        source_vm.launch()
+
+        # ensure the boot has reached Linux
+        console_pattern = 'smp: Brought up 1 node, 4 CPUs'
+        wait_for_console_pattern(self, console_pattern, self.panic_message,
+                                 vm=source_vm)
+
+        Migration().migrate(self, source_vm, dest_vm, uri, self.timeout)
+
+        # ensure the boot proceeds after migration
+        wait_for_console_pattern(self, self.good_message, self.panic_message,
+                                 vm=dest_vm)
+
 if __name__ == '__main__':
     QemuSystemTest.main()
-- 
2.35.3