summary refs log tree commit diff stats
diff options
context:
space:
mode:
-rw-r--r--tests/qemu-iotests/iotests.py26
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 7233983f3c..07fa1626a0 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -160,6 +160,32 @@ class Timeout:
     def timeout(self, signum, frame):
         raise Exception(self.errmsg)
 
+
+class FilePath(object):
+    '''An auto-generated filename that cleans itself up.
+
+    Use this context manager to generate filenames and ensure that the file
+    gets deleted::
+
+        with TestFilePath('test.img') as img_path:
+            qemu_img('create', img_path, '1G')
+        # migration_sock_path is automatically deleted
+    '''
+    def __init__(self, name):
+        filename = '{0}-{1}'.format(os.getpid(), name)
+        self.path = os.path.join(test_dir, filename)
+
+    def __enter__(self):
+        return self.path
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        try:
+            os.remove(self.path)
+        except OSError:
+            pass
+        return False
+
+
 class VM(qtest.QEMUQtestMachine):
     '''A QEMU VM'''