Submit initial test framework skeleton.

Change-Id: I1c7cdbbf16c137a6739447d2776595725b798b54
Signed-off-by: Stefan Kobza <skobza@cisco.com>
diff --git a/test/resources/libraries/python/VatExecutor.py b/test/resources/libraries/python/VatExecutor.py
new file mode 100644
index 0000000..55a0454
--- /dev/null
+++ b/test/resources/libraries/python/VatExecutor.py
@@ -0,0 +1,84 @@
+# Copyright (c) 2015 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import os
+from ssh import SSH
+from robot.api import logger
+
+__all__ = []
+
+class VatExecutor(object):
+    
+    __TMP_DIR = "/tmp/"
+    __VAT_BIN = "vpe_api_test"
+
+    def __init__(self):
+        self._stdout = None
+        self._stderr = None
+        self._ret_code = None
+
+    def execute_script(self, local_path, node, timeout=10, json_out=True):
+        """Copy local_path script to node, execute it and return result.
+        
+        Returns (rc, stdout, stderr tuple).
+        """
+
+        ssh = SSH()
+        ssh.connect(node)
+
+        local_basename = os.path.basename(local_path)
+        remote_file_path = self.__TMP_DIR + local_basename
+        remote_file_out = remote_file_path + ".out"
+
+        ssh.scp(local_path, remote_file_path)
+
+        cmd = "sudo -S {vat} {json} < {input}".format(vat=self.__VAT_BIN, 
+                json="json" if json_out == True else "",
+                input=remote_file_path)
+        (ret_code, stdout, stderr) = ssh.exec_command(cmd, timeout)
+        self._ret_code = ret_code
+        self._stdout = stdout
+        self._stderr = stderr
+
+        logger.trace("Command '{0}' returned {1}'".format(cmd, self._ret_code))
+        logger.trace("stdout: '{0}'".format(self._stdout))
+        logger.trace("stderr: '{0}'".format(self._stderr))
+
+        #TODO: download vpe_api_test output file
+        self._delete_files(node, remote_file_path, remote_file_out)
+
+    def _delete_files(self, node, *files):
+        ssh = SSH()
+        ssh.connect(node)
+        files = " ".join([str(x) for x in files])
+        ssh.exec_command("rm {0}".format(files))
+
+    def script_should_have_failed(self):
+        if self._ret_code is None:
+            raise Exception("First execute the script!")
+        if self._ret_code == 0:
+            raise AssertionError(
+                    "Script execution passed, but failure was expected")
+
+    def script_should_have_passed(self):
+        if self._ret_code is None:
+            raise Exception("First execute the script!")
+        if self._ret_code != 0:
+            raise AssertionError(
+                    "Script execution failed, but success was expected")
+
+    def get_script_stdout(self):
+        return self._stdout
+
+    def get_script_stderr(self):
+        return self._stderr
+