CSIT-1186: Add srv6 NDRPDR suites

Delete the corresponding ndrpdrdisc suites.

MRR suites are also edited,
to make them less different from NDRPDR suites.

Now, there is a script to re-generate testcases of selected suites.
For that, resources/libraries/python/autogen is created,
with Regenerator holding the most of script logic.

The script looks at files matching a glob expression,
reuses a "prolog", but overwites test cases with the default template
and hardcoded set of testcase arguments.

Also, handling of overhead size has been simplified,
using new keyword Get Max Rate And Jumbo And Handle Multi Seg.

Default value for search timeout is increased to 12 minutes
to make timeout failures less frequent.

Change-Id: I394ad61f262b3078e5ca719034b15ada48987ee0
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/resources/libraries/python/autogen/Testcase.py b/resources/libraries/python/autogen/Testcase.py
new file mode 100644
index 0000000000..4f92e6c2e1
--- /dev/null
+++ b/resources/libraries/python/autogen/Testcase.py
@@ -0,0 +1,70 @@
+# Copyright (c) 2018 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.
+
+"""Module defining utilities for testcase autogeneration."""
+
+from string import Template
+
+
+class Testcase(object):
+    """Class containing a template string and a substitution method."""
+
+    def __init__(self, template_string):
+        """Construct instance by storing template given by string.
+
+        :param template_string: Template string to generate test case code with.
+            See string.Template documentation for template string syntax.
+            Only the following placeholders are supported:
+            - cores_num - Number of cores as robot number, example: "${2}".
+            - cores_str - Number of physical cores to use, example: "2".
+            - frame_num - Framesize as a number, example: "${74}".
+            - frame_str - Framesize in upper case, example: "74B".
+            - tc_num - Start of testcase name, example: "tc04".
+        :type template_string: str
+        """
+        self.template = Template(template_string)
+
+    def generate(self, num, framesize, phy_cores):
+        """Return string of test case code with placeholders filled.
+
+        Fail if there are placeholders left unfilled.
+
+        :param num: Test case number. Example value: 4.
+        :param framesize: Imix string or numeric frame size. Example: 74.
+        :param phy_cores: Number of physical cores to use. Example: 2.
+        :type num: int
+        :type framesize: str or int
+        :type phy_cores: int or str
+        :returns: Filled template, usable as test case code.
+        :rtype: str
+        """
+        try:
+            fs = int(framesize)
+            subst_dict = {
+                "frame_num": "${%d}" % fs,
+                "frame_str": "%dB" % fs
+            }
+        except ValueError:  # Assuming an IMIX string.
+            subst_dict = {
+                "frame_num": str(framesize),
+                "frame_str": "IMIX"
+            }
+        cores_str = str(phy_cores)
+        cores_num = int(cores_str)
+        subst_dict.update(
+            {
+                "cores_num": "${%d}" % cores_num,
+                "cores_str": phy_cores,
+                "tc_num": "tc{num:02d}".format(num=num)
+            })
+        return self.template.substitute(subst_dict)