Initial commit for progress calculator test refactoring

Change-Id: I19c61d85ae8d1667fe841621af6abad2d3c7015d

specs/2.0/refactor_progress_calculator_integration_test.rst

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+..
+ This work is licensed under a Creative Commons Attribution 3.0 Unported
+ License.
+
+ http://creativecommons.org/licenses/by/3.0/legalcode
+
+=================================================
+Refactor Integration Test for Progress Calculator
+=================================================
+
+Include the URL of your launchpad blueprint:
+
+https://blueprints.launchpad.net/compass/+spec/new-integration-test-for-progress-calculator
+
+To decrease the amount of code base of progress calculator integration test
+and improve code performance, by creating a log-file generator.
+
+Problem description
+===================
+
+In the previous integration test, log templates have been used which contains
+a large amount of unnecessary lines of code. Basiclly, the log file templates
+are stored in data/ under same directory as test code. Everytime integration
+test is ran, the log file templates will be copied to /tmp/ for the further
+process.
+
+The issue with this are:
+*Increasing the workload due to the redundant lines in log templates.*
+*Reducing code performance.*
+
+Proposed change
+===============
+
+This blueprint proposes to create a log-file generator to only gather lines
+with critical keys.
+
+Dividing the install progress in to five parts. Each part represents 20%
+of the progress which is also a checkpoint. To generate desired log files,
+a dictionary will be used to store log information.
+
+Use log name as the key and content as the value.
+
+Example:
+
+.. code-block:: python
+
+    file_line_mapping = {
+        "file_1": ["line_1", "line_2", "line_3"],
+        "file_2": ["line_4", "line_5", "line_6"]
+    }
+
+Here `file_line_mapping` is a dictionary that provides the key lines of each
+file. There will be another dictionary that will provide the position of each
+check_point.
+
+Example:
+
+.. code-block:: python
+
+   check_points = {
+       "check_point_1": {
+           "percentage": 0.2,
+           "position": {
+               "file": "file_1",
+               "line": "line_2"
+           },
+       },
+       "check_point_2": {
+           "percentage": 0.4,
+           "position": {
+               "file": "file_2",
+               "line": "line_4"
+           }
+        }
+    }
+
+For example, if we are going to test "check_point_2", the coresponding log
+file should be generated for check_point_2. Using the example above, the
+generator will first locate the position of "check_point_2", then go to
+"file_line_mappping". It will create a file for each key value pair prior
+to check_point_2's position, where each file will be filled with all the
+lines in its list. The generator will stop creating files and writing
+lines when it reaches the check_point's position.
+
+In this case, it is clear that when the progress reaches each checkpoint,
+what the current state and percentage of the installation are.
+
+Instead of using log file template which has thoudsans of lines, log files
+generated by this strategy with only "progress calculator understandable"
+content would signaficantly reduce the code base.
+
+
+
+Alternatives
+------------
+
+None
+
+Data model impact
+-----------------
+
+None
+
+REST API impact
+---------------
+
+None
+
+Security impact
+---------------
+
+None
+
+Notifications impact
+--------------------
+
+None
+
+Other end user impact
+---------------------
+
+None
+
+Performance Impact
+------------------
+
+None
+
+Other deployer impact
+---------------------
+
+None
+
+Developer impact
+----------------
+
+None
+
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Lei Lei
+
+Work Items
+----------
+
++ Create a dictionary with necessary information for the log file.
+
++ Create a dictionary for check_point and log position mapping.
+
++ Write generater logic to enerate proper logs corresponding to checkpoint mapping dictionary.
+
++ Such generator will create a directory like this:
+  /tmp/mocklogs/*uuid.uuid4()*/anamon/checkpoint_*number*/server1.1/
+  put the log files in the path.
+
+
+
+Dependencies
+============
+
+None
+
+Testing
+=======
+
+Major impact on testing to accompany this proposal. Testing of progress calculator will be changed.
+
+Documentation Impact
+====================
+
+None
+
+References
+==========
+
+None