[PATCH] run-tests: added '--graph' functionality to store timing data in json file

[Anurag Goel]

# HG changeset patch
# User anuraggoel <anurag.dsps at gmail.com>
# Date 1402941179 -19800
#      Mon Jun 16 23:22:59 2014 +0530
# Node ID c3dacef6c7c12ec1f3a0879af4a28dd72e4ac53b
# Parent  477bc39f2d88a7d38127a3509d3d85cc9b62faee
run-tests: added '--graph' functionality to store timing data in json file

This patch added a new functionality '--graph'. While testing, if '--graph'
is enabled then timing data gets stored in newly created "report.json" file,
in the format of "testname : testtime".

This "report.json" file will further accessed by html/javascript file to
plot graph between testname Vs testime.

diff -r 477bc39f2d88 -r c3dacef6c7c1 tests/run-tests.py
--- a/tests/run-tests.py	Fri Jun 13 14:45:23 2014 +0530
+++ b/tests/run-tests.py	Mon Jun 16 23:22:59 2014 +0530
@@ -58,6 +58,7 @@
 import killdaemons as killmod
 import Queue as queue
 import unittest
+import json
 
 processlock = threading.Lock()
 
@@ -185,6 +186,8 @@
              " (default: $%s or %d)" % defaults['timeout'])
     parser.add_option("--time", action="store_true",
         help="time how long each test takes")
+    parser.add_option("--graph", action="store_true",
+        help="store timing data in 'report.json' file")
     parser.add_option("--tmpdir", type="string",
         help="run tests in the given temporary directory"
              " (implies --keep-tmpdir)")
@@ -1335,6 +1338,14 @@
                 os.environ['PYTHONHASHSEED'])
         if self._runner.options.time:
             self.printtimes(result.times)
+        if self._runner.options.graph:
+            self.getgraph(result.times)
+
+    def getgraph(self, times):
+        fp = open("report.json", "w")
+        fp.writelines(("testreport =", (json.dumps({item[0]:item[1] for item in
+                            times}, indent=2))))
+        fp.close()
 
     def printtimes(self, times):
         self.stream.writeln('# Producing time report')