[PATCH V6] run-tests: added '--json' functionality to store test result in json file

[Anurag Goel]

# HG changeset patch
# User anuraggoel <anurag.dsps at gmail.com>
# Date 1408740221 -19800
#      Sat Aug 23 02:13:41 2014 +0530
# Node ID 48884fcbedc1e04e8f34e39bdc1cf7a7fd352408
# Parent  91464337202e467eb2a6d4a334b9941abf42ef16
run-tests: added '--json' functionality to store test result in json file

This patch added a new functionality '--json'. While testing, if '--json'
is enabled then test result data gets stored in newly created "report.json"
file in the following format.

testreport ={
    "test-success.t": {
        "result": "success",
        "time": "2.041"
    }
    "test-failure.t": {
        "result": "failure",
        "time": "4.430"
    }
    "test-skip.t": {
        "result": "skip"
            "time": "3.754"
    }
}

This "report.json" file will further accessed by html/javascript file for
graph usage.

diff -r 91464337202e -r 48884fcbedc1 tests/run-tests.py
--- a/tests/run-tests.py	Thu Aug 21 16:23:24 2014 +0530
+++ b/tests/run-tests.py	Sat Aug 23 02:13:41 2014 +0530
@@ -184,6 +184,8 @@
     parser.add_option("-t", "--timeout", type="int",
         help="kill errant tests after TIMEOUT seconds"
              " (default: $%s or %d)" % defaults['timeout'])
+    parser.add_option("--json", action="store_true",
+        help="store test result data in 'report.json' file")
     parser.add_option("--time", action="store_true",
         help="time how long each test takes")
     parser.add_option("--tmpdir", type="string",
@@ -1419,6 +1421,40 @@
             finally:
                 xuf.close()
 
+        if self._runner.options.json:
+            try:
+                import simplejson as json
+
+                fp = open(os.path.join(self._runner._testdir,
+                          'report.json'), 'w')
+                try:
+                    timest = []
+                    for test, cuser, csys, real in result.times:
+                        timest.append((test, real))
+
+                    timesd = dict(timest)
+
+                    outcome = []
+                    for tc in result.successes:
+                        testresult = {'result': 'success',
+                                 'time': ('%0.3f' % timesd[tc.name])}
+                        outcome.append((tc.name, testresult))
+                    for tc, err in sorted(result.faildata.iteritems()):
+                        testresult = {'result': 'failure',
+                                 'time': ('%0.3f' % timesd[tc])}
+                        outcome.append((tc, testresult))
+                    for tc, reason in result.skipped:
+                        testresult = {'result': 'skip',
+                                 'time': ('%0.3f' % timesd[tc.name])}
+                        outcome.append((tc.name, testresult))
+                    testdata = dict(outcome)
+                    fp.writelines(("testreport =", (json.dumps(testdata,
+                                    sort_keys=True, indent=4))))
+                finally:
+                    fp.close()
+            except ImportError:
+                pass
+
         self._runner._checkhglib('Tested')
 
         self.stream.writeln('# Ran %d tests, %d skipped, %d warned, %d failed.'