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[tor-commits] [ooni-probe/master] Add postProcessor support to NetTest



commit 9f09874c8313245bfc4da3ed7d2d9d266f36bf1f
Author: aagbsn <aagbsn@xxxxxxxx>
Date:   Wed Sep 18 16:22:33 2013 +0200

    Add postProcessor support to NetTest
    
    If a NetTestCase has multiple test_ methods, then the report write shall
    not occur until all of the individual Measurements have completed.
    
    This also changes the postProcessor API slightly; postProcessors are now
    expected to return a report instance. If a postProcessor is not
    supplied, then the report object from the instanced NetTestCase class is
    passed to Report.write()
---
 ooni/nettest.py |   34 ++++++++++++++++++++++++----------
 ooni/tasks.py   |    6 +++---
 2 files changed, 27 insertions(+), 13 deletions(-)

diff --git a/ooni/nettest.py b/ooni/nettest.py
index f68148b..eb68182 100644
--- a/ooni/nettest.py
+++ b/ooni/nettest.py
@@ -537,13 +537,6 @@ class NetTest(object):
             measurement.done.addCallback(self.director.measurementSucceeded)
             measurement.done.addErrback(self.director.measurementFailed,
                                         measurement)
-
-        if self.report:
-            measurement.done.addBoth(self.report.write)
-
-        if self.report and self.director:
-            measurement.done.addBoth(self.doneReport)
-
         return measurement
 
     @defer.inlineCallbacks
@@ -562,12 +555,33 @@ class NetTest(object):
         for test_class, test_methods in self.testCases:
             # load the input processor as late as possible
             for input in test_class.inputs:
+                klass = test_class()
+                measurements = []
                 for method in test_methods:
                     log.debug("Running %s %s" % (test_class, method))
-                    measurement = self.makeMeasurement(test_class, method, input)
+                    measurement = self.makeMeasurement(klass, method, input)
+                    measurements.append(measurement.done)
                     self.state.taskCreated()
                     yield measurement
 
+                # When the measurement.done callbacks have all fired
+                # call the postProcessor before writing the report
+                if self.report:
+                    post = defer.DeferredList(measurements)
+
+                    # Call the postProcessor, which must return a single report
+                    # or a deferred
+                    post.addCallback(klass.postProcessor)
+                    def noPostProcessor(failure, report):
+                        failure.trap(NoPostProcessor)
+                        return report
+                    post.addErrback(noPostProcessor, klass.report)
+                    post.addCallback(self.report.write)
+
+                if self.report and self.director:
+                    #ghetto hax to keep NetTestState counts are accurate
+                    [post.addBoth(self.doneReport) for _ in measurements]
+
         self.state.allTasksScheduled()
 
 class NetTestCase(object):
@@ -654,10 +668,10 @@ class NetTestCase(object):
         """
         pass
 
-    def postProcessor(self, report):
+    def postProcessor(self, measurements):
         """
         Subclass this to do post processing tasks that are to occur once all
-        the test methods have been called. Once per input.
+        the test methods have been called once per input.
         postProcessing works exactly like test methods, in the sense that
         anything that gets written to the object self.report[] will be added to
         the final test report.
diff --git a/ooni/tasks.py b/ooni/tasks.py
index 52e9164..0c7f34e 100644
--- a/ooni/tasks.py
+++ b/ooni/tasks.py
@@ -110,9 +110,9 @@ class Measurement(TaskWithTimeout):
         self.testInstance.input = test_input
         if not self.testInstance.report:
             self.testInstance.report = {'input': test_input}
-        self.testInstance._start_time = time.time()
-        self.testInstance._setUp()
-        self.testInstance.setUp()
+            self.testInstance._setUp()
+            self.testInstance._start_time = time.time()
+            self.testInstance.setUp()
 
         self.netTestMethod = getattr(self.testInstance, test_method)
 



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