[GNUnet-SVN] [taler-bank] branch master updated: measuring time to query a user's history

[gnunet]

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marcello pushed a commit to branch master
in repository bank.

The following commit(s) were added to refs/heads/master by this push:
     new c8f9b7a  measuring time to query a user's history
c8f9b7a is described below

commit c8f9b7aa165b19c9b8c5bb61562d000ff5996311
Author: Marcello Stanisci <address@hidden>
AuthorDate: Fri Dec 1 18:27:44 2017 +0100

    measuring time to query a user's history
---
 talerbank/app/tests.py | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/talerbank/app/tests.py b/talerbank/app/tests.py
index 63de569..8baed5a 100644
--- a/talerbank/app/tests.py
+++ b/talerbank/app/tests.py
@@ -15,6 +15,8 @@
 #  @author Marcello Stanisci
 
 import json
+import timeit
+import logging
 from django.test import TestCase, Client
 from django.core.urlresolvers import reverse
 from django.conf import settings
@@ -404,3 +406,39 @@ class ParseAmountTestCase(TestCase):
             return
         # make sure the control doesn't get here
         self.assertEqual(True, False)
+
+class MeasureHistory(TestCase):
+
+    def setUp(self):
+        self.user_bankaccount0 = BankAccount(
+            user=User.objects.create_user(username='U0'),
+            amount=Amount(settings.TALER_CURRENCY, 3000))
+        self.user_bankaccount = BankAccount(
+            user=User.objects.create_user(username='U'))
+        self.user_bankaccount.save()
+        self.user_bankaccount0.save()
+
+        self.ntransfers = 1000
+
+        # Make sure logging level is WARNING, otherwise the loop
+        # will overwhelm the console.
+        logging.getLogger().setLevel(logging.WARNING)
+        for i in range(self.ntransfers):
+            wire_transfer(Amount(settings.TALER_CURRENCY, 1),
+                          self.user_bankaccount0,
+                          self.user_bankaccount,
+                          "bulk")
+
+    def test_extract_history(self):
+
+        # Measure the time extract_history() needs to retrieve
+        # ~ntransfers records.
+        timer = timeit.Timer(stmt="extract_history(self.user_bankaccount0)",
+                             setup="from talerbank.app.views import 
extract_history",
+                             globals=locals())
+        total_time = timer.timeit(number=1)
+        logging.getLogger().setLevel(logging.INFO)
+        logging.getLogger().info("%d records needed %.3f secs" \
+                                 % (self.ntransfers, total_time))
+        allowed_time_per_record = 0.0017
+        self.assertLess(total_time, self.ntransfers*allowed_time_per_record)

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