[Thuban-commits] r2696 - in trunk/thuban: . test

[scm-commit@wald.intevation.org]

Author: bernhard
Date: 2006-09-18 01:19:21 +0200 (Mon, 18 Sep 2006)
New Revision: 2696

Modified:
   trunk/thuban/ChangeLog
   trunk/thuban/test/test_proj.py
Log:
test/test_proj.py: new test_lc_numeric_robustness()


Modified: trunk/thuban/ChangeLog
===================================================================
--- trunk/thuban/ChangeLog	2006-09-15 14:09:17 UTC (rev 2695)
+++ trunk/thuban/ChangeLog	2006-09-17 23:19:21 UTC (rev 2696)
@@ -1,3 +1,6 @@
+2006-09-18 Bernhard Reiter <bernhard at intevation.de>
+	* test/test_proj.py: new test_lc_numeric_robustness()
+
 2006-09-15 Bernhard Reiter <bernhard at intevation.de>
 
 	* README: added RXP and pyRXP as optional for tests.

Modified: trunk/thuban/test/test_proj.py
===================================================================
--- trunk/thuban/test/test_proj.py	2006-09-15 14:09:17 UTC (rev 2695)
+++ trunk/thuban/test/test_proj.py	2006-09-17 23:19:21 UTC (rev 2696)
@@ -14,8 +14,10 @@
 # $Id$
 
 import unittest
+import locale
 import os
 
+import localessupport
 import xmlsupport
 import support
 support.initthuban()
@@ -96,6 +98,31 @@
                            "ellps=clrk66"])
         self.assertEquals(proj.GetProjectedUnits(), PROJ_UNITS_DEGREES)
 
+    def test_lc_numeric_robustness(self):
+        """Test if an LC_NUMERIC local with comma as decimal_point will work.
+
+        Some versions of proj are not robust against this.
+        Starting with Python 2.4 there is a different behaviour when
+        calling C extensions and now they will see changes locales settings
+        which might tickle the bug in proj.
+        """
+        params = ["proj=latlong", "to_meter=0.01745", "ellps=clrk66"]
+
+        oldlocale = localessupport.setdecimalcommalocale()
+        if oldlocale == None:
+            raise support.SkipTest(
+                    "No locale with comma as decimal_point found.")
+
+        proj = Projection(params)
+        result1 =  proj.Forward(1,1)
+
+        locale.setlocale(locale.LC_NUMERIC, "C")
+        proj = Projection(params)
+        result2= proj.Forward(1,1)
+
+        locale.setlocale(locale.LC_NUMERIC, oldlocale)
+        self.assertFloatSeqEqual(result1, result2, epsilon = 1e-5 )
+
     def test_get_projection_units_normal(self):
         """Test Projection.GetProjectedUnits() for normal projection"""
         proj = Projection(["zone=26", "proj=utm", "ellps=clrk66"])