Added some unit tests for the backend configurator.

sknn/__init__.py

@@ -42,7 +42,7 @@ def __getattr__(self, name):
         if name.endswith('32'):
             flags = ',floatX=float32'
         if name.endswith('64'):
-            flags = ',floatX=float32'
+            flags = ',floatX=float64'
 
         if name.startswith('cpu'):
             return self.configure('device=cpu'+flags)

sknn/tests/test_backend.py

@@ -0,0 +1,43 @@
+import unittest
+from nose.tools import (assert_in, assert_equal)
+
+import os
+import sys
+
+import sknn
+
+
+class TestBackendPseudoModule(unittest.TestCase):
+
+    def setUp(self):
+        if 'THEANO_FLAGS' in os.environ:
+            del os.environ['THEANO_FLAGS']
+        for name in sys.modules.keys():
+            if name.startswith('theano'):
+                del sys.modules[name]
+        sys.modules['sknn.backend'].configured = False
+
+    def test_TheanoWarning(self):
+        pass
+
+    def _check(self, flags):
+        assert_in('THEANO_FLAGS', os.environ)
+        variable = os.environ['THEANO_FLAGS']
+        for f in flags:
+            assert_in(f, variable)
+
+    def test_FlagsGPU32(self):
+        from sknn.backend import gpu32
+        self._check(['floatX=float32','device=gpu'])
+
+    def test_FlagsCPU32(self):
+        from sknn.backend import cpu32
+        self._check(['floatX=float32','device=cpu'])
+
+    def test_FlagsGPU64(self):
+        from sknn.backend import gpu64
+        self._check(['floatX=float64','device=gpu'])
+
+    def test_FlagsCPU64(self):
+        from sknn.backend import cpu64
+        self._check(['floatX=float64','device=cpu'])