Separate tests into folders.

Build in a matrix?

tests/base/test_regularization.py

@@ -0,0 +1,34 @@
+import numpy as np
+import unittest
+from SimPEG import *
+from scipy.sparse.linalg import dsolve
+import inspect
+
+
+class RegularizationTests(unittest.TestCase):
+
+    def setUp(self):
+        self.mesh2 = Mesh.TensorMesh([3, 2])
+
+    def test_regularization(self):
+        for R in dir(Regularization):
+            r = getattr(Regularization, R)
+            if not inspect.isclass(r): continue
+            if not issubclass(r, Regularization.BaseRegularization):
+                continue
+            # if 'Regularization' not in R: continue
+            mapping = r.mapPair(self.mesh2)
+            reg = r(self.mesh2, mapping=mapping)
+            m = np.random.rand(mapping.nP)
+            reg.mref = m[:]*np.mean(m)
+
+            print 'Check:', R
+            passed = Tests.checkDerivative(lambda m : [reg.eval(m), reg.evalDeriv(m)], m, plotIt=False)
+            self.assertTrue(passed)
+            print 'Check 2 Deriv:', R
+            passed = Tests.checkDerivative(lambda m : [reg.evalDeriv(m), reg.eval2Deriv(m)], m, plotIt=False)
+            self.assertTrue(passed)
+
+
+if __name__ == '__main__':
+    unittest.main()