Regularization is on the Model, so it needs to take that as input.

Testing is completed on every SimPEG regularization object by default.

SimPEG/Tests/test_regularization.py

@@ -0,0 +1,30 @@
+import numpy as np
+import unittest
+from SimPEG import *
+from TestUtils import checkDerivative
+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
+            print 'Check:', R
+            model = r.modelPair(self.mesh2)
+            reg = r(self.mesh2, model)
+            m = model.example()
+            passed = checkDerivative(lambda m : [reg.modelObj(m), reg.modelObjDeriv(m)], m, plotIt=False)
+            self.assertTrue(passed)
+
+
+if __name__ == '__main__':
+    unittest.main()