source: sasview/test/sasfit/test/utest_small_test.py @ c3caa49

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload
Last change on this file since c3caa49 was c3caa49, checked in by pkienzle, 9 years ago

rename park_integration tests to sasfit tests

  • Property mode set to 100644
File size: 1.4 KB
Line 
1"""
2    Unit tests for fitting module
3"""
4import unittest
5import math
6from sas.fit.Fitting import Fit
7from sas.dataloader.loader import Loader
8import bumps.fitters
9bumps.fitters.FIT_DEFAULT = 'lm'
10
11class testFitModule(unittest.TestCase):
12    """ test fitting """
13    def test_cylinder_fit(self):
14        """ Simple cylinder model fit """
15       
16        out= Loader().load("cyl_400_20.txt")
17       
18        fitter = Fit('bumps')
19        # Receives the type of model for the fitting
20        from sas.models.CylinderModel import CylinderModel
21        model  = CylinderModel()
22        model.setParam('sldCyl', 1)
23        model.setParam('sldSolv', 0)
24        model.setParam('scale', 1e-10)
25
26        pars1 =['length','radius','scale']
27        fitter.set_data(out,1)
28        fitter.set_model(model,1,pars1, constraints=())
29        fitter.select_problem_for_fit(id=1,value=1)
30        result1, = fitter.fit()
31        #print result1
32        #print result1.__dict__
33
34        self.assert_(result1)
35        self.assertTrue(len(result1.pvec)>0 or len(result1.pvec)==0 )
36        self.assertTrue(len(result1.stderr)> 0 or len(result1.stderr)==0)
37
38        self.assertTrue( math.fabs(result1.pvec[0]-400.0)/3.0 < result1.stderr[0] )
39        self.assertTrue( math.fabs(result1.pvec[1]-20.0)/3.0  < result1.stderr[1] )
40        self.assertTrue( math.fabs(result1.pvec[2]-9.0e-12)/3.0   < result1.stderr[2] )
41        self.assertTrue( result1.fitness < 1.0 )
42       
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