source: sasview/park_integration/test/small_test.py @ 3b2b031

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 3b2b031 was fd6b789, checked in by Gervaise Alina <gervyh@…>, 15 years ago

refactor fit engine set_model can receive sans.model or park.model has a parameter;set_del has a new parameters constraints

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