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"""
Testing python specific API for Minimizer related classes.
"""
import unittest
import bornagain as ba
class MinimizerAPITest(unittest.TestCase):
def test_ParameterAttribute(self):
"""
Testing p.value attribute
"""
par = ba.Parameter("par", 1)
self.assertEqual(par.value, 1)
par.value = 42.0
self.assertEqual(par.value, 42)
def test_ParametersSetIterator(self):
"""
Testing of python iterator over defined fit parameters.
"""
pars = ba.Parameters()
self.assertEqual(pars.size(), 0)
pars.add(ba.Parameter("par0", 1, ba.AttLimits.limitless()))
pars.add(ba.Parameter("par1", 2, ba.AttLimits.limitless()))
expected_names = ["par0", "par1"]
for index, p in enumerate(pars):
self.assertEqual(p.name(), expected_names[index])
def test_ParametersAdd(self):
"""
Testing Parameters::add method
"""
params = ba.Parameters()
params.add("par0", 0)
params.add("par1", 1, min=1)
params.add("par2", 2, max=2)
params.add("par3", 3, min=1, max=2)
params.add("par4", 4, vary=False)
self.assertTrue(params["par0"].limits().isLimitless())
self.assertTrue(params["par1"].limits().isLowerLimited())
self.assertEqual(params["par1"].limits().min(), 1)
self.assertTrue(params["par2"].limits().isUpperLimited())
self.assertEqual(params["par2"].limits().max(), 2)
self.assertTrue(params["par3"].limits().isLimited())
self.assertEqual(params["par3"].limits().min(), 1)
self.assertEqual(params["par3"].limits().max(), 2)
self.assertTrue(params["par4"].limits().isFixed())
if __name__ == '__main__':
unittest.main()
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