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import unittest |
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import ascpy |
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import math |
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|
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class AscendTest(unittest.TestCase): |
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|
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def setUp(self): |
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import ascpy |
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self.L = ascpy.Library() |
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|
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def tearDown(self): |
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self.L.clear() |
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del self.L |
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|
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def testloading(self): |
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pass |
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|
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def testsystema4l(self): |
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self.L.load('system.a4l') |
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|
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def testatomsa4l(self): |
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self.L.load('atoms.a4l') |
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|
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def testlog10(self): |
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self.L.load('johnpye/testlog10.a4c') |
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T = self.L.findType('testlog10') |
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M = T.getSimulation('sim') |
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M.solve(ascpy.Solver("QRSlv"),ascpy.SolverReporter()) |
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M.run(T.getMethod('self_test')) |
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|
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def testListIntegrators(self): |
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I = ascpy.Integrator.getEngines() |
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s1 = sorted([str(i) for i in I.values()]) |
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s2 = sorted(['IDA','LSODE']) |
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assert s1==s2 |
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|
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# this routine is reused by both testIDA and testLSODE |
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def _testIntegrator(self,integratorname): |
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self.L.load('johnpye/shm.a4c') |
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M = self.L.findType('shm').getSimulation('sim') |
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print M.sim.getChildren() |
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assert float(M.sim.x) == 10.0 |
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assert float(M.sim.v) == 0.0 |
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t_end = math.pi |
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|
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I = ascpy.Integrator(M) |
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I.setReporter(ascpy.IntegratorReporterNull(I)) |
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I.setEngine(integratorname); |
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I.setLinearTimesteps(ascpy.Units("s"), 0.0, t_end, 100); |
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I.setMinSubStep(0.0005); # these limits are required by IDA at present (numeric diff) |
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I.setMaxSubStep(0.02); |
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I.setInitialSubStep(0.001); |
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I.setMaxSubSteps(200); |
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if(integratorname=='IDA'): |
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I.setParameter('autodiff',False) |
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I.analyse(); |
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I.solve(); |
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print "At end of simulation," |
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print "x = %f" % M.sim.x |
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print "v = %f" % M.sim.v |
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assert abs(float(M.sim.x) + 10) < 1e-2 |
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assert abs(float(M.sim.v)) < 1e-2 |
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assert I.getNumObservedVars() == 3 |
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|
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def testInvalidIntegrator(self): |
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self.L.load('johnpye/shm.a4c') |
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M = self.L.findType('shm').getSimulation('sim') |
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I = ascpy.Integrator(M) |
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try: |
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I.setEngine('___NONEXISTENT____') |
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except IndexError: |
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return |
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self.fail("setEngine did not raise error!") |
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|
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def testLSODE(self): |
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self._testIntegrator('LSODE') |
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|
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def testIDA(self): |
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self._testIntegrator('IDA') |
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|
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def testIDAparameters(self): |
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self.L.load('johnpye/shm.a4c') |
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M = self.L.findType('shm').getSimulation('sim') |
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I = ascpy.Integrator(M) |
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I.setEngine('IDA') |
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P = I.getParameters() |
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for p in P: |
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print p.getName(),"=",p.getValue() |
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assert len(P)==5 |
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assert P[0].isStr() |
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assert P[0].getName()=="linsolver" |
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assert P[0].getValue()=='DENSE' |
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assert P[1].getName()=="autodiff" |
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assert P[1].getValue()==True |
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assert P[4].getName()=="atolvect" |
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assert P[4].getBoolValue() == True |
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P[1].setBoolValue(False) |
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assert P[1].getBoolValue()==False |
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I.setParameters(P) |
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for p in I.getParameters(): |
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print p.getName(),"=",p.getValue() |
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assert I.getParameterValue('autodiff')==False |
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I.setParameter('autodiff',True) |
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try: |
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v = I.getParameterValue('nonexist') |
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except KeyError: |
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pass |
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else: |
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self.fail('Failed to trip invalid Integrator parameter') |
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|
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def testIDAdenx(self): |
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self.L.load('johnpye/idadenx.a4c') |
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M = self.L.findType('idadenx').getSimulation('sim') |
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I = ascpy.Integrator(M) |
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I.setEngine('IDA') |
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I.setReporter(ascpy.IntegratorReporterConsole(I)) |
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I.setLogTimesteps(ascpy.Units("s"), 0.4, 4e10, 11); |
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I.setMaxSubStep(0); |
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I.setInitialSubStep(0); |
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I.setMaxSubSteps(0); |
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I.setParameter('autodiff',True) |
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I.setParameter('linsolver','DENSE') |
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I.analyse() |
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I.solve() |
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assert abs(float(M.sim.y1) - 5.1091e-08) < 1e-10; |
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assert abs(float(M.sim.y2) - 2.0437e-13) < 1e-15; |
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assert abs(float(M.sim.y3) - 1.0) < 1e-5; |
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|
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def testIDAdenxSPGMR(self): |
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self.L.load('johnpye/idadenx.a4c') |
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M = self.L.findType('idadenx').getSimulation('sim') |
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I = ascpy.Integrator(M) |
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I.setEngine('IDA') |
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I.setReporter(ascpy.IntegratorReporterConsole(I)) |
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I.setLogTimesteps(ascpy.Units("s"), 0.4, 4e10, 11); |
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I.setMaxSubStep(0); |
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I.setInitialSubStep(0); |
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I.setMaxSubSteps(0); |
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I.setParameter('autodiff',True) |
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I.setParameter('linsolver','SPGMR') |
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I.setParameter('gsmodified',False) |
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I.analyse() |
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I.solve() |
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assert abs(float(M.sim.y1) - 5.1091e-08) < 1e-10; |
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assert abs(float(M.sim.y2) - 2.0437e-13) < 1e-15; |
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assert abs(float(M.sim.y3) - 1.0) < 1e-5; |
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|
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def testIDAkryx(self): |
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self.L.load('johnpye/idakryx.a4c') |
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M = self.L.findType('idakryx').getSimulation('sim') |
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I = ascpy.Integrator(M) |
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I.setEngine('IDA') |
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I.setReporter(ascpy.IntegratorReporterConsole(I)) |
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|
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# move code above down here if you want to temporarily avoid testing it |
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class NotToBeTested: |
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def nothing(self): |
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pass |
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|
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if __name__=='__main__': |
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unittest.main() |
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