def test_fmi_2_0_run_simulation_without_rollback(self):
import math
model_name = 'zigzag2'
fmu = fmippim.RollbackFMU( FMU_URI_PRE + model_name, model_name)
status = fmu.instantiate( 'zigzag1' )
self.assertEqual( status, fmippim.fmiOK )
status = fmu.setRealValue( 'k', 1.0 )
self.assertEqual( status, fmippim.fmiOK )
status = fmu.initialize()
self.assertEqual( status, fmippim.fmiOK )
t = 0.0
step_size = 0.0025
tstop = 1.0
x = -1.0
while ( ( t + step_size ) - tstop < EPS_TIME ):
t = fmu.integrate( t + step_size )
x = fmu.getRealValue( 'x' )
self.assertEqual( fmu.getLastStatus(), fmippim.fmiOK )
t = fmu.getTime();
self.assertTrue( math.fabs( t - tstop ) < step_size/2 )
x = fmu.getRealValue( 'x' )
self.assertEqual( fmu.getLastStatus(), fmippim.fmiOK )
# with an eventsearchprecision of 1.0e-4, require the same accuracy for x.
self.assertTrue( math.fabs( x - 1.0 ) < 1e-4 )
def test_fmi_1_0_run_simulation_with_rollback_2(self):
import math
model_name = 'zigzag'
fmu = fmippim.RollbackFMU( FMU_URI_PRE + model_name, model_name)
status = fmu.instantiate( 'zigzag1' )
self.assertEqual( status, fmippim.fmiOK )
status = fmu.setRealValue( 'k', 1.0 )
self.assertEqual( status, fmippim.fmiOK )
status = fmu.initialize()
self.assertEqual( status, fmippim.fmiOK )
t = 0.0
step_size = 0.0025
tstop = 0.5
x = -1.0
# Save initial state as rollback state.
fmu.saveCurrentStateForRollback()
while ( ( t + step_size ) - tstop < EPS_TIME ):
t = fmu.integrate( t + step_size )
x = fmu.getRealValue( 'x' )
self.assertEqual( fmu.getLastStatus(), fmippim.fmiOK )
t = fmu.getTime();
self.assertTrue( math.fabs( t - tstop ) < step_size/2 )
x = fmu.getRealValue( 'x' )
self.assertEqual( fmu.getLastStatus(), fmippim.fmiOK )
# with an eventsearchprecision of 1.0e-6, require the same accuracy for x.
self.assertTrue( math.fabs( x - 0.5 ) < 1e-6 )
# Enforce rollback.
t = 0.0
while ( ( t + step_size ) - tstop < EPS_TIME ):
t = fmu.integrate( t + step_size )
x = fmu.getRealValue( 'x' )
self.assertEqual( fmu.getLastStatus(), fmippim.fmiOK )
t = fmu.getTime();
self.assertTrue( math.fabs( t - tstop ) < step_size/2 )
x = fmu.getRealValue( 'x' )
self.assertEqual( fmu.getLastStatus(), fmippim.fmiOK )
# with an eventsearchprecision of 1.0e-6, require the same accuracy for x.
self.assertTrue( math.fabs( x - 0.5 ) < 1e-6 )
def test_fmi_1_0_load(self): model_name = 'zigzag' fmu = fmippim.RollbackFMU( FMU_URI_PRE + model_name, model_name )