Source code for test_simpleVoltEstimator


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import os

import matplotlib.pyplot as plt
import numpy
from Basilisk.architecture import messaging
from Basilisk.simulation import simpleVoltEstimator
from Basilisk.utilities import SimulationBaseClass
from Basilisk.utilities import unitTestSupport


# uncomment this line is this test is to be skipped in the global unit test run, adjust message as needed
# @pytest.mark.skipif(conditionstring)
# uncomment this line if this test has an expected failure, adjust message as needed
# @pytest.mark.xfail(True)

[docs]def test_unitSimpleVoltEstimator(show_plots): """Module Unit Test""" # each test method requires a single assert method to be called [testResults, testMessage] = unitSimpleVoltEstimator(show_plots) assert testResults < 1, testMessage
def unitSimpleVoltEstimator(show_plots): path = os.path.dirname(os.path.abspath(__file__)) testFailCount = 0 # zero unit test result counter testMessages = [] # create empty array to store test log messages # Create a sim module as an empty container unitTaskName = "unitTask" # arbitrary name (don't change) unitProcessName = "TestProcess" # arbitrary name (don't change) # Create a sim module as an empty container unitTestSim = SimulationBaseClass.SimBaseClass() unitTestProc = unitTestSim.CreateNewProcess(unitProcessName) # create the task and specify the integration update time unitTestProc.addTask(unitTestSim.CreateNewTask(unitTaskName, int(1E8))) # Now initialize the modules that we are using sVoltObject = simpleVoltEstimator.SimpleVoltEstimator() unitTestSim.AddModelToTask(unitTaskName, sVoltObject) scPotential = -2000. voltMessageData = messaging.VoltMsgPayload() voltMessageData.voltage = scPotential # Volt output Message voltMsg = messaging.VoltMsg().write(voltMessageData) sVoltObject.voltInMsg.subscribeTo(voltMsg) sVoltObject.ModelTag = "SimpleVoltageEstimation" voltBound = numpy.array([1000.0]) voltSigma = 50.0 pMatrix = [voltSigma] errorBounds = [1000.] sVoltObject.walkBounds = errorBounds sVoltObject.PMatrix = pMatrix # setup logging dataVoltLog = sVoltObject.voltOutMsg.recorder() unitTestSim.AddModelToTask(unitTaskName, dataVoltLog) unitTestSim.InitializeSimulation() unitTestSim.ConfigureStopTime(int(60 * 144.0 * 1E9)) unitTestSim.ExecuteSimulation() # pull simulation data volt = dataVoltLog.voltage countAllow = volt.shape[0] * 0.3 / 100. # make sure there are not too many error counts (voltage difference exceeding voltage bound) voltDiffCount = 0 i = 0 while i < volt.shape[0]: voltDiff = volt[i] - scPotential if abs(voltDiff) > voltBound: voltDiffCount += 1 i += 1 errorCounts = [voltDiffCount] for count in errorCounts: if count > countAllow: testFailCount += 1 testMessages.append("FAILED: Too many error counts - " + str(count)) # now make sure there are enough occasions where voltage difference comes close to voltage bound sigmaThreshold = 0.8 voltDiffCount = 0 i = 0 while i < volt.shape[0]: voltDiff = volt[i] - scPotential if abs(voltDiff) > voltBound*sigmaThreshold: voltDiffCount += 1 i += 1 errorCounts = [voltDiffCount] for count in errorCounts: if count < 1: testFailCount += 1 testMessages.append("FAILED: Too few error counts - " + str(count)) plt.figure(1) plt.clf() plt.figure(1, figsize=(7, 5), dpi=80, facecolor='w', edgecolor='k') plt.plot(dataVoltLog.times() * 1.0E-9, volt[:]) plt.xlabel('Time (s)') plt.ylabel('Voltage (V)') unitTestSupport.writeFigureLaTeX('SimpleVolt', 'Simple Voltage Estimator Voltage Signal', plt, r'height=0.4\textwidth, keepaspectratio', path) if show_plots: plt.show() plt.close('all') # check if BSK_ERROR is returned if pMatrix is wrong size pMatrixBad = [[0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.], [0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0., 0.]] stateBoundsBad = [[0.], [0.], [0.], [0.], [0.], [0.], [0.], [0.], [0.], [0.], [0.], [0.]] sVoltObject.walkBounds = stateBoundsBad sVoltObject.PMatrix = pMatrixBad unitTestSim.InitializeSimulation() unitTestSim.ConfigureStopTime(int(1E8)) unitTestSim.ExecuteSimulation() # print out success message if no error were found if testFailCount == 0: print("PASSED") assert testFailCount < 1, testMessages # each test method requires a single assert method to be called # this check below just makes sure no sub-test failures were found return [testFailCount, ''.join(testMessages)] # This statement below ensures that the unit test scrip can be run as a # stand-along python script if __name__ == "__main__": unitSimpleVoltEstimator(True)