123 lines
3.8 KiB
C++
123 lines
3.8 KiB
C++
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/*
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* SPDX-FileName: testMonostable.cxx
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* SPDX-FileComment: Unit tests for monostable autopilot element
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* SPDX-FileCopyrightText: Copyright (C) 2023 Huntley Palmer
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "testMonostable.hxx"
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#include <strstream>
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#include "test_suite/FGTestApi/testGlobals.hxx"
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#include <Autopilot/autopilot.hxx>
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#include <Autopilot/digitalfilter.hxx>
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#include <Main/fg_props.hxx>
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#include <Main/globals.hxx>
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#include <simgear/math/sg_random.hxx>
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#include <simgear/props/props_io.hxx>
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// Set up function for each test.
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void MonostableTests::setUp()
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{
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FGTestApi::setUp::initTestGlobals("ap-monostable");
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}
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// Clean up after each test.
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void MonostableTests::tearDown()
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{
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FGTestApi::tearDown::shutdownTestGlobals();
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}
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SGPropertyNode_ptr MonostableTests::configFromString(const std::string& s)
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{
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SGPropertyNode_ptr config = new SGPropertyNode;
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std::istringstream iss(s);
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readProperties(iss, config);
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return config;
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}
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void MonostableTests::testMonostable()
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{
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sg_srandom(999);
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//
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// Simple monostable from wiki:
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// monostable stable state is false, true when Set, until timeout
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// ( S == False, test/S == 0 ) : O/P = 0
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// ( S == True , test/S == 1 ) : O/P = 1
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// ( S == False, test/S == 0 ) : Timer running, O/P = 1
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// ( S == False, test/S == 0 ) : Timed out , O/P = 0
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//
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//
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auto config = configFromString(R"(<?xml version="1.0" encoding="UTF-8"?>
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<PropertyList>
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<flipflop>
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<type>monostable</type>
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<S>
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<property>/test/S</property>
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</S>
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<time>
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<value>0.50</value>
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</time>
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<output>/test/Q</output>
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</flipflop>
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</PropertyList>
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)");
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auto ap = new FGXMLAutopilot::Autopilot(globals->get_props(), config);
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globals->get_subsystem_mgr()->add("ap", ap);
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ap->bind();
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ap->init();
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// Initially test/S is 0 O/P s.b stable state == 0
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fgSetBool("/test/S", false);
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ap->update(0.01);
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CPPUNIT_ASSERT_EQUAL(false, fgGetBool("/test/Q"));
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// steady input test/S = 0 s.b. no change
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ap->update(0.24);
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CPPUNIT_ASSERT_EQUAL(false, fgGetBool("/test/Q"));
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// steady test/S = 0 s.b. no change during timer
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ap->update(0.25);
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CPPUNIT_ASSERT_EQUAL(false, fgGetBool("/test/Q"));
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// steady test/S = 0 s.b. no change after timeout
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ap->update(0.25);
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CPPUNIT_ASSERT_EQUAL(false, fgGetBool("/test/Q"));
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// Set S input true == 1 O/P should immediately = 1, true
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fgSetBool("/test/S", true);
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ap->update(0.01);
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CPPUNIT_ASSERT_EQUAL(true, fgGetBool("/test/Q"));
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// steady test/S = 1 s.b. no change during timer
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ap->update(0.24);
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CPPUNIT_ASSERT_EQUAL(true, fgGetBool("/test/Q"));
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// steady test/S = 1 s.b. no change after timeout
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ap->update(0.25);
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CPPUNIT_ASSERT_EQUAL(true, fgGetBool("/test/Q"));
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// Reset Input test/S = 0 s.b. no change
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fgSetBool("/test/S", false);
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ap->update(0.01);
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CPPUNIT_ASSERT_EQUAL(true, fgGetBool("/test/Q"));
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// steady test/S = 0 s.b. no change during timer
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ap->update(0.24);
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CPPUNIT_ASSERT_EQUAL(true, fgGetBool("/test/Q"));
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// steady test/S = 0 O/P resets = 0 after timeout
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ap->update(0.25);
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CPPUNIT_ASSERT_EQUAL(false, fgGetBool("/test/Q"));
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}
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