net.mograsim.logic.model.am2900/test/net/mograsim/logic/model/am2900/TestEnvironmentHelper.java

   1 package net.mograsim.logic.model.am2900;
   2
   3 import static org.junit.jupiter.api.Assertions.fail;
   4
   5 import java.lang.reflect.Field;
   6 import java.util.HashMap;
   7 import java.util.HashSet;
   8 import java.util.LinkedList;
   9 import java.util.Objects;
  10 import java.util.Queue;
  11 import java.util.Set;
  12 import java.util.TreeSet;
  13
  14 import net.mograsim.logic.core.components.BitDisplay;
  15 import net.mograsim.logic.core.components.ManualSwitch;
  16 import net.mograsim.logic.core.timeline.Timeline;
  17 import net.mograsim.logic.model.am2900.TestableCircuit.Result;
  18 import net.mograsim.logic.model.model.ViewModel;
  19 import net.mograsim.logic.model.model.ViewModelModifiable;
  20 import net.mograsim.logic.model.model.components.GUIComponent;
  21 import net.mograsim.logic.model.model.components.atomic.GUIBitDisplay;
  22 import net.mograsim.logic.model.model.components.atomic.GUIManualSwitch;
  23 import net.mograsim.logic.model.model.components.submodels.SubmodelComponent;
  24 import net.mograsim.logic.model.model.wires.GUIWire;
  25 import net.mograsim.logic.model.model.wires.Pin;
  26 import net.mograsim.logic.model.modeladapter.LogicModelParameters;
  27 import net.mograsim.logic.model.modeladapter.ViewLogicModelAdapter;
  28 import net.mograsim.logic.model.serializing.IndirectGUIComponentCreator;
  29 import net.mograsim.logic.model.util.ModellingTool;
  30
  31 public class TestEnvironmentHelper
  32 {
  33         private final TestableCircuit testEnvInstance;
  34         private final Class<?> testEnvClass;
  35         private final String modelId;
  36         private Field componentField;
  37         private Field timelineField;
  38
  39         private GUIComponent component;
  40         private Timeline timeline;
  41         private ViewModelModifiable viewModel;
  42         private ModellingTool modellingTool;
  43         private HashMap<String, GUIManualSwitch> idSwitchMap = new HashMap<>();
  44         private HashMap<String, GUIBitDisplay> idDisplayMap = new HashMap<>();
  45
  46         private DebugState debug = DebugState.NO_DEBUG;
  47         private Set<String> wireDebugChangeSet;
  48         private boolean debugWires = false;
  49         public int debugEventThreshold = 10_000;
  50         public int debugEventCount = 500;
  51         private int eventCounter;
  52
  53         public TestEnvironmentHelper(TestableCircuit testEnv, String modelId)
  54         {
  55                 this.testEnvInstance = testEnv;
  56                 this.modelId = modelId;
  57                 this.testEnvClass = testEnvInstance.getClass();
  58                 for (Field f : testEnvClass.getDeclaredFields())
  59                 {
  60                         if (GUIComponent.class.isAssignableFrom(f.getType()))
  61                         {
  62                                 componentField = f;
  63                                 componentField.setAccessible(true);
  64                         } else if (Timeline.class.isAssignableFrom(f.getType()))
  65                         {
  66                                 timelineField = f;
  67                                 timelineField.setAccessible(true);
  68                         }
  69                 }
  70                 if (componentField == null || timelineField == null)
  71                         throw new IllegalStateException("No component or timeline field found!");
  72         }
  73
  74         public void setup(DebugState debug)
  75         {
  76                 this.debug = debug;
  77                 // Create view model
  78                 viewModel = new ViewModelModifiable();
  79                 modellingTool = ModellingTool.createFor(viewModel);
  80                 component = IndirectGUIComponentCreator.createComponent(viewModel, modelId);
  81                 setField(componentField, component);
  82
  83                 component.getPins().values().forEach(this::extendModelPin);
  84
  85                 // Create logic model
  86                 LogicModelParameters params = new LogicModelParameters();
  87                 params.gateProcessTime = 50;
  88                 params.wireTravelTime = 10;
  89                 timeline = ViewLogicModelAdapter.convert(viewModel, params);
  90                 setField(timelineField, timeline);
  91
  92                 // Bind switches/displays to this test class
  93                 component.getPins().values().forEach(this::bindModelPin);
  94
  95                 if (debug == DebugState.DEBUG_AT_PERFORMANCE_COST)
  96                 {
  97                         setupDebugging();
  98                 }
  99                 timeline.addEventAddedListener(te -> eventCounter++);
 100         }
 101
 102         private void extendModelPin(Pin p)
 103         {
 104                 String javaIdentId = idToJavaIdentifier(p.name);
 105                 try
 106                 {
 107                         Field f = testEnvClass.getDeclaredField(javaIdentId);
 108                         Class<?> type = f.getType();
 109                         if (ManualSwitch.class.isAssignableFrom(type))
 110                         {
 111                                 GUIManualSwitch gms = new GUIManualSwitch(viewModel, p.logicWidth);
 112                                 modellingTool.connect(p, gms.getOutputPin());
 113                                 idSwitchMap.put(p.name, gms);
 114                         } else if (BitDisplay.class.isAssignableFrom(type))
 115                         {
 116                                 GUIBitDisplay gbd = new GUIBitDisplay(viewModel, p.logicWidth);
 117                                 modellingTool.connect(p, gbd.getInputPin());
 118                                 idDisplayMap.put(p.name, gbd);
 119                         } else
 120                         {
 121                                 fail("unkown field type " + type);
 122                         }
 123                 }
 124                 catch (NoSuchFieldException | SecurityException e)
 125                 {
 126                         fail(e);
 127                 }
 128         }
 129
 130         private void bindModelPin(Pin p)
 131         {
 132                 String javaIdentId = idToJavaIdentifier(p.name);
 133                 if (idDisplayMap.containsKey(p.name))
 134                         setField(javaIdentId, idDisplayMap.get(p.name).getBitDisplay());
 135                 if (idSwitchMap.containsKey(p.name))
 136                         setField(javaIdentId, idSwitchMap.get(p.name).getManualSwitch());
 137         }
 138
 139         private void setupDebugging()
 140         {
 141                 // Debug code
 142                 HashSet<GUIWire> wiresIncludingSubmodels = new HashSet<>();
 143                 Queue<ViewModel> modelsToIterate = new LinkedList<>();
 144                 modelsToIterate.add(viewModel);
 145                 while (modelsToIterate.size() > 0)
 146                 {
 147                         ViewModel model = modelsToIterate.poll();
 148                         wiresIncludingSubmodels.addAll(model.getWiresByName().values());
 149                         for (GUIComponent comp : model.getComponentsByName().values())
 150                                 if (comp instanceof SubmodelComponent)
 151                                         modelsToIterate.offer(((SubmodelComponent) comp).submodel);
 152                 }
 153                 System.out.println(wiresIncludingSubmodels.size());
 154                 viewModel.setRedrawHandler(() -> wiresIncludingSubmodels.forEach(w ->
 155                 {
 156                         if (debugWires)
 157                         {
 158                                 wireDebugChangeSet.add(w.toString());
 159                         }
 160                 }));
 161         }
 162
 163         public Result run()
 164         {
 165                 // Normal execution until completion or eventLimit
 166                 int eventLimit = debugEventThreshold;
 167                 eventCounter = 0;
 168                 debugWires = false;
 169                 while (eventCounter < eventLimit)
 170                 {
 171                         timeline.executeNext();
 172                         if (!timeline.hasNext())
 173                                 return Result.SUCCESS;
 174                 }
 175
 176                 // Start debugging if event limit is reached (if debug is active)
 177                 if (debug == DebugState.DEBUG_AT_PERFORMANCE_COST)
 178                         return debugThisRun();
 179
 180                 return Result.OUT_OF_TIME;
 181         }
 182
 183         private Result debugThisRun()
 184         {
 185                 int eventLimit = debugEventThreshold;
 186                 debugWires = true;
 187                 wireDebugChangeSet = new TreeSet<>();
 188                 Set<String> oldChangeSet;
 189                 // observe wire changes to detect, if we are really stuck in an endless loop
 190                 do
 191                 {
 192                         eventLimit += debugEventCount;
 193                         oldChangeSet = wireDebugChangeSet;
 194                         wireDebugChangeSet = new TreeSet<>();
 195                         while (eventCounter < eventLimit)
 196                         {
 197                                 timeline.executeNext();
 198                                 if (!timeline.hasNext())
 199                                 {
 200                                         // no endless loop, but more events needed than expected
 201                                         System.out.println("run() took longer than expected: " + eventCounter);
 202                                         return Result.SUCCESS;
 203                                 }
 204                         }
 205                 } while (!oldChangeSet.equals(wireDebugChangeSet));
 206                 // if stuck, abort execution and print wires
 207                 System.err.print("Problematic Wire updates:");
 208                 wireDebugChangeSet.forEach(System.out::println);
 209                 System.err.println("run() failed: " + eventCounter);
 210                 return Result.OUT_OF_TIME;
 211         }
 212
 213         private static String idToJavaIdentifier(String s)
 214         {
 215                 StringBuilder sb = new StringBuilder(s.length());
 216                 char c = s.charAt(0);
 217                 sb.append(Character.isJavaIdentifierStart(c) ? c : '_');
 218                 for (int i = 1; i < s.length(); i++)
 219                         sb.append(Character.isJavaIdentifierPart(c = s.charAt(i)) ? c : '_');
 220                 return sb.toString();
 221         }
 222
 223         private <S> void setField(Field f, S value)
 224         {
 225                 try
 226                 {
 227                         f.set(testEnvInstance, Objects.requireNonNull(value));
 228                 }
 229                 catch (Exception e)
 230                 {
 231                         fail(e);
 232                 }
 233         }
 234
 235         private <S> void setField(String name, S value)
 236         {
 237                 try
 238                 {
 239                         Field f = testEnvClass.getDeclaredField(name);
 240                         f.setAccessible(true);
 241                         f.set(testEnvInstance, Objects.requireNonNull(value));
 242                 }
 243                 catch (Exception e)
 244                 {
 245                         fail(e);
 246                 }
 247         }
 248
 249         public enum DebugState
 250         {
 251                 NO_DEBUG, DEBUG_AT_PERFORMANCE_COST;
 252         }
 253 }