Examples with GeneralProblem aima.core.search.framework.problem.GeneralProblem used on opensource projects

Example 11 with GeneralProblem

use of aima.core.search.framework.problem.GeneralProblem in project aima-java by aimacode.

the class DepthLimitedSearchTest method testFailure.

@Test
public void testFailure() throws Exception {
    Problem<NQueensBoard, QueenAction> problem = new GeneralProblem<>(new NQueensBoard(3), NQueensFunctions::getIFActions, NQueensFunctions::getResult, NQueensFunctions::testGoal);
    DepthLimitedSearch<NQueensBoard, QueenAction> search = new DepthLimitedSearch<>(5);
    SearchAgent<NQueensBoard, QueenAction> agent = new SearchAgent<>(problem, search);
    List<Action> actions = agent.getActions();
    Assert.assertEquals(true, SearchUtils.isFailure(actions));
}

Example 12 with GeneralProblem

use of aima.core.search.framework.problem.GeneralProblem in project aima-java by aimacode.

the class DepthLimitedSearchTest method testSuccessfulDepthLimitedSearch.

@Test
public void testSuccessfulDepthLimitedSearch() throws Exception {
    Problem<NQueensBoard, QueenAction> problem = new GeneralProblem<>(new NQueensBoard(8), NQueensFunctions::getIFActions, NQueensFunctions::getResult, NQueensFunctions::testGoal);
    SearchForActions<NQueensBoard, QueenAction> search = new DepthLimitedSearch<>(8);
    List<QueenAction> actions = search.findActions(problem);
    assertCorrectPlacement(actions);
    Assert.assertEquals("113", search.getMetrics().get("nodesExpanded"));
}

Example 13 with GeneralProblem

use of aima.core.search.framework.problem.GeneralProblem in project aima-java by aimacode.

the class LRTAStarAgentTest method testNoPath.

@Test
public void testNoPath() {
    MapEnvironment me = new MapEnvironment(aMap);
    OnlineSearchProblem<String, MoveToAction> problem = new GeneralProblem<>(null, MapFunctions.createActionsFunction(aMap), null, GoalTest.isEqual("G"), MapFunctions.createDistanceStepCostFunction(aMap));
    LRTAStarAgent<String, MoveToAction> agent = new LRTAStarAgent<>(problem, MapFunctions.createPerceptToStateFunction(), h);
    me.addAgent(agent, "A");
    me.addEnvironmentView(new TestEnvironmentView());
    // Note: Will search forever if no path is possible,
    // Therefore restrict the number of steps to something
    // reasonablbe, against which to test.
    me.step(14);
    Assert.assertEquals("Action[name==moveTo, location==B]->Action[name==moveTo, location==A]->Action[name==moveTo, location==B]->Action[name==moveTo, location==C]->Action[name==moveTo, location==B]->Action[name==moveTo, location==C]->Action[name==moveTo, location==D]->Action[name==moveTo, location==C]->Action[name==moveTo, location==D]->Action[name==moveTo, location==E]->Action[name==moveTo, location==D]->Action[name==moveTo, location==E]->Action[name==moveTo, location==F]->Action[name==moveTo, location==E]->", envChanges.toString());
}

Example 14 with GeneralProblem

use of aima.core.search.framework.problem.GeneralProblem in project aima-java by aimacode.

the class LRTAStarAgentTest method testAlreadyAtGoal.

@Test
public void testAlreadyAtGoal() {
    MapEnvironment me = new MapEnvironment(aMap);
    OnlineSearchProblem<String, MoveToAction> problem = new GeneralProblem<>(null, MapFunctions.createActionsFunction(aMap), null, GoalTest.isEqual("A"), MapFunctions.createDistanceStepCostFunction(aMap));
    LRTAStarAgent<String, MoveToAction> agent = new LRTAStarAgent<>(problem, MapFunctions.createPerceptToStateFunction(), h);
    me.addAgent(agent, "A");
    me.addEnvironmentView(new TestEnvironmentView());
    me.stepUntilDone();
    Assert.assertEquals("Action[name==NoOp]->", envChanges.toString());
}

Example 15 with GeneralProblem

use of aima.core.search.framework.problem.GeneralProblem in project aima-java by aimacode.

the class OnlineDFSAgentTest method testNoPath.

@Test
public void testNoPath() {
    aMap = new ExtendableMap();
    aMap.addBidirectionalLink("A", "B", 1.0);
    MapEnvironment me = new MapEnvironment(aMap);
    OnlineSearchProblem<String, MoveToAction> problem = new GeneralProblem<>(null, MapFunctions.createActionsFunction(aMap), null, GoalTest.isEqual("X"), MapFunctions.createDistanceStepCostFunction(aMap));
    OnlineDFSAgent<String, MoveToAction> agent = new OnlineDFSAgent<>(problem, MapFunctions.createPerceptToStateFunction());
    me.addAgent(agent, "A");
    me.addEnvironmentView(new TestEnvironmentView());
    me.stepUntilDone();
    Assert.assertEquals("Action[name==moveTo, location==B]->Action[name==moveTo, location==A]->Action[name==moveTo, location==B]->Action[name==moveTo, location==A]->Action[name==NoOp]->", envChanges.toString());
}