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[BAEL-19135] - Move search articles to a new module

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catalin-burcea
2019-11-19 17:58:32 +02:00
parent dd4aae6139
commit 5e7d875d0f
31 changed files with 744 additions and 327 deletions
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43
algorithms-miscellaneous-1/src/test/java/com/baeldung/algorithms/binarysearch/BinarySearchUnitTest.java
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package com.baeldung.algorithms.binarysearch;
import java.util.Arrays;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
import com.baeldung.algorithms.binarysearch.BinarySearch;
public class BinarySearchUnitTest {
int[] sortedArray = { 0, 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 9 };
int key = 6;
int expectedIndexForSearchKey = 7;
int low = 0;
int high = sortedArray.length - 1;
List<Integer> sortedList = Arrays.asList(0, 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 9);
@Test
public void givenASortedArrayOfIntegers_whenBinarySearchRunIterativelyForANumber_thenGetIndexOfTheNumber() {
BinarySearch binSearch = new BinarySearch();
Assert.assertEquals(expectedIndexForSearchKey, binSearch.runBinarySearchIteratively(sortedArray, key, low, high));
}
@Test
public void givenASortedArrayOfIntegers_whenBinarySearchRunRecursivelyForANumber_thenGetIndexOfTheNumber() {
BinarySearch binSearch = new BinarySearch();
Assert.assertEquals(expectedIndexForSearchKey, binSearch.runBinarySearchRecursively(sortedArray, key, low, high));
}
@Test
public void givenASortedArrayOfIntegers_whenBinarySearchRunUsingArraysClassStaticMethodForANumber_thenGetIndexOfTheNumber() {
BinarySearch binSearch = new BinarySearch();
Assert.assertEquals(expectedIndexForSearchKey, binSearch.runBinarySearchUsingJavaArrays(sortedArray, key));
}
@Test
public void givenASortedListOfIntegers_whenBinarySearchRunUsingCollectionsClassStaticMethodForANumber_thenGetIndexOfTheNumber() {
BinarySearch binSearch = new BinarySearch();
Assert.assertEquals(expectedIndexForSearchKey, binSearch.runBinarySearchUsingJavaCollections(sortedList, key));
}
}

92
algorithms-miscellaneous-1/src/test/java/com/baeldung/algorithms/mcts/MCTSUnitTest.java
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package com.baeldung.algorithms.mcts;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.util.List;
import org.junit.Before;
import org.junit.Test;
import com.baeldung.algorithms.mcts.montecarlo.MonteCarloTreeSearch;
import com.baeldung.algorithms.mcts.montecarlo.State;
import com.baeldung.algorithms.mcts.montecarlo.UCT;
import com.baeldung.algorithms.mcts.tictactoe.Board;
import com.baeldung.algorithms.mcts.tictactoe.Position;
import com.baeldung.algorithms.mcts.tree.Tree;
public class MCTSUnitTest {
private Tree gameTree;
private MonteCarloTreeSearch mcts;
@Before
public void initGameTree() {
gameTree = new Tree();
mcts = new MonteCarloTreeSearch();
}
@Test
public void givenStats_whenGetUCTForNode_thenUCTMatchesWithManualData() {
double uctValue = 15.79;
assertEquals(UCT.uctValue(600, 300, 20), uctValue, 0.01);
}
@Test
public void giveninitBoardState_whenGetAllPossibleStates_thenNonEmptyList() {
State initState = gameTree.getRoot().getState();
List<State> possibleStates = initState.getAllPossibleStates();
assertTrue(possibleStates.size() > 0);
}
@Test
public void givenEmptyBoard_whenPerformMove_thenLessAvailablePossitions() {
Board board = new Board();
int initAvailablePositions = board.getEmptyPositions().size();
board.performMove(Board.P1, new Position(1, 1));
int availablePositions = board.getEmptyPositions().size();
assertTrue(initAvailablePositions > availablePositions);
}
@Test
public void givenEmptyBoard_whenSimulateInterAIPlay_thenGameDraw() {
Board board = new Board();
int player = Board.P1;
int totalMoves = Board.DEFAULT_BOARD_SIZE * Board.DEFAULT_BOARD_SIZE;
for (int i = 0; i < totalMoves; i++) {
board = mcts.findNextMove(board, player);
if (board.checkStatus() != -1) {
break;
}
player = 3 - player;
}
int winStatus = board.checkStatus();
assertEquals(winStatus, Board.DRAW);
}
@Test
public void givenEmptyBoard_whenLevel1VsLevel3_thenLevel3WinsOrDraw() {
Board board = new Board();
MonteCarloTreeSearch mcts1 = new MonteCarloTreeSearch();
mcts1.setLevel(1);
MonteCarloTreeSearch mcts3 = new MonteCarloTreeSearch();
mcts3.setLevel(3);
int player = Board.P1;
int totalMoves = Board.DEFAULT_BOARD_SIZE * Board.DEFAULT_BOARD_SIZE;
for (int i = 0; i < totalMoves; i++) {
if (player == Board.P1)
board = mcts3.findNextMove(board, player);
else
board = mcts1.findNextMove(board, player);
if (board.checkStatus() != -1) {
break;
}
player = 3 - player;
}
int winStatus = board.checkStatus();
assertTrue(winStatus == Board.DRAW || winStatus == Board.P1);
}
}