ue6
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65
uebung06/test/sudoku/FieldTest.java
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65
uebung06/test/sudoku/FieldTest.java
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package uebung06.test.sudoku;
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import org.junit.Before;
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import org.junit.Test;
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import sudoku.*;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertNull;
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import static org.junit.Assert.assertTrue;
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public class FieldTest {
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private static final int X = 8;
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private static final int Y = 5;
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private static final int NUL = -1;
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private static final Value VAL = Value.EIGHT;
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private static Sudoku sudoku;
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private static Field field;
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@Before
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public void init() {
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sudoku = new Sudoku();
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field = new Field(sudoku, X, Y);
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}
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@Test(expected = IllegalArgumentException.class)
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public void illegalXLowerBoundFieldTest() {
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field = new Field(sudoku, NUL, Y);
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}
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@Test(expected = IllegalArgumentException.class)
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public void illegalXUpperBoundFieldTest() {
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field = new Field(sudoku, Sudoku.SIZE, Y);
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}
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@Test(expected = IllegalArgumentException.class)
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public void illegalYLowerBoundFieldTest() {
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field = new Field(sudoku, X, NUL);
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}
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@Test(expected = IllegalArgumentException.class)
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public void illegalYUpperBoundFieldTest() {
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field = new Field(sudoku, X, Sudoku.SIZE);
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}
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@Test
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public void valueFieldTest() {
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field.setValue(VAL);
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assertEquals(field.getValue(), VAL);
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}
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@Test
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public void clearValueFieldTest() {
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field.setValue(VAL);
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field.clearValue();
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assertNull(field.getValue());
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}
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@Test
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public void isValueEmptyFieldTest() {
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field.setValue(VAL);
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field.clearValue();
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assertTrue(field.isEmpty());
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}
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}
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129
uebung06/test/sudoku/SudokuAppTest.java
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129
uebung06/test/sudoku/SudokuAppTest.java
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package uebung06.test.sudoku;
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import org.junit.Before;
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import org.junit.Test;
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import sudoku.*;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.stream.IntStream;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertTrue;
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public class SudokuAppTest {
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private static final int MAX = 81;
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private static final int MIN = 0;
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private static final int SUDOKU_SIZE = 9;
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private static Sudoku board;
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private static int[] init;
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private static int[] wrongSol;
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@Before
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public void init() {
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board = new Sudoku();
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init = IntStream.of(4, 5, 0, 0, 0, 0, 2, 0, 0,
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6, 0, 0, 0, 2, 4, 8, 0, 0,
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8, 0, 0, 0, 6, 1, 3, 0, 0,
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0, 9, 0, 4, 0, 0, 0, 5, 0,
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0, 1, 0, 2, 0, 8, 0, 7, 0,
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0, 3, 0, 0, 0, 9, 0, 8, 0,
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0, 0, 7, 1, 4, 0, 0, 0, 8,
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0, 0, 2, 7, 9, 0, 0, 0, 6,
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0, 0, 5, 0, 0, 0, 0, 2, 1).toArray();
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wrongSol = IntStream.of(4, 5, 1, 8, 7, 3, 2, 6, 9,
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6, 7, 3, 9, 2, 4, 8, 1, 5,
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8, 2, 9, 5, 6, 1, 3, 4, 7,
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2, 9, 8, 4, 1, 7, 6, 5, 3,
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5, 1, 6, 2, 3, 8, 9, 7, 4,
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7, 3, 4, 6, 5, 9, 1, 8, 2,
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3, 6, 7, 1, 4, 2, 5, 9, 8,
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1, 8, 2, 7, 9, 5, 4, 3, 6,
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9, 5, 4, 3, 8, 6, 7, 2, 1).toArray();
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}
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//Testing first If-condition in Sudoku.init
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@Test(expected = IllegalArgumentException.class)
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public void illegalLowerBoundInitSudokuAppTest() {
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board.initialize(IntStream.range(MIN, MIN+1).toArray());
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}
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//Testing first If-condition in Sudoku.init
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@Test(expected = IllegalArgumentException.class)
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public void illegalUpperBoundInitSudokuAppTest() {
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board.initialize(IntStream.range(MIN, MAX+1).toArray());
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}
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//Testing ArrayIndex of Value
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@Test(expected = ArrayIndexOutOfBoundsException.class)
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public void illegalArrayIndexOutOfBoundInitSudokuAppTest() {
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board.initialize(IntStream.range(MIN, MAX).toArray());
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}
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//Testing Sudoku.solve()
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@Test
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public void correctSolutionSudokuAppTest() {
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board.initialize(init);
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board.solve();
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assertTrue(verifySudokuSol());
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}
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//Just testing verifySudokuSol-Method
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@Test
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public void wrongSolutionSudokuAppTest() {
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try {
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board.initialize(wrongSol);
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} catch (final IllegalArgumentException e) {
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//do nothing, just handling throwing exceptions from Sudoku-class
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}
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assertFalse(verifySudokuSol());
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}
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public Boolean verifySudokuSol() {
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HashSet<Value> rows = new HashSet<>();
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HashSet<Value> cols = new HashSet<>();
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HashMap<Integer, HashSet<Value>> blocks = new HashMap<>();
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IntStream.range(0, SUDOKU_SIZE)
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.forEach(block -> blocks.put(block, new HashSet<>())); //init Hashsets for every block
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for (int y = 0; y < SUDOKU_SIZE; y++) {
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for (int x = 0; x < SUDOKU_SIZE; x++) {
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//check column
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Value val = board.field(x, y).getValue();
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if (!cols.add(val))
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return false;
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if (cols.size() == SUDOKU_SIZE)
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cols.clear();
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//check row
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val = board.field(y, x).getValue();
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if (!rows.add(val))
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return false;
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if (rows.size() == SUDOKU_SIZE)
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rows.clear();
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//check 3x3 block
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val = board.field(x, y).getValue();
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if (!blocks.get(getBlockIndex(x, y)).add(val))
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return false;
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}
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}
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return true;
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}
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public int getBlockIndex(int x, int y) {
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return getColIndex(x) + getRowIndex(y);
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}
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public int getColIndex(int x) {
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return x / 3;
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}
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public int getRowIndex(int y) {
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return (y/3)*3;
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}
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}
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