fix tests

app/src/test/java/sudoku/solver/SolverTest.java

@@ -42,13 +42,13 @@ class SolverTest {
 				ns, 0, 1, ns);
 		assertTrue(test.setImmutableCellsSymbol(immutableCells));
 		List<Integer> correctCells = List.of(
-			1, 2, 3, 0,
-			0, 3, 2, 1,
-			2, 1, 0, 3,
-			3, 0, 1, 2);
-			assertTrue(result.setCellsSymbol(correctCells));
-			assertTrue(result.isSolved());
-			
+				1, 2, 3, 0,
+				0, 3, 2, 1,
+				2, 1, 0, 3,
+				3, 0, 1, 2);
+		assertTrue(result.setCellsSymbol(correctCells));
+		assertTrue(result.isSolved());
+
 		assertNotEquals(mdResult, mdTest);
 		solver.solve(mdTest);
 		assertTrue(mdTest.isSolved());
@@ -101,24 +101,32 @@ class SolverTest {
 		MultiDoku mdResult = SudokuSerializer.deserializeSudoku(SudokuSerializer.serializeSudoku(mdTest));
 		assertFalse(mdTest.isSolved());
 		assertFalse(mdResult.isSolved());
+		assertEquals(mdTest, mdResult);
+		
 		assertTrue(solver.solve(mdTest));
+		
 		assertTrue(mdTest.isSolved());
 		assertFalse(mdResult.isSolved());
+		System.out.println(mdTest);
+		System.out.println(mdResult);
 		assertNotEquals(mdTest, mdResult);
-		solver.solve(mdResult);
+		
+		assertTrue(solver.solve(mdResult));
+		
 		assertEquals(mdTest, mdResult);
 	}
 
 	@Test
 	void solveTest() {
-		initializeSolvers();
-		testSize2(h);
-		testSize3(h);
-		testSize2(m);
-		testSize3(m);
-		testMDSize3(m);
-		testSize2(r);
-		testSize3(r);
-		testMDSize3(r);
+		for (int i = 0; i < 100; i++) {
+			testSize2(h);
+			testSize3(h);
+			testSize2(m);
+			testSize3(m);
+			testMDSize3(m);
+			testSize2(r);
+			testSize3(r);
+			testMDSize3(r);
+		}
 	}
 }