Gwendal in main : add test on futur constraints and enhance input symbol method (#1)

Co-authored-by: ROGER <gwendal.roger@etu.univ-lyon1.fr>
Reviewed-on: #1

app/src/test/java/sudoku/AppTest.java

@@ -1,17 +1,35 @@
-/*
- * This Java source file was generated by the Gradle 'init' task.
- */
 package sudoku;
 
 import org.junit.jupiter.api.Test;
 
+import java.io.ByteArrayInputStream;
+import java.util.ArrayList;
+import java.util.Arrays;
+
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
 public class AppTest {
     @Test
     public void testExample() {
-        System.out.println("DOING TEST");
-        assertEquals(2 + 2, 4);
-        System.out.println("DONE TEST");   
+        // Simulate user input
+        String simulatedInput = "1\n1\n2\n3\n4\n5\n6\n7\n8\n9\n";
+        System.setIn(new ByteArrayInputStream(simulatedInput.getBytes()));
+
+        // Create a new Sudoku
+        Sudoku sudoku = new Sudoku(9);
+        sudoku.getGrille().askSetSymbolesPossibles();
+
+        // Verify the symbols
+        ArrayList<Symbole> expectedSymbols = new ArrayList<>(Arrays.asList(
+                Symbole.of(1),
+                Symbole.of(2),
+                Symbole.of(3),
+                Symbole.of(4),
+                Symbole.of(5),
+                Symbole.of(6),
+                Symbole.of(7),
+                Symbole.of(8),
+                Symbole.of(9)));
+        assertEquals(expectedSymbols, sudoku.getGrille().getSymbolesPossibles());
     }
 }