Extending testcases

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

@@ -86,7 +86,7 @@ class SolverTest {
     @Test
     void unsolvableTest() {
         Solver solver = new Solver();
-        
+
         // Simple example
         solver.clear();
         solver.set(0, 0, 1);
@@ -107,6 +107,37 @@ class SolverTest {
         assertFalse(solver.solve());
     }
 
+    @Test
+    void unsolvableTestCase3() {
+        Solver solver = new Solver();
+
+        // More complex example
+        solver.clear();
+        solver.set(0, 0, 1);
+        solver.set(0, 1, 2);
+        solver.set(0, 2, 3);
+        solver.set(1, 0, 4);
+        solver.set(1, 1, 5);
+        solver.set(1, 2, 6);
+        solver.set(2, 3, 7);
+        assertFalse(solver.isSolvable());
+    }
+
+    @Test
+    void solvableTestCase3() {
+        Solver solver = new Solver();
+
+        // More complex example
+        solver.clear();
+        solver.set(0, 0, 1);
+        solver.set(0, 1, 2);
+        solver.set(0, 2, 3);
+        solver.set(1, 0, 4);
+        solver.set(1, 1, 5);
+        solver.set(1, 2, 6);
+        assertTrue(solver.isSolvable());
+    }
+
     @Test
     void setBoardInvalidInputThrowsTest() {
         Solver solver = new Solver();