Fix SpiralMatrixIITest: corrected class name and 2D array assertions

Author: itsKomal1508

src/test/java/com/thealgorithms/matrix/SpiralMatrixIITest.java

@@ -1,26 +1,53 @@
 package com.thealgorithms.matrix;
+
 import static org.junit.jupiter.api.Assertions.assertArrayEquals;
 import org.junit.jupiter.api.Test;
 
 class SpiralMatrixIITest {
 
-    SpiralMatrix spiral = new SpiralMatrix();
+    // Instantiate the class to test
+    SpiralMatrixII spiral = new SpiralMatrixII();
 
     @Test
     void testNEquals3() {
-        int[][] expected = {{1, 2, 3}, {8, 9, 4}, {7, 6, 5}};
-        assertArrayEquals(expected, spiral.generateMatrix(3));
+        int[][] expected = {
+            {1, 2, 3},
+            {8, 9, 4},
+            {7, 6, 5}
+        };
+        int[][] actual = spiral.generateMatrix(3);
+
+        // Compare each row
+        for (int i = 0; i < expected.length; i++) {
+            assertArrayEquals(expected[i], actual[i], "Row " + i + " is incorrect for n=3");
+        }
     }
 
     @Test
     void testNEquals4() {
-        int[][] expected = {{1, 2, 3, 4}, {12, 13, 14, 5}, {11, 16, 15, 6}, {10, 9, 8, 7}};
-        assertArrayEquals(expected, spiral.generateMatrix(4));
+        int[][] expected = {
+            {1, 2, 3, 4},
+            {12, 13, 14, 5},
+            {11, 16, 15, 6},
+            {10, 9, 8, 7}
+        };
+        int[][] actual = spiral.generateMatrix(4);
+
+        for (int i = 0; i < expected.length; i++) {
+            assertArrayEquals(expected[i], actual[i], "Row " + i + " is incorrect for n=4");
+        }
     }
 
     @Test
     void testNEquals2() {
-        int[][] expected = {{1, 2}, {4, 3}};
-        assertArrayEquals(expected, spiral.generateMatrix(2));
+        int[][] expected = {
+            {1, 2},
+            {4, 3}
+        };
+        int[][] actual = spiral.generateMatrix(2);
+
+        for (int i = 0; i < expected.length; i++) {
+            assertArrayEquals(expected[i], actual[i], "Row " + i + " is incorrect for n=2");
+        }
     }
 }