checkstyle: fix import ordering, and formatting

Author: Alex Klymenko

src/test/java/com/thealgorithms/sorts/MergeSortNoExtraSpaceTest.java

@@ -1,21 +1,21 @@
 package com.thealgorithms.sorts;
 
-import org.junit.jupiter.params.ParameterizedTest;
-import org.junit.jupiter.params.provider.MethodSource;
+import static org.junit.jupiter.api.Assertions.assertArrayEquals;
 
 import java.util.stream.Stream;
-
-import static org.junit.jupiter.api.Assertions.assertArrayEquals;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.MethodSource;
 
 public class MergeSortNoExtraSpaceTest {
     record TestCase(int[] inputArray, int[] expectedArray) {
     }
 
     static Stream<TestCase> provideTestCases() {
-        return Stream.of(new TestCase(new int[] {}, new int[] {}), new TestCase(new int[] {1}, new int[] {1}), new TestCase(new int[] {1, 2, 3, 4, 5}, new int[] {1, 2, 3, 4, 5}), new TestCase(new int[] {5, 4, 3, 2, 1}, new int[] {1, 2, 3, 4, 5}), new TestCase(new int[] {3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5}, new int[] {1, 1, 2, 3, 3, 4, 5, 5, 5, 6, 9}),
-            new TestCase(new int[] {4, 2, 4, 3, 2, 1, 5}, new int[] {1, 2, 2, 3, 4, 4, 5}), new TestCase(new int[] {0, 0, 0, 0}, new int[] {0, 0, 0, 0}), new TestCase(new int[] {1000, 500, 100, 50, 10, 5, 1}, new int[] {1, 5, 10, 50, 100, 500, 1000}), new TestCase(new int[] {1, 2, 3, 1, 2, 3, 1, 2, 3}, new int[] {1, 1, 1, 2, 2, 2, 3, 3, 3}),
-            new TestCase(new int[] {10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0}, new int[] {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}), new TestCase(new int[] {}, new int[] {}), new TestCase(new int[] {1}, new int[] {1}), new TestCase(new int[] {2, 1}, new int[] {1, 2}), new TestCase(new int[] {1, 3, 2}, new int[] {1, 2, 3})
-        );
+        return Stream.of(new TestCase(new int[] {}, new int[] {}), new TestCase(new int[] {1}, new int[] {1}), new TestCase(new int[] {1, 2, 3, 4, 5}, new int[] {1, 2, 3, 4, 5}), new TestCase(new int[] {5, 4, 3, 2, 1}, new int[] {1, 2, 3, 4, 5}),
+            new TestCase(new int[] {3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5}, new int[] {1, 1, 2, 3, 3, 4, 5, 5, 5, 6, 9}), new TestCase(new int[] {4, 2, 4, 3, 2, 1, 5}, new int[] {1, 2, 2, 3, 4, 4, 5}), new TestCase(new int[] {0, 0, 0, 0}, new int[] {0, 0, 0, 0}),
+            new TestCase(new int[] {1000, 500, 100, 50, 10, 5, 1}, new int[] {1, 5, 10, 50, 100, 500, 1000}), new TestCase(new int[] {1, 2, 3, 1, 2, 3, 1, 2, 3}, new int[] {1, 1, 1, 2, 2, 2, 3, 3, 3}),
+            new TestCase(new int[] {10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0}, new int[] {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}), new TestCase(new int[] {}, new int[] {}), new TestCase(new int[] {1}, new int[] {1}), new TestCase(new int[] {2, 1}, new int[] {1, 2}),
+            new TestCase(new int[] {1, 3, 2}, new int[] {1, 2, 3}));
     }
 
     @ParameterizedTest