feat: added nyc for test coverage reporting. fix: add jsdoc comments

src/models/PagingRequest.ts

@@ -1,8 +1,37 @@
+import { ArgumentValidator } from "./ArgumentValidator";
+
+/**
+ * @class PagingRequest - Paging request model
+ */
 export class PagingRequest {
+  /**
+   * @property {number} pageNumber - The page number of the request.
+   */
   pageNumber: number;
+
+  /**
+   * @property {number} pageSize - The page size of the request.
+   */
   pageSize: number;
 
+  /**
+   * @constructor - Creates a new instance of the PagingRequest class.
+   * @param {number} pageNumber - The page number of the request. Must be greater than 0.
+   * @param {number} pageSize - The page size of the request. Must be greater than 0 and less than 1001.
+   * @returns {PagingRequest} - A new instance of the PagingRequest class.
+   * @throws {Error} - Thrown when the pageNumber is less than 1.
+   * @throws {Error} - Thrown when the pageSize is less than 1.
+   * @throws {Error} - Thrown when the pageSize is greater than 1000.
+   */
   constructor(pageNumber: number, pageSize: number) {
+    if (ArgumentValidator.isValidPageNumber(pageNumber) === false) {
+      throw new Error("pageNumber must be greater than 0.");
+    }
+
+    if (ArgumentValidator.isValidPageSize(pageSize) === false) {
+      throw new Error("pageSize must be greater than 0 and less than 1001.");
+    }
+
     this.pageNumber = pageNumber;
     this.pageSize = pageSize;
   }