Improve tests

.nycrc

@@ -2,7 +2,7 @@
   "check-coverage": true,
   "lines": 98.19,
   "functions": 94.79,
-  "branches": 95.23,
+  "branches": 95.35,
   "statements": 98.17,
   "include": [
     "src/**/*.ts"

src/file/document/body/section-properties/page-border/page-borders.spec.ts

@@ -24,6 +24,18 @@ describe("PageBorders", () => {
             expect(tree["w:pgBorders"]).to.deep.equal({ _attr: { "w:display": "firstPage" } });
         });
 
+        it("should create page borders with default configuration", () => {
+            const properties = new PageBorders({});
+            const tree = new Formatter().format(properties);
+
+            expect(Object.keys(tree)).to.deep.equal(["w:pgBorders"]);
+            expect(tree).to.deep.equal({
+                "w:pgBorders": {
+                    _attr: {},
+                },
+            });
+        });
+
         it("should create page borders with full configuration", () => {
             const properties = new PageBorders({
                 pageBorders: {

src/file/document/body/section-properties/page-border/page-borders.ts

@@ -72,18 +72,18 @@ export class PageBorders extends IgnoreIfEmptyXmlComponent {
             return;
         }
 
-        let pageBordersAttributes = {};
-
         if (options.pageBorders) {
-            pageBordersAttributes = {
+            this.root.push(
+                new PageBordersAttributes({
                     display: options.pageBorders.display,
                     offsetFrom: options.pageBorders.offsetFrom,
                     zOrder: options.pageBorders.zOrder,
-            };
+                }),
+            );
+        } else {
+            this.root.push(new PageBordersAttributes({}));
         }
 
-        this.root.push(new PageBordersAttributes(pageBordersAttributes));
-
         if (options.pageBorderTop) {
             this.root.push(new PageBorder("w:top", options.pageBorderTop));
         }