Added tests, renamed pagenumber to page-number

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

@@ -0,0 +1,17 @@
+import { expect } from "chai";
+
+import { Formatter } from "../../../../../export/formatter";
+import { TitlePage } from "./title-page";
+
+describe("PageSize", () => {
+    describe("#constructor()", () => {
+        it("should create title page property for different first page header", () => {
+            const properties = new TitlePage();
+            const tree = new Formatter().format(properties);
+
+            expect(Object.keys(tree)).to.deep.equal(["w:titlePg"]);
+            expect(tree["w:titlePg"]).to.be.an.instanceof(Array);
+            expect(tree["w:titlePg"][0]).to.deep.equal({ _attr: { "w:val": "1" } });
+        });
+    });
+});