Add footnote test

src/file/footnotes/footnote/footnote.spec.ts

@@ -0,0 +1,26 @@
+import { expect } from "chai";
+import { Formatter } from "../../../export/formatter";
+import { Footnote, FootnoteType } from "./footnote";
+
+describe("Footnote", () => {
+
+    describe("#constructor", () => {
+        it("should create a footnote with a footnote type", () => {
+            const footnote = new Footnote(1, FootnoteType.SEPERATOR);
+            const tree = new Formatter().format(footnote);
+
+            expect(Object.keys(tree)).to.deep.equal(["w:footnote"]);
+            expect(tree["w:footnote"]).to.be.an.instanceof(Array);
+            expect(tree["w:footnote"][0]).to.deep.equal({ _attr: { "w:type": "separator", "w:id": 1 } });
+        });
+
+        it("should create a footnote without a footnote type", () => {
+            const footnote = new Footnote(1);
+            const tree = new Formatter().format(footnote);
+
+            expect(Object.keys(tree)).to.deep.equal(["w:footnote"]);
+            expect(tree["w:footnote"]).to.be.an.instanceof(Array);
+            expect(tree["w:footnote"][0]).to.deep.equal({ _attr: { "w:id": 1 } });
+        });
+    });
+});