Add footer tests and improve table documentation

docs/usage/tables.md

@@ -2,15 +2,15 @@
 
 You can create tables with `docx`. More information can be found [here](http://officeopenxml.com/WPtable.php).
 
-## How to
+## Create Table
 
-To create a table, simply use the `createTable` method on a `document`.
+To create a table, simply use the `createTable()` method on a `document`.
 
 ```ts
 const table = doc.createTable([NUMBER OF ROWS], [NUMBER OF COLUMNS]);
 ```
 
-Alternatively, you can create a table object directly, and then add it in the document
+Alternatively, you can create a table object directly, and then add it in the `document`
 
 ```ts
 const table = new Table(4, 4);
@@ -36,10 +36,20 @@ The above section created a table with cells. To access the cell, use the `getCe
 const cell = table.getCell([ROW INDEX], [COLUMN INDEX]);
 ```
 
+For example:
+
 ```ts
 const cell = table.getCell(0, 2);
 ```
 
+### Add paragraph to a cell
+
+Once you have got the cell, you can add data to it with the `addParagraph` method.
+
+```ts
+cell.addParagraph(new Paragraph("Hello"));
+```
+
 ## Borders
 
 BorderStyle can be imported from `docx`. Size determines the thickness. HTML color can be a hex code or alias such as `red`.
@@ -107,14 +117,6 @@ To get a row, use the `getRow` method on a `table`. There are a handful of metho
 table.getRow([ROW INDEX]);
 ```
 
-### Add paragraph to a cell
-
-Once you have got the cell, you can add data to it with the `addParagraph` method.
-
-```ts
-cell.addParagraph(new Paragraph("Hello"));
-```
-
 ## Merge cells together
 
 ### Merging on a row

src/file/footer-wrapper.spec.ts

@@ -0,0 +1,29 @@
+import { expect } from "chai";
+import * as sinon from "sinon";
+
+import { FooterWrapper } from "./footer-wrapper";
+import { Media } from "./media";
+import { Paragraph } from "./paragraph";
+import { Table } from "./table";
+
+describe("FooterWrapper", () => {
+    describe("#addParagraph", () => {
+        it("should call the underlying footer's addParagraph", () => {
+            const file = new FooterWrapper(new Media(), 1);
+            const spy = sinon.spy(file.Footer, "addParagraph");
+            file.addParagraph(new Paragraph());
+
+            expect(spy.called).to.equal(true);
+        });
+    });
+
+    describe("#addTable", () => {
+        it("should call the underlying footer's addParagraph", () => {
+            const file = new FooterWrapper(new Media(), 1);
+            const spy = sinon.spy(file.Footer, "addTable");
+            file.addTable(new Table(1, 1));
+
+            expect(spy.called).to.equal(true);
+        });
+    });
+});