added paragraph styles

ts/tests/paragraphTest.ts

@@ -0,0 +1,70 @@
+/// <reference path="../typings/mocha/mocha.d.ts" />
+/// <reference path="../typings/chai/chai.d.ts" />
+import * as docx from "../docx";
+import {assert} from "chai";
+
+describe('Paragraph', () => {
+    var paragraph: docx.Paragraph;
+
+    beforeEach(() => {
+        paragraph = new docx.Paragraph();
+    });
+
+    function jsonify(obj: Object) {
+        var stringifiedJson = JSON.stringify(obj);
+        return JSON.parse(stringifiedJson);
+    }
+
+    describe('#constructor()', () => {
+
+        it("should create valid JSON", () => {
+            console.log(JSON.stringify(paragraph, null, "    "));
+
+            var stringifiedJson = JSON.stringify(paragraph);
+            var newJson;
+
+            try {
+                newJson = JSON.parse(stringifiedJson);
+            } catch (e) {
+                assert.isTrue(false);
+            }
+            assert.isTrue(true);
+        });
+    });
+
+    describe("#heading1()", () => {
+        it("should add heading style to JSON", () => {
+            paragraph.heading1();
+            var newJson = jsonify(paragraph);
+
+            assert(newJson.p[1].pPr[1].pStyle[0]._attrs.val === "Heading1");
+        });
+    });
+
+    describe("#heading2()", () => {
+        it("should add heading style to JSON", () => {
+            paragraph.heading2();
+            var newJson = jsonify(paragraph);
+
+            assert(newJson.p[1].pPr[1].pStyle[0]._attrs.val === "Heading2");
+        });
+    });
+
+    describe("#heading3()", () => {
+        it("should add heading style to JSON", () => {
+            paragraph.heading3();
+            var newJson = jsonify(paragraph);
+
+            assert(newJson.p[1].pPr[1].pStyle[0]._attrs.val === "Heading3");
+        });
+    });
+
+    describe("#title()", () => {
+        it("should add title style to JSON", () => {
+            paragraph.title();
+            var newJson = jsonify(paragraph);
+
+            assert(newJson.p[1].pPr[1].pStyle[0]._attrs.val === "Title");
+        });
+    });
+});