added run tests

ts/tests/docx/run/textRunTests.ts

@@ -0,0 +1,20 @@
+import {TextRun} from "../../../docx/run/text-run";
+import {assert} from "chai";
+
+function jsonify(obj: Object) {
+    let stringifiedJson = JSON.stringify(obj);
+    return JSON.parse(stringifiedJson);
+}
+
+describe("TextRun", () => {
+    let run: TextRun;
+
+    describe("#constructor()", () => {
+
+        it("should add text into run", () => {
+            run = new TextRun("test");
+            let newJson = jsonify(run);
+            assert.equal(newJson.root[1].root, "test");
+        });
+    });
+});