wrote lots of tests

ts/tests/docx/xml-components/xmlUnitTests.ts

@@ -0,0 +1,36 @@
+import {XmlUnitComponent} from "../../../docx/xml-components";
+import {assert} from "chai";
+
+function jsonify(obj: Object) {
+    let stringifiedJson = JSON.stringify(obj);
+    return JSON.parse(stringifiedJson);
+}
+
+class TestComponent extends XmlUnitComponent {
+
+}
+
+describe("XmlUnitComponent", () => {
+    let xmlComponent: TestComponent;
+
+    beforeEach(() => {
+        xmlComponent = new TestComponent("w:test");
+    });
+
+    describe("#constructor()", () => {
+
+        it("should create an Xml Component which has the correct rootKey", () => {
+            let newJson = jsonify(xmlComponent);
+            assert.equal(newJson.rootKey, "w:test");
+        });
+    });
+
+    describe("#replaceKey", () => {
+
+        it("should not replace the key to the specified root key as root is null", () => {
+            xmlComponent.replaceKey();
+            let newJson = jsonify(xmlComponent);
+            assert.isUndefined(newJson["w:test"]);
+        });
+    });
+});