diff --git a/ts/tests/docx/paragraph/tabStopTests.ts b/ts/tests/docx/paragraph/tabStopTests.ts
index 6be4e1cc7b..0db10d2468 100644
--- a/ts/tests/docx/paragraph/tabStopTests.ts
+++ b/ts/tests/docx/paragraph/tabStopTests.ts
@@ -34,7 +34,7 @@ describe("RightTabStop", () => {
 
 });
 
-describe.only("MaxRightTabStop", () => {
+describe("MaxRightTabStop", () => {
     let tabStop: MaxRightTabStop;
 
     beforeEach(() => {
diff --git a/ts/tests/docx/xml-components/xmlComponentTests.ts b/ts/tests/docx/xml-components/xmlComponentTests.ts
new file mode 100644
index 0000000000..c3980554a0
--- /dev/null
+++ b/ts/tests/docx/xml-components/xmlComponentTests.ts
@@ -0,0 +1,36 @@
+import {XmlComponent} from "../../../docx/xml-components";
+import {assert} from "chai";
+
+function jsonify(obj: Object) {
+    let stringifiedJson = JSON.stringify(obj);
+    return JSON.parse(stringifiedJson);
+}
+
+class TestComponent extends XmlComponent {
+
+}
+
+describe.only("XmlComponent", () => {
+    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 replace the key to the specified root key", () => {
+            xmlComponent.replaceKey();
+            let newJson = jsonify(xmlComponent);
+            assert.isDefined(newJson["w:test"]);
+        });
+    });
+});
\ No newline at end of file