added tests for PageTitle component

repaired failing homepage test

src/elements/PageTitle/PageTitle.test.js

@@ -8,5 +8,24 @@ describe('<Preview/>', function () {
         const wrapper = shallow(<PageTitle/>);
         wrapper.unmount();
     });
+
+    it('renders childs correctly', function () {
+        const wrapper = shallow(<PageTitle>heyimachild</PageTitle>);
+
+        const children = wrapper.children();
+        expect(children.at(children.length-2).text()).toBe("heyimachild");
+    });
+
+    it('renders pagetitle prop', function () {
+        const wrapper = shallow(<PageTitle title='testtitle'/>);
+
+        expect(wrapper.find(".pageheader").text()).toBe("testtitle");
+    });
+
+    it('renders subtitle prop', function () {
+        const wrapper = shallow(<PageTitle subtitle='testsubtitle'/>);
+
+        expect(wrapper.find(".pageheadersubtitle").text()).toBe("testsubtitle");
+    });
 });