added tests for PageTitle component

repaired failing homepage test

src/elements/PageTitle/PageTitle.js

@@ -14,7 +14,9 @@ class PageTitle extends React.Component {
             <div className='pageheader'>
                 <span className='pageheadertitle'>{this.props.title}</span>
                 <span className='pageheadersubtitle'>{this.props.subtitle}</span>
-                {this.props.children}
+                <>
+                    {this.props.children}
+                </>
                 <hr/>
             </div>
         );

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");
+    });
 });
 

src/pages/HomePage/HomePage.test.js

@@ -52,14 +52,14 @@ describe('<HomePage/>', function () {
     it('test title and nr insertions', function () {
         const wrapper = shallow(<HomePage/>);
 
-        expect(wrapper.find(".pageheadersubtitle").text()).toBe("All Videos - 0");
+        expect(wrapper.find("PageTitle").props().subtitle).toBe("All Videos - 0");
 
         wrapper.setState({
             tag: "testtag",
             selectionnr: 42
         });
 
-        expect(wrapper.find(".pageheadersubtitle").text()).toBe("testtag Videos - 42");
+        expect(wrapper.find("PageTitle").props().subtitle).toBe("testtag Videos - 42");
     });
 
     it('test search field', done => {