fix tests

Author: Dan Carbonell

src/components/Channel/Channel.js

@@ -195,7 +195,7 @@ const Channel = (props) => {
   const initChannel = async () => {
     let initError = false;
 
-    if (!channel.initialized) {
+    if (!channel.initialized && channel.cid) {
       try {
         await channel.watch();
       } catch (e) {

src/components/Channel/__tests__/Channel.test.js

@@ -76,7 +76,7 @@ describe('Channel', () => {
     cleanup();
   });
 
-  it('should render simple text if the channel prop is not provided', async () => {
+  it('should render a simple text error if the channel id does not exist', async () => {
     const nullChannel = { ...channel, cid: null };
     const { getByTestId } = renderComponent({ channel: nullChannel });