Check my excellent documentation here for mocha(unit testing framework), chai(assertion library) etc.
Check a great wiki here
Check myserver.js - Creating a simple http server
Check myserver_hostname.js - How to pass hostname, port and a callback to listen()
Check data_filter.js - Count words count in a sentence
Check 01_connection.js - Testing db connection
Check 02_create_db.js - Creating database
Check 03_create_table.js - Creating table
Check 04_insert_data.js - Inserting data(1 row)
Check 05_insert_multiple_data.js - Inserting data(multiple rows)
Now go to ./examples/express/app6.get.post.put.del then run sh install.sh just only first time.