Steps

• Ensure the save schema button is disabled until some text is added to the editor
• Create a valid schema using the editor and save the schema. It is best to use the MemeoList schema for testing at https://github.com/aerogear/data-sync-server/blob/master/sequelize/seeders/memeolist-example-shared.js#L22
• Ensure that the schema compiles correctly and each type is displayed in the Data Types section on the page.
• Ensure that each type can be expanded to view the fields and type
• Ensure the schema downloads when the download button is clicked and open the JSON file to verify it is compiled and contains each of the data types
• Change some type in the schema to a random invalid type and ensure that saving the editor fails with a graphql validation editor
• Ensure the editor works as expected: tabs, copy-paste, selecting, etc.