Lets Talk about...

Lets Talk about...

integration tests

What are we going to talk about?

What are we going to talk about

• what tools do we need
• what is test/kinds of tests
• graphql - api connection
• what are we going to test

What tools do we need

What tools do we need

• Github
• JavaScript/Node.js/npm/TypeScript
• Jest

Github

• Used to store code, has versioning so working together is not painful (sometimes still painful)
• git cheatsheet / tutorial

JavaScript/Node.js/npm/TypeScript

• Tests are written in JavaScript(TypeScript)
• we are using newest verion including new(ES6/ES2015) features
• Mozilla javascript documentation / articles

Node.js/npm

• Node.js is a non-browser environment, based on v8 engine (same as in Chrome)
• our tests will run in this enviroment
• has it's own modules for backend use
• Node.js documentation

Jest

• npm package for tests running
• Jest documentation

What is test/kinds of tests

• sequence of actions followed by assertion

it('should add 1 + 2 and get 3', () => {
 const result = 1 + 2;
 expect(result).toBe(3);
});

Kinds of tests

• Unit testing
• Integration testing
• System testing
• Sanity testing
• Smoke testing
• Interface testing
• Regression testing
• Beta/Acceptance testing

Integration testing

• testing application as a whole thing
• for example for browser application this should emulate a user doing stuff on the page
• in our case (API testing) we will send requests to our server and will check if response is correct

Graphql - api connection

Graphql

• Defined by a schema
• client can send queries(read) and mutations(write)
• Graphql overview/docs

What are we going to test

• Emulating a client and send query to a graphql server
• graphql server will send querires to REST API and generate a response
• we will "mock" responses from REST API and provide our own responses

Test parts

• REST API mocks
• GraphQL Query
• Assertions

interactive part

• Graphql overview/docs
• REST APIs

That's all for today