Integration testing

- With the surface level of the application tested … by manual and UI automation, a QA engineer … might want to move on to test the application … from another perspective. … Integration testing focuses on the interaction … between components at lower layers of the application. … This level of testing covers similar scenarios … as we've seen with manual and UI automation testing, … but doesn't look at what's happening … at the UI level as a result. … Instead, integration tests see how the system reacts … to certain actions. … Integration tests have some knowledge … of how the system works internally, and because of that … they are a type of gray box testing. … QAs or developers usually write these tests … during the build and test phase. … Take for example the scenario of searching … for a one way flight. … Here we can send a request to search for a flight … providing the flight parameters to the server directly … instead of performing the action from the UI. … We'll then wait for the server to send a response …