olemus
komponentide vaheliste interaktsioonide testimine pärast komponentide testimist
= testing the interactions between software components after component testing

ülevaateid
https://www.techtarget.com/searchsoftwarequality/tip/Who-is-responsible-for-integration-testing
https://www.testing.guru/what-is-component-integration-testing/
https://blog.hubspot.com/marketing/integration-testing
https://www.practitest.com/resource-center/article/what-is-integration-testing/