No transactional EntityManager available

Question

I am new to the jpa and spring world and I am currently doing some unit test on a simple method but keep getting this error message only when I run my test class in unit tes

Answer 1

I got a similar problem when I try the unit tests with IntelliJ, even though its working using cli of maven-surefire-plugin

it turns out that IntelliJ build was using javac compiler and even though it specified in pox.xml to use ajc compiler there is a reported bug for IntelliJ at IDEA-135483

that made @Transactional not working and give you No transactional EntityManager available

if that is your case, you need to change java compiler to use ajc instead of javac and post-compile weave mode in project structure