Junit before class ( non static )

Question

Are there any best practices to get Junit execute a function once in a test file , and it should also not be static.

like @BeforeClass on non static fun

Answer 1

If you don't want to set up static initializers for one time initialization and are not particular about using JUnit, take a look at TestNG. TestNG supports non-static, one-time initialization with a variety of configuration options, all using annotations.

In TestNG, this would be equivalent to:

@org.testng.annotations.BeforeClass
public void setUpOnce() {
   // One time initialization.
}

For teardown,

@org.testng.annotations.AfterClass
public void tearDownOnce() {
   // One time tear down.
}

For the TestNG equivalent of JUnit 4's @Before and @After, you can use @BeforeMethod and @AfterMethod respectively.