Junit Annotations
Here’re some basic JUnit annotations you should understand:
- @BeforeClass – Run once before any of the test methods in the class,
public static void - @AfterClass – Run once after all the tests in the class have been run,
public static void - @Before – Run before @Test,
public void - @After – Run after @Test,
public void - @Test – This is the test method to run,
public void
import org.junit.*;
public class BasicAnnotationTest {
// Run once, e.g. Database connection, connection pool
@BeforeClass
public static void runOnceBeforeClass() {
System.out.println("@BeforeClass - runOnceBeforeClass");
}
// Run once, e.g close connection, cleanup
@AfterClass
public static void runOnceAfterClass() {
System.out.println("@AfterClass - runOnceAfterClass");
}
// Should rename to @BeforeTestMethod
// e.g. Creating an similar object and share for all @Test
@Before
public void runBeforeTestMethod() {
System.out.println("@Before - runBeforeTestMethod");
}
// Should rename to @AfterTestMethod
@After
public void runAfterTestMethod() {
System.out.println("@After - runAfterTestMethod");
}
@Test
public void test_method_1() {
System.out.println("@Test - test_method_1");
}
@Test
public void test_method_2() {
System.out.println("@Test - test_method_2");
}
}
@BeforeClass - runOnceBeforeClass
@Before - runBeforeTestMethod
@Test - test_method_1
@After - runAfterTestMethod
@Before - runBeforeTestMethod
@Test - test_method_2
@After - runAfterTestMethod
@AfterClass - runOnceAfterClass
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