Creating a JUnit test case for a JPA entity

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Creating a JUnit test case for a JPA entity

To create a JUnit test case for a JPA entity, do the following steps:

Create a new package called itso.rad75.bank.test.junit.jpa under RAD75JUnit/src.

Right-click the itso.rad75.bank.test.junit.jpa package and select New Ć JUnit Test Case (only available in the Java perspective), or select New Ć Other Ć Java Ć JUnit Ć JUnit Test Case, or click the arrow in the icon in the toolbar and select .

In the New JUnit Test Case dialog, select New JUnit 4 test, type AccountJPATest as Name, select setUp and tearDown methods, and click Finish (Figure | 3-5).

Figure 23-5 JUnit Test Case Wizard

Implement the AccountJPATest class as shown in Example | 3-6. The code is available in c:\7672code\junit\jpa\AccountJPATest.java.

Example 23-6 JUnit test case for JPA
package itso.rad75.bank.test.junit.jpa;
import ......
public class AccountJPATest {
	EntityManager em;
	@Before
	public void setUp() throws Exception {
		if (em == null) {
			em = Persistence
					.createEntityManagerFactory("RAD75JPA")
					.createEntityManager();
		}
	}
	@After
	public void tearDown() throws Exception {
		if (em != null) {
			em.close();
		}
	}
	
	@Test
	public void testLoadAccount() {
		try {
			Account ac = em.find(Account.class, "001-111001");
			assertNotNull(ac);
		} catch (Exception e) {
			fail("Error: Account not found!");
			e.printStackTrace();
		}
	}
}
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