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PersistenceTest.java
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PersistenceTest.java
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package cz.cvut.kbss.jopa;
import cz.cvut.kbss.jopa.model.*;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import java.util.Collections;
import java.util.Map;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.mockito.Mockito.mock;
public class PersistenceTest {
@Rule
public ExpectedException thrown = ExpectedException.none();
@Test
public void createEmfWithPropertiesInstantiatesPersistenceProviderFromProperties() {
DefaultPersistenceProviderResolver.registerPersistenceProviderClass(TestPersistenceProvider.class);
final Map<String, String> props = Collections.singletonMap(PersistenceProperties.JPA_PERSISTENCE_PROVIDER,
TestPersistenceProvider.class.getName());
Persistence.createEntityManagerFactory("testPU", props);
assertNotNull(TestPersistenceProvider.instance);
assertEquals(1, TestPersistenceProvider.instance.createEmfCalled);
}
@Test
public void createEmfThrowsIllegalArgumentWhenProviderIsNotConfigured() {
DefaultPersistenceProviderResolver.registerPersistenceProviderClass(TestPersistenceProvider.class);
thrown.expect(IllegalArgumentException.class);
thrown.expectMessage("Missing persistence unit provider.");
Persistence.createEntityManagerFactory("testPU", Collections.emptyMap());
}
@Test
public void createEmfThrowsIllegalArgumentWhenConfiguredClassIsNotPersistenceProvider() {
thrown.expect(IllegalArgumentException.class);
thrown.expectMessage(
"Type " + PersistenceTest.class.getName() + " is not a PersistenceProvider implementation.");
final Map<String, String> props = Collections.singletonMap(PersistenceProperties.JPA_PERSISTENCE_PROVIDER,
PersistenceTest.class.getName());
Persistence.createEntityManagerFactory("testPU", props);
}
public static class TestPersistenceProvider implements PersistenceProvider {
private static TestPersistenceProvider instance;
private EntityManagerFactory emfMock = mock(EntityManagerFactory.class);
private ProviderUtil providerUtilMock = mock(ProviderUtil.class);
private int createEmfCalled = 0;
private int getProviderUtilCalled = 0;
public TestPersistenceProvider() {
instance = this;
}
@Override
public EntityManagerFactory createEntityManagerFactory(String emName, Map<String, String> map) {
createEmfCalled++;
return emfMock;
}
@Override
public ProviderUtil getProviderUtil() {
getProviderUtilCalled++;
return providerUtilMock;
}
}
}