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DefaultStorageAccessorTest.java
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DefaultStorageAccessorTest.java
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/**
* Copyright (C) 2019 Czech Technical University in Prague
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jopa.accessors;
import cz.cvut.kbss.jopa.exceptions.OWLPersistenceException;
import cz.cvut.kbss.jopa.exceptions.StorageAccessException;
import cz.cvut.kbss.ontodriver.OntologyStorageProperties;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.mockito.MockitoAnnotations;
import java.lang.reflect.Field;
import java.net.URI;
import java.util.Collections;
import static org.junit.Assert.*;
public class DefaultStorageAccessorTest {
private static final String DATA_SOURCE_CLASS = DataSourceStub.class.getName();
private static final String INVALID_DATA_SOURCE_CLASS = InvalidDataSource.class.getName();
@Rule
public ExpectedException thrown = ExpectedException.none();
@Before
public void setUp() throws Exception {
MockitoAnnotations.initMocks(this);
}
@Test
public void createsDataSourceFromClassName() {
final DefaultStorageAccessor a =
new DefaultStorageAccessor(storageProperties(DATA_SOURCE_CLASS), Collections.emptyMap());
assertNotNull(a);
assertTrue(a.isOpen());
assertTrue(a.acquireConnection() instanceof DataSourceStub.ConnectionStub);
}
private OntologyStorageProperties storageProperties(String driverClass) {
return OntologyStorageProperties.physicalUri(URI.create("file:/tmp/file")).driver(driverClass).build();
}
@Test
public void throwsExceptionWhenDataSourceClassWithoutProperConstructorIsProvided() {
thrown.expect(DataSourceCreationException.class);
thrown.expectMessage("Unable to create instance of OntoDriver data source " + INVALID_DATA_SOURCE_CLASS);
new DefaultStorageAccessor(storageProperties(INVALID_DATA_SOURCE_CLASS), Collections.emptyMap());
}
@Test
public void throwsExceptionWhenUnknownClassIsSpecifiedAsDataSource() {
final String unknownClass = "cz.cvut.kbss.jopa.UnknownDataSource";
thrown.expect(DataSourceCreationException.class);
thrown.expectMessage("Unable to find OntoDriver data source class " + unknownClass);
new DefaultStorageAccessor(storageProperties(unknownClass), Collections.emptyMap());
}
@Test
public void testClose() {
final DefaultStorageAccessor a = new DefaultStorageAccessor(storageProperties(DATA_SOURCE_CLASS),
Collections.emptyMap());
assertTrue(a.isOpen());
a.close();
assertFalse(a.isOpen());
}
@Test
public void closingAccessorMultipleTimesDoesNothing() {
final DefaultStorageAccessor a = new DefaultStorageAccessor(storageProperties(DATA_SOURCE_CLASS),
Collections.emptyMap());
assertTrue(a.isOpen());
a.close();
assertFalse(a.isOpen());
a.close();
assertFalse(a.isOpen());
}
@Test
public void gettingExceptionWhenTryingToAcquireConnectionThrowsStorageAccessException() throws Exception {
thrown.expect(StorageAccessException.class);
thrown.expectMessage("Unable to acquire storage connection.");
final DefaultStorageAccessor a = new DefaultStorageAccessor(storageProperties(DATA_SOURCE_CLASS),
Collections.emptyMap());
final DataSourceStub ds = getDataSourceStub(a);
ds.throwExceptionOnGetConnection();
a.acquireConnection();
}
private DataSourceStub getDataSourceStub(DefaultStorageAccessor a) throws NoSuchFieldException,
IllegalAccessException {
final Field dsField = DefaultStorageAccessor.class.getDeclaredField("dataSource");
dsField.setAccessible(true);
return (DataSourceStub) dsField.get(a);
}
@Test
public void gettingExceptionWhenTryingToCloseDataSourceThrowsStorageAccessExceptionAndClosesAccessor() throws
Exception {
thrown.expect(StorageAccessException.class);
thrown.expectMessage("Error when closing the data source.");
final DefaultStorageAccessor a = new DefaultStorageAccessor(storageProperties(DATA_SOURCE_CLASS),
Collections.emptyMap());
final DataSourceStub ds = getDataSourceStub(a);
ds.throwExceptionOnClose();
try {
a.close();
} finally {
assertFalse(a.isOpen());
}
}
@Test
public void unwrapReturnsMatchingDataSourceInstance() {
final DefaultStorageAccessor a =
new DefaultStorageAccessor(storageProperties(DATA_SOURCE_CLASS), Collections.emptyMap());
final DataSourceStub ds = a.unwrap(DataSourceStub.class);
assertNotNull(ds);
}
@Test
public void unwrapThrowsExceptionWhenNoMatchingInstanceIsFound() {
thrown.expect(OWLPersistenceException.class);
thrown.expectMessage("Instance of class " + String.class + " not found.");
final DefaultStorageAccessor a =
new DefaultStorageAccessor(storageProperties(DATA_SOURCE_CLASS), Collections.emptyMap());
a.unwrap(String.class);
}
}