/*
* Copyright Terracotta, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.ehcache.internal.store;
import org.ehcache.ValueSupplier;
import org.ehcache.core.spi.store.Store;
import org.ehcache.core.spi.store.StoreAccessException;
import org.ehcache.expiry.Duration;
import org.ehcache.expiry.Expirations;
import org.ehcache.expiry.Expiry;
import org.ehcache.internal.TestTimeSource;
import org.ehcache.spi.test.After;
import org.ehcache.spi.test.LegalSPITesterException;
import org.ehcache.spi.test.SPITest;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.nullValue;
/**
* Test the {@link Store#putIfAbsent(Object, Object)} contract of the
* {@link Store Store} interface.
*
* @author Aurelien Broszniowski
*/
public class StorePutIfAbsentTest<K, V> extends SPIStoreTester<K, V> {
public StorePutIfAbsentTest(final StoreFactory<K, V> factory) {
super(factory);
}
protected Store<K, V> kvStore;
protected Store kvStore2;
@After
public void tearDown() {
if (kvStore != null) {
factory.close(kvStore);
kvStore = null;
}
if (kvStore2 != null) {
@SuppressWarnings("unchecked")
Store<K, V> kvStore2 = this.kvStore2;
factory.close(kvStore2);
this.kvStore2 = null;
}
}
@SPITest
public void mapsKeyToValueWhenMappingDoesntExist()
throws IllegalAccessException, InstantiationException, LegalSPITesterException {
kvStore = factory.newStore();
K key = factory.createKey(1);
V value = factory.createValue(1);
try {
assertThat(kvStore.putIfAbsent(key, value), is(nullValue()));
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SPITest
public void doesntMapKeyToValueWhenMappingExists()
throws IllegalAccessException, InstantiationException, LegalSPITesterException {
kvStore = factory.newStore();
K key = factory.createKey(1);
V value = factory.createValue(1);
try {
kvStore.put(key, value);
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
V updatedValue = factory.createValue(2);
try {
assertThat(kvStore.putIfAbsent(key, updatedValue).value(), is(equalTo(value)));
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SPITest
public void nullKeyThrowsException()
throws StoreAccessException, IllegalAccessException, InstantiationException {
kvStore = factory.newStore();
K key = null;
V value = factory.createValue(1);
try {
kvStore.putIfAbsent(key, value);
throw new AssertionError("Expected NullPointerException because the key is null");
} catch (NullPointerException e) {
// expected
}
}
@SPITest
public void nullValueThrowsException()
throws StoreAccessException, IllegalAccessException, InstantiationException {
kvStore = factory.newStore();
K key = factory.createKey(1);
V value = null;
try {
kvStore.putIfAbsent(key, value);
throw new AssertionError("Expected NullPointerException because the value is null");
} catch (NullPointerException e) {
// expected
}
}
@SPITest
@SuppressWarnings({ "unchecked", "rawtypes" })
public void wrongKeyTypeThrowsException()
throws IllegalAccessException, InstantiationException, LegalSPITesterException {
kvStore2 = factory.newStore();
V value = factory.createValue(1);
try {
if (this.factory.getKeyType() == String.class) {
kvStore2.putIfAbsent(1.0f, value);
} else {
kvStore2.putIfAbsent("key", value);
}
throw new AssertionError("Expected ClassCastException because the key is of the wrong type");
} catch (ClassCastException e) {
// expected
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SPITest
@SuppressWarnings({ "unchecked", "rawtypes" })
public void wrongValueTypeThrowsException()
throws IllegalAccessException, InstantiationException, LegalSPITesterException {
kvStore2 = factory.newStore();
K key = factory.createKey(1);
try {
if (this.factory.getValueType() == String.class) {
kvStore2.putIfAbsent(key, 1.0f);
} else {
kvStore2.putIfAbsent(key, "value");
}
throw new AssertionError("Expected ClassCastException because the value is of the wrong type");
} catch (ClassCastException e) {
// expected
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
@SPITest
public void testPutIfAbsentValuePresentExpiresOnAccess() throws LegalSPITesterException {
TestTimeSource timeSource = new TestTimeSource(10043L);
kvStore = factory.newStoreWithExpiry(Expirations.builder().setAccess(Duration.ZERO).build(), timeSource);
K key = factory.createKey(250928L);
V value = factory.createValue(2059820L);
V newValue = factory.createValue(205982025L);
try {
kvStore.put(key, value);
assertThat(kvStore.putIfAbsent(key, newValue).value(), is(value));
} catch (StoreAccessException e) {
throw new LegalSPITesterException("Warning, an exception is thrown due to the SPI test");
}
}
}