/*
* Copyright 2002-2016 the original author or authors.
*
* 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.springframework.cache.interceptor;
import org.junit.Test;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
/**
* Tests for {@link SimpleKeyGenerator} and {@link SimpleKey}.
*
* @author Phillip Webb
* @author Stephane Nicoll
*/
public class SimpleKeyGeneratorTests {
private final SimpleKeyGenerator generator = new SimpleKeyGenerator();
@Test
public void noValues() {
Object k1 = generateKey(new Object[] {});
Object k2 = generateKey(new Object[] {});
Object k3 = generateKey(new Object[] { "different" });
assertThat(k1.hashCode(), equalTo(k2.hashCode()));
assertThat(k1.hashCode(), not(equalTo(k3.hashCode())));
assertThat(k1, equalTo(k2));
assertThat(k1, not(equalTo(k3)));
}
@Test
public void singleValue(){
Object k1 = generateKey(new Object[] { "a" });
Object k2 = generateKey(new Object[] { "a" });
Object k3 = generateKey(new Object[] { "different" });
assertThat(k1.hashCode(), equalTo(k2.hashCode()));
assertThat(k1.hashCode(), not(equalTo(k3.hashCode())));
assertThat(k1, equalTo(k2));
assertThat(k1, not(equalTo(k3)));
assertThat(k1, equalTo("a"));
}
@Test
public void multipleValues() {
Object k1 = generateKey(new Object[] { "a", 1, "b" });
Object k2 = generateKey(new Object[] { "a", 1, "b" });
Object k3 = generateKey(new Object[] { "b", 1, "a" });
assertThat(k1.hashCode(), equalTo(k2.hashCode()));
assertThat(k1.hashCode(), not(equalTo(k3.hashCode())));
assertThat(k1, equalTo(k2));
assertThat(k1, not(equalTo(k3)));
}
@Test
public void singleNullValue() {
Object k1 = generateKey(new Object[] { null });
Object k2 = generateKey(new Object[] { null });
Object k3 = generateKey(new Object[] { "different" });
assertThat(k1.hashCode(), equalTo(k2.hashCode()));
assertThat(k1.hashCode(), not(equalTo(k3.hashCode())));
assertThat(k1, equalTo(k2));
assertThat(k1, not(equalTo(k3)));
assertThat(k1, instanceOf(SimpleKey.class));
}
@Test
public void multipleNullValues() {
Object k1 = generateKey(new Object[] { "a", null, "b", null });
Object k2 = generateKey(new Object[] { "a", null, "b", null });
Object k3 = generateKey(new Object[] { "a", null, "b" });
assertThat(k1.hashCode(), equalTo(k2.hashCode()));
assertThat(k1.hashCode(), not(equalTo(k3.hashCode())));
assertThat(k1, equalTo(k2));
assertThat(k1, not(equalTo(k3)));
}
@Test
public void plainArray() {
Object k1 = generateKey(new Object[] { new String[]{"a", "b"} });
Object k2 = generateKey(new Object[] { new String[]{"a", "b"} });
Object k3 = generateKey(new Object[] { new String[]{"b", "a"} });
assertThat(k1.hashCode(), equalTo(k2.hashCode()));
assertThat(k1.hashCode(), not(equalTo(k3.hashCode())));
assertThat(k1, equalTo(k2));
assertThat(k1, not(equalTo(k3)));
}
@Test
public void arrayWithExtraParameter() {
Object k1 = generateKey(new Object[] { new String[]{"a", "b"}, "c" });
Object k2 = generateKey(new Object[] { new String[]{"a", "b"}, "c" });
Object k3 = generateKey(new Object[] { new String[]{"b", "a"}, "c" });
assertThat(k1.hashCode(), equalTo(k2.hashCode()));
assertThat(k1.hashCode(), not(equalTo(k3.hashCode())));
assertThat(k1, equalTo(k2));
assertThat(k1, not(equalTo(k3)));
}
private Object generateKey(Object[] arguments) {
return this.generator.generate(null, null, arguments);
}
}