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/*
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.utils.services;
import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.Test;
public class RegistryTest {
private static final String UNKNOWN = "unknown";
private static final String NAME_STR = "name-string";
private static final String NAME_OBJ = "name-object";
private static final String NAME_INT = "name-integer";
private static final String DATA_STR = "data-1";
private static final Object DATA_OBJ = new Object();
private static final Integer DATA_INT = 5;
/**
* Set up.
*/
@Before
public void setUp() {
Registry.newRegistry();
Registry.register(NAME_STR, DATA_STR);
Registry.register(NAME_OBJ, DATA_OBJ);
Registry.register(NAME_INT, DATA_INT);
}
/**
* Ensure the registry is left empty when done.
*/
@AfterClass
public static void tearDownAfterClass() {
Registry.newRegistry();
}
/**
* Sunny day scenario is tested by other tests, so we focus on exceptions here.
*/
@Test
public void testRegister_Ex() {
assertThatIllegalStateException().isThrownBy(() -> Registry.register(NAME_STR, DATA_STR));
assertThatIllegalArgumentException().isThrownBy(() -> Registry.register(null, DATA_STR));
assertThatIllegalArgumentException().isThrownBy(() -> Registry.register(UNKNOWN, null));
}
@Test
public void testRegisterOrReplace() {
// should be able to replace
Registry.registerOrReplace(NAME_STR, DATA_STR);
Registry.registerOrReplace(NAME_STR, DATA_STR);
assertSame(DATA_STR, Registry.get(NAME_STR, String.class));
// should also be able to add
Registry.registerOrReplace(UNKNOWN, DATA_INT);
assertSame(DATA_INT, Registry.get(UNKNOWN, Integer.class));
// check exception cases
assertThatIllegalArgumentException().isThrownBy(() -> Registry.registerOrReplace(null, DATA_STR));
assertThatIllegalArgumentException().isThrownBy(() -> Registry.registerOrReplace(UNKNOWN, null));
}
@Test
public void testUnregister() {
assertTrue(Registry.unregister(NAME_STR));
assertEquals(null, Registry.getOrDefault(NAME_STR, String.class, null));
assertFalse(Registry.unregister(NAME_STR));
}
@Test
public void testGet() {
assertSame(DATA_STR, Registry.get(NAME_STR, String.class));
assertSame(DATA_OBJ, Registry.get(NAME_OBJ, Object.class));
assertSame(DATA_INT, Registry.get(NAME_INT, Integer.class));
// does not exist
assertThatIllegalArgumentException().isThrownBy(() -> Registry.get(UNKNOWN, Object.class));
// wrong type
assertThatThrownBy(() -> Registry.get(NAME_INT, String.class)).isInstanceOf(ClassCastException.class);
}
@Test
public void testGetOrDefault() {
assertSame(DATA_STR, Registry.getOrDefault(NAME_STR, String.class, null));
assertSame(DATA_OBJ, Registry.getOrDefault(NAME_OBJ, Object.class, "xyz"));
assertSame(DATA_INT, Registry.getOrDefault(NAME_INT, Integer.class, 10));
assertEquals(null, Registry.getOrDefault(UNKNOWN, String.class, null));
assertEquals("abc", Registry.getOrDefault(UNKNOWN, String.class, "abc"));
assertEquals(Integer.valueOf(11), Registry.getOrDefault(UNKNOWN, Integer.class, 11));
}
@Test
public void testNewRegistry() {
assertSame(DATA_STR, Registry.get(NAME_STR, String.class));
Registry.newRegistry();
// should not exist
assertEquals(null, Registry.getOrDefault(NAME_STR, String.class, null));
// should be able to register it again now
Registry.register(NAME_STR, DATA_STR);
assertSame(DATA_STR, Registry.get(NAME_STR, String.class));
}
}
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