// Copyright 2016 Google Inc. 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.
package com.google.api.ads.common.lib.utils;
import static org.junit.Assert.assertEquals;
import java.util.EnumSet;
import java.util.Set;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
/**
* Tests for {@link AdsUtilityRegistry}.
*/
@RunWith(JUnit4.class)
public class AdsUtilityRegistryTest {
private AdsUtilityRegistry registry = AdsUtilityRegistry.getInstance();
@Rule public ExpectedException thrown = ExpectedException.none();
@Before
public void setUp() throws Exception {
registry.removeUtilities(registry.getRegisteredUtilities());
}
@Test
public void testAddDuplicate() {
Set<AdsUtility> expectedUtilities = EnumSet.<AdsUtility>of(AdsUtility.BATCH_JOB_HELPER);
registry.addUtility(AdsUtility.BATCH_JOB_HELPER);
assertEquals(expectedUtilities, registry.getRegisteredUtilities());
registry.addUtility(AdsUtility.BATCH_JOB_HELPER);
assertEquals(expectedUtilities, registry.getRegisteredUtilities());
}
@Test
public void testRemovePartial() {
// Add the batch job utility.
registry.addUtility(AdsUtility.BATCH_JOB_HELPER);
Set<AdsUtility> addedUtility = EnumSet.<AdsUtility>of(AdsUtility.BATCH_JOB_HELPER);
// Add the product partition tree utility.
registry.addUtility(AdsUtility.PRODUCT_PARTITION_TREE);
// Only remove the batch job utility.
registry.removeUtilities(addedUtility);
assertEquals(
"removeUtilities should only remove the provided utility",
EnumSet.<AdsUtility>of(AdsUtility.PRODUCT_PARTITION_TREE),
registry.getRegisteredUtilities());
}
@Test
public void testAddNull_fails() {
thrown.expect(NullPointerException.class);
thrown.expectMessage("Null ads utility");
registry.addUtility(null);
}
@Test
public void testRemoveNull_fails() {
thrown.expect(NullPointerException.class);
thrown.expectMessage("Null utilities collection");
registry.removeUtilities(null);
}
}