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/*-
* ============LICENSE_START=======================================================
* VID
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2018 Nokia. 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.vid.testUtils;
import org.junit.Test;
import org.onap.vid.utils.Intersection;
import java.util.List;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.util.Lists.emptyList;
import static org.assertj.core.util.Lists.list;
public class IntersectionTest {
@Test
public void testFourArrays() {
// given
List<List<String>> input = list(
list("1", "2"),
list("2", "3"),
list("2", "4"),
list("2", "5")
);
// when
List<String> output = Intersection.of(input);
// then
assertThat(output).containsExactlyInAnyOrder("2");
}
@Test
public void testTwoArrays() {
// given
List<List<String>> input = list(
list("1", "2"),
list("2", "3")
);
// when
List<String> output = Intersection.of(input);
// then
assertThat(output).containsExactlyInAnyOrder("2");
}
@Test
public void testNoIntersection() {
// given
List<List<String>> input = list(
list("1", "2"),
list("3", "4")
);
// when
List<String> output = Intersection.of(input);
// then
assertThat(output).isEmpty();
}
@Test
public void testOneArray() {
// given
List<List<String>> input = list(list("1", "2"));
// when
List<String> output = Intersection.of(input);
// then
assertThat(output).containsExactlyInAnyOrder("1", "2");
}
@Test
public void testEmptyInput() {
// when
List<String> output = Intersection.of(emptyList());
// then
assertThat(output).isEmpty();
}
@Test
public void shouldIgnoreRepetitions() {
// when
List<String> output = Intersection.of(list(
list("1", "1"),
list("1", "1")
));
// then
assertThat(output).containsExactly("1");
}
}
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