| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 groovy |
| |
| import groovy.test.GroovyTestCase |
| |
| class UniqueOnCollectionWithComparatorTest extends GroovyTestCase { |
| |
| void testUniqueOnIterator() { |
| def list = [-1, 0, 1, 1, 0, -1] |
| def comparator = new ClosureComparator({ a, b -> Math.abs(a) <=> Math.abs(b) }) |
| def it = list.iterator().unique(comparator) |
| assert it instanceof Iterator |
| def result = it.toList() |
| assert result == [-1, 0] |
| } |
| |
| void testUniqueWithComparatorList() { |
| def list = [-1, 0, 1, 1, 0, -1] |
| def comparator = new ClosureComparator({ a, b -> Math.abs(a) <=> Math.abs(b) }) |
| assert list.unique(comparator) == [-1, 0] |
| } |
| |
| void testUniqueWithComparatorSet() { |
| def set = [-1, 0, 1] as Set |
| def comparator = new ClosureComparator({ a, b -> Math.abs(a) <=> Math.abs(b) }) |
| assert set.unique(comparator).size() == 2 |
| } |
| |
| /** GROOVY-4742 */ |
| void testImmutableUniqueWithComparatorList() { |
| def list = [-1, 0, 1, 1, 0, -1] |
| def comparator = new ClosureComparator({ a, b -> Math.abs(a) <=> Math.abs(b) }) |
| def result = list.unique(false, comparator) |
| assert result == [-1, 0] |
| assert list == [-1, 0, 1, 1, 0, -1] |
| } |
| |
| /** GROOVY-4742 */ |
| void testImmutableUniqueWithComparatorSet() { |
| def set = [-1, 0, 1] as Set |
| def comparator = new ClosureComparator({ a, b -> Math.abs(a) <=> Math.abs(b) }) |
| def result = set.unique(false, comparator).size() |
| assert result == 2 |
| assert set == [-1, 0, 1] as Set |
| } |
| |
| /** GROOVY-4742 */ |
| void testImmutableUniqueWithComparator() { |
| def comparator = [compare: { p1, p2 -> p1.lname <=> p2.lname ?: p1.fname <=> p2.fname }] as Comparator |
| |
| def a = [fname: "John", lname: "Taylor"] |
| def b = [fname: "Clark", lname: "Taylor"] |
| def c = [fname: "Tom", lname: "Cruz"] |
| def d = [fname: "Clark", lname: "Taylor"] |
| |
| def list = [a, b, c, d] |
| List list2 = list.unique(false, comparator) |
| assert (list2 != list && list2 == [a, b, c]) |
| } |
| } |