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Groovy example source code file (UniqueOnCollectionTest.groovy)
The Groovy UniqueOnCollectionTest.groovy source code/* * Copyright 2003-2010 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 groovy class UniqueOnCollectionTest extends GroovyTestCase { void testUnique() { def list = [-1, 0, 1, 1, 0, -1] assert list.unique() == [-1, 0, 1] } void testUniqueOnListNoDupls() { assert [].unique() == [] assert [1].unique() == [1] assert [1, 2].unique() == [1, 2] def a = [1, 2] assert a.is(a.unique()) } void testUniqueOnListOneDupl() { assert [1, 1].unique() == [1] def a = [1, 1] assert a.is(a.unique()) assert [1, 2, 1].unique() == [1, 2] assert [1, 2, 1, 1].unique() == [1, 2] assert [1, 1, 2].unique() == [1, 2] assert [1, 1, 2, 1].unique() == [1, 2] assert [1, 1, 2, 1, 1].unique() == [1, 2] } void testUniqueOnListTwoDupls() { assert [1, 1, 2, 2].unique() == [1, 2] def a = [1, 1, 2, 2] assert a.is(a.unique()) assert [1, 2, 1, 2].unique() == [1, 2] assert [1, 2, 1, 1, 2].unique() == [1, 2] assert [1, 1, 2, 2].unique() == [1, 2] assert [1, 1, 2, 1, 2].unique() == [1, 2] assert [1, 1, 2, 2, 1, 1, 2, 2].unique() == [1, 2] } void testUniqueOnIterator() { def it = [1, 1, 2, 2].iterator().unique() assert it instanceof Iterator def result = it.toList() assert result == [1, 2] } void testUniqueOnOtherCollections() { def a = new HashSet([1, 1]) assert a.is(a.unique()) assert 1 == a.size() a = new TreeSet([1, 1]) assert a.is(a.unique()) assert 1 == a.size() a = new Vector([1, 1]) assert a.is(a.unique()) assert 1 == a.size() a = new LinkedList([1, 1]) assert a.is(a.unique()) assert 1 == a.size() } /** GROOVY-1006 */ void testUniqueOnDifferentTypes() { def a = [1, 2, (short) 1, 2L, 2.0] def b = a.unique() assert (b == a && a == [1, 2]) a = [Math.PI, "foo", 1.0, 2L, (short) 2, 2.0F] b = a.unique() assert (b == a && a == [Math.PI, "foo", 1.0, 2L]) } /** GROOVY-1956 */ void testUniqueOnListWithNulls() { def x = [1, 2, 3, 1, 2, 3, null, 'a', null] x.unique() assert x == [1, 2, 3, null, 'a'] } } Other Groovy examples (source code examples)Here is a short list of links related to this Groovy UniqueOnCollectionTest.groovy source code file: |
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