| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Comparator; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.Set; |
| |
| import static org.testng.Assert.assertEquals; |
| import static org.testng.Assert.assertTrue; |
| import static org.testng.Assert.fail; |
| |
| /** |
| * @library |
| * CollectionAssert -- assertion methods for lambda test cases |
| */ |
| public class CollectionAsserts { |
| |
| private CollectionAsserts() { |
| // no instances |
| } |
| |
| public static void assertCountSum(Iterable<? super Integer> it, int count, int sum) { |
| assertCountSum(it.iterator(), count, sum); |
| } |
| |
| public static void assertCountSum(Iterator<? super Integer> it, int count, int sum) { |
| int c = 0; |
| int s = 0; |
| while (it.hasNext()) { |
| int i = (Integer) it.next(); |
| c++; |
| s += i; |
| } |
| |
| assertEquals(c, count); |
| assertEquals(s, sum); |
| } |
| |
| public static void assertConcat(Iterator<Character> it, String result) { |
| StringBuilder sb = new StringBuilder(); |
| while (it.hasNext()) { |
| sb.append(it.next()); |
| } |
| |
| assertEquals(result, sb.toString()); |
| } |
| |
| public static<T extends Comparable<? super T>> void assertSorted(Iterator<T> i) { |
| if (!i.hasNext()) |
| return; |
| T last = i.next(); |
| while (i.hasNext()) { |
| T t = i.next(); |
| assertTrue(last.compareTo(t) <= 0); |
| assertTrue(t.compareTo(last) >= 0); |
| last = t; |
| } |
| } |
| |
| public static<T> void assertSorted(Iterator<T> i, Comparator<? super T> comp) { |
| if (!i.hasNext()) |
| return; |
| T last = i.next(); |
| while (i.hasNext()) { |
| T t = i.next(); |
| assertTrue(comp.compare(last, t) <= 0); |
| assertTrue(comp.compare(t, last) >= 0); |
| last = t; |
| } |
| } |
| |
| public static<T extends Comparable<? super T>> void assertSorted(Iterable<T> iter) { |
| assertSorted(iter.iterator()); |
| } |
| |
| public static<T> void assertSorted(Iterable<T> iter, Comparator<? super T> comp) { |
| assertSorted(iter.iterator(), comp); |
| } |
| |
| public static <T> void assertUnique(Iterable<T> iter) { |
| assertUnique(iter.iterator()); |
| } |
| |
| public static<T> void assertUnique(Iterator<T> iter) { |
| if (!iter.hasNext()) { |
| return; |
| } |
| |
| Set<T> uniq = new HashSet<>(); |
| while (iter.hasNext()) { |
| T each = iter.next(); |
| assertTrue(!uniq.contains(each)); |
| uniq.add(each); |
| } |
| } |
| |
| public static<T> void assertContents(Iterable<T> actual, Iterable<T> expected) { |
| assertContents(actual, expected, null); |
| } |
| |
| public static<T> void assertContents(Iterable<T> actual, Iterable<T> expected, String msg) { |
| assertContents(actual.iterator(), expected.iterator(), msg); |
| } |
| |
| public static<T> void assertContents(Iterator<T> actual, Iterator<T> expected) { |
| assertContents(actual, expected, null); |
| } |
| |
| public static<T> void assertContents(Iterator<T> actual, Iterator<T> expected, String msg) { |
| List<T> history = new ArrayList<>(); |
| |
| while (expected.hasNext()) { |
| if (!actual.hasNext()) { |
| List<T> expectedData = new ArrayList<>(history); |
| while (expected.hasNext()) |
| expectedData.add(expected.next()); |
| fail(String.format("%s Premature end of data; expected=%s, found=%s", |
| (msg == null ? "" : msg), expectedData, history)); |
| } |
| T a = actual.next(); |
| T e = expected.next(); |
| history.add(a); |
| |
| if (!Objects.equals(a, e)) |
| fail(String.format("%s Data mismatch; preceding=%s, nextExpected=%s, nextFound=%s", |
| (msg == null ? "" : msg), history, e, a)); |
| } |
| if (actual.hasNext()) { |
| List<T> rest = new ArrayList<>(); |
| while (actual.hasNext()) |
| rest.add(actual.next()); |
| fail(String.format("%s Unexpected data %s after %s", |
| (msg == null ? "" : msg), rest, history)); |
| } |
| } |
| |
| @SafeVarargs |
| @SuppressWarnings("varargs") |
| public static<T> void assertContents(Iterator<T> actual, T... expected) { |
| assertContents(actual, Arrays.asList(expected).iterator()); |
| } |
| |
| public static<T extends Comparable<? super T>> void assertContentsUnordered(Iterable<T> actual, Iterable<T> expected) { |
| assertContentsUnordered(actual, expected, null); |
| } |
| |
| public static<T extends Comparable<? super T>> void assertContentsUnordered(Iterable<T> actual, Iterable<T> expected, String msg) { |
| List<T> allExpected = new ArrayList<>(); |
| for (T t : expected) { |
| allExpected.add(t); |
| } |
| |
| for (T t : actual) { |
| assertTrue(allExpected.remove(t), msg + " element '" + String.valueOf(t) + "' not found"); |
| } |
| |
| assertTrue(allExpected.isEmpty(), msg + "expected contained additional elements"); |
| } |
| |
| static <T> void assertSplitContents(Iterable<Iterable<T>> splits, Iterable<T> list) { |
| Iterator<Iterable<T>> mI = splits.iterator(); |
| Iterator<T> pI = null; |
| Iterator<T> lI = list.iterator(); |
| |
| while (lI.hasNext()) { |
| if (pI == null) |
| pI = mI.next().iterator(); |
| while (!pI.hasNext()) { |
| if (!mI.hasNext()) { |
| break; |
| } |
| else { |
| pI = mI.next().iterator(); |
| } |
| } |
| assertTrue(pI.hasNext()); |
| T pT = pI.next(); |
| T lT = lI.next(); |
| assertEquals(pT, lT); |
| } |
| |
| if (pI != null) { |
| assertTrue(!pI.hasNext()); |
| } |
| |
| while (mI.hasNext()) { |
| pI = mI.next().iterator(); |
| assertTrue(!pI.hasNext()); |
| } |
| } |
| } |