ojluni/src/test/java/util/stream/test/org/openjdk/tests/java/util/stream/MatchOpTest.java - platform/libcore - Git at Google

 /*
  * 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.
  */
 package org.openjdk.tests.java.util.stream;

 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.PrimitiveIterator;
 import java.util.Spliterators;
 import java.util.function.DoublePredicate;
 import java.util.function.Function;
 import java.util.function.IntPredicate;
 import java.util.function.LongPredicate;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
 import java.util.stream.DoubleStream;
 import java.util.stream.DoubleStreamTestDataProvider;
 import java.util.stream.IntStream;
 import java.util.stream.IntStreamTestDataProvider;
 import java.util.stream.LongStream;
 import java.util.stream.LongStreamTestDataProvider;
 import java.util.stream.OpTestCase;
 import java.util.stream.Stream;
 import java.util.stream.StreamSupport;
 import java.util.stream.StreamTestDataProvider;
 import java.util.stream.TestData;

 import org.testng.annotations.Test;

 import static java.util.stream.LambdaTestHelpers.countTo;
 import static java.util.stream.LambdaTestHelpers.dpEven;
 import static java.util.stream.LambdaTestHelpers.dpFalse;
 import static java.util.stream.LambdaTestHelpers.dpOdd;
 import static java.util.stream.LambdaTestHelpers.dpTrue;
 import static java.util.stream.LambdaTestHelpers.ipEven;
 import static java.util.stream.LambdaTestHelpers.ipFalse;
 import static java.util.stream.LambdaTestHelpers.ipOdd;
 import static java.util.stream.LambdaTestHelpers.ipTrue;
 import static java.util.stream.LambdaTestHelpers.lpEven;
 import static java.util.stream.LambdaTestHelpers.lpFalse;
 import static java.util.stream.LambdaTestHelpers.lpOdd;
 import static java.util.stream.LambdaTestHelpers.lpTrue;
 import static java.util.stream.LambdaTestHelpers.pEven;
 import static java.util.stream.LambdaTestHelpers.pFalse;
 import static java.util.stream.LambdaTestHelpers.pOdd;
 import static java.util.stream.LambdaTestHelpers.pTrue;

 /**
  * MatchOpTest
  *
  * @author Brian Goetz
  */
 @Test
 public class MatchOpTest extends OpTestCase {
     private enum Kind { ANY, ALL, NONE }

     @SuppressWarnings("unchecked")
     private static final Predicate<Integer>[] INTEGER_PREDICATES
             = (Predicate<Integer>[]) new Predicate<?>[]{pTrue, pFalse, pEven, pOdd};

     @SuppressWarnings({"serial", "rawtypes"})
     private final Map kinds
             = new HashMap<Kind, Function<Predicate<Integer>, Function<Stream<Integer>, Boolean>>>() {{
         put(Kind.ANY, p -> s -> s.anyMatch(p));
         put(Kind.ALL, p -> s -> s.allMatch(p));
         put(Kind.NONE, p -> s -> s.noneMatch(p));
     }};

     @SuppressWarnings("unchecked")
     private <T> Map<Kind, Function<Predicate<T>, Function<Stream<T>, Boolean>>> kinds() {
         return (Map<Kind, Function<Predicate<T>, Function<Stream<T>, Boolean>>>) kinds;
     }

     private <T> void assertPredicates(List<T> source, Kind kind, Predicate<T>[] predicates, boolean... answers) {
         for (int i = 0; i < predicates.length; i++) {
             setContext("i", i);
             boolean match = this.<T>kinds().get(kind).apply(predicates[i]).apply(source.stream());
             assertEquals(answers[i], match, kind.toString() + predicates[i].toString());
         }
     }

     public void testStreamMatches() {
         assertPredicates(countTo(0), Kind.ANY, INTEGER_PREDICATES, false, false, false, false);
         assertPredicates(countTo(0), Kind.ALL, INTEGER_PREDICATES, true, true, true, true);
         assertPredicates(countTo(0), Kind.NONE, INTEGER_PREDICATES, true, true, true, true);

         assertPredicates(countTo(1), Kind.ANY, INTEGER_PREDICATES, true, false, false, true);
         assertPredicates(countTo(1), Kind.ALL, INTEGER_PREDICATES, true, false, false, true);
         assertPredicates(countTo(1), Kind.NONE, INTEGER_PREDICATES, false, true, true, false);

         assertPredicates(countTo(5), Kind.ANY, INTEGER_PREDICATES, true, false, true, true);
         assertPredicates(countTo(5), Kind.ALL, INTEGER_PREDICATES, true, false, false, false);
         assertPredicates(countTo(5), Kind.NONE, INTEGER_PREDICATES, false, true, false, false);
     }

     @Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class)
     public void testStream(String name, TestData.OfRef<Integer> data) {
         for (Predicate<Integer> p : INTEGER_PREDICATES) {
             setContext("p", p);
             for (Kind kind : Kind.values()) {
                 setContext("kind", kind);
                 exerciseTerminalOps(data, this.<Integer>kinds().get(kind).apply(p));
                 exerciseTerminalOps(data, s -> s.filter(pFalse), this.<Integer>kinds().get(kind).apply(p));
                 exerciseTerminalOps(data, s -> s.filter(pEven), this.<Integer>kinds().get(kind).apply(p));
             }
         }
     }

     public void testInfinite() {
         class CycleIterator implements Iterator<Integer> {
             final Supplier<Iterator<Integer>> source;
             Iterator<Integer> i = null;

             CycleIterator(Supplier<Iterator<Integer>> source) {
                 this.source = source;
             }

             @Override
             public Integer next() {
                 if (i == null || !i.hasNext()) {
                     i = source.get();
                 }
                 return i.next();
             }

             @Override
             public boolean hasNext() {
                 if (i == null || !i.hasNext()) {
                     i = source.get();
                 }
                 return i.hasNext();
             }
         }

         Supplier<Iterator<Integer>> source = () -> Arrays.asList(1, 2, 3, 4).iterator();
         Supplier<Stream<Integer>> s = () -> StreamSupport.stream(Spliterators.spliteratorUnknownSize(new CycleIterator(source), 0), false);

         assertFalse(s.get().allMatch(i -> i > 3));
         assertTrue(s.get().anyMatch(i -> i > 3));
         assertFalse(s.get().noneMatch(i -> i > 3));
         assertFalse(s.get().parallel().allMatch(i -> i > 3));
         assertTrue(s.get().parallel().anyMatch(i -> i > 3));
         assertFalse(s.get().parallel().noneMatch(i -> i > 3));
     }

     //

     private static final IntPredicate[] INT_PREDICATES
             = new IntPredicate[]{ipTrue, ipFalse, ipEven, ipOdd};

     @SuppressWarnings("serial")
     private final Map<Kind, Function<IntPredicate, Function<IntStream, Boolean>>> intKinds
             = new HashMap<Kind, Function<IntPredicate, Function<IntStream, Boolean>>>() {{
         put(Kind.ANY, p -> s -> s.anyMatch(p));
         put(Kind.ALL, p -> s -> s.allMatch(p));
         put(Kind.NONE, p -> s -> s.noneMatch(p));
     }};

     private void assertIntPredicates(Supplier<IntStream> source, Kind kind, IntPredicate[] predicates, boolean... answers) {
         for (int i = 0; i < predicates.length; i++) {
             setContext("i", i);
             boolean match = intKinds.get(kind).apply(predicates[i]).apply(source.get());
             assertEquals(answers[i], match, kind.toString() + predicates[i].toString());
         }
     }

     public void testIntStreamMatches() {
         assertIntPredicates(() -> IntStream.range(0, 0), Kind.ANY, INT_PREDICATES, false, false, false, false);
         assertIntPredicates(() -> IntStream.range(0, 0), Kind.ALL, INT_PREDICATES, true, true, true, true);
         assertIntPredicates(() -> IntStream.range(0, 0), Kind.NONE, INT_PREDICATES, true, true, true, true);

         assertIntPredicates(() -> IntStream.range(1, 2), Kind.ANY, INT_PREDICATES, true, false, false, true);
         assertIntPredicates(() -> IntStream.range(1, 2), Kind.ALL, INT_PREDICATES, true, false, false, true);
         assertIntPredicates(() -> IntStream.range(1, 2), Kind.NONE, INT_PREDICATES, false, true, true, false);

         assertIntPredicates(() -> IntStream.range(1, 6), Kind.ANY, INT_PREDICATES, true, false, true, true);
         assertIntPredicates(() -> IntStream.range(1, 6), Kind.ALL, INT_PREDICATES, true, false, false, false);
         assertIntPredicates(() -> IntStream.range(1, 6), Kind.NONE, INT_PREDICATES, false, true, false, false);
     }

     @Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class)
     public void testIntStream(String name, TestData.OfInt data) {
         for (IntPredicate p : INT_PREDICATES) {
             setContext("p", p);
             for (Kind kind : Kind.values()) {
                 setContext("kind", kind);
                 exerciseTerminalOps(data, intKinds.get(kind).apply(p));
                 exerciseTerminalOps(data, s -> s.filter(ipFalse), intKinds.get(kind).apply(p));
                 exerciseTerminalOps(data, s -> s.filter(ipEven), intKinds.get(kind).apply(p));
             }
         }
     }

     public void testIntInfinite() {
         class CycleIterator implements PrimitiveIterator.OfInt {
             final Supplier<PrimitiveIterator.OfInt> source;
             PrimitiveIterator.OfInt i = null;

             CycleIterator(Supplier<PrimitiveIterator.OfInt> source) {
                 this.source = source;
             }

             @Override
             public int nextInt() {
                 if (i == null || !i.hasNext()) {
                     i = source.get();
                 }
                 return i.nextInt();
             }

             @Override
             public boolean hasNext() {
                 if (i == null || !i.hasNext()) {
                     i = source.get();
                 }
                 return i.hasNext();
             }
         }

         Supplier<PrimitiveIterator.OfInt> source = () -> Arrays.stream(new int[]{1, 2, 3, 4}).iterator();
         Supplier<IntStream> s = () -> StreamSupport.intStream(Spliterators.spliteratorUnknownSize(new CycleIterator(source), 0), false);

         assertFalse(s.get().allMatch(i -> i > 3));
         assertTrue(s.get().anyMatch(i -> i > 3));
         assertFalse(s.get().noneMatch(i -> i > 3));
         assertFalse(s.get().parallel().allMatch(i -> i > 3));
         assertTrue(s.get().parallel().anyMatch(i -> i > 3));
         assertFalse(s.get().parallel().noneMatch(i -> i > 3));
     }

     //

     private static final LongPredicate[] LONG_PREDICATES
             = new LongPredicate[]{lpTrue, lpFalse, lpEven, lpOdd};

     @SuppressWarnings("serial")
     private final Map<Kind, Function<LongPredicate, Function<LongStream, Boolean>>> longKinds
             = new HashMap<Kind, Function<LongPredicate, Function<LongStream, Boolean>>>() {{
         put(Kind.ANY, p -> s -> s.anyMatch(p));
         put(Kind.ALL, p -> s -> s.allMatch(p));
         put(Kind.NONE, p -> s -> s.noneMatch(p));
     }};

     private void assertLongPredicates(Supplier<LongStream> source, Kind kind, LongPredicate[] predicates, boolean... answers) {
         for (int i = 0; i < predicates.length; i++) {
             setContext("i", i);
             boolean match = longKinds.get(kind).apply(predicates[i]).apply(source.get());
             assertEquals(answers[i], match, kind.toString() + predicates[i].toString());
         }
     }

     public void testLongStreamMatches() {
         assertLongPredicates(() -> LongStream.range(0, 0), Kind.ANY, LONG_PREDICATES, false, false, false, false);
         assertLongPredicates(() -> LongStream.range(0, 0), Kind.ALL, LONG_PREDICATES, true, true, true, true);
         assertLongPredicates(() -> LongStream.range(0, 0), Kind.NONE, LONG_PREDICATES, true, true, true, true);

         assertLongPredicates(() -> LongStream.range(1, 2), Kind.ANY, LONG_PREDICATES, true, false, false, true);
         assertLongPredicates(() -> LongStream.range(1, 2), Kind.ALL, LONG_PREDICATES, true, false, false, true);
         assertLongPredicates(() -> LongStream.range(1, 2), Kind.NONE, LONG_PREDICATES, false, true, true, false);

         assertLongPredicates(() -> LongStream.range(1, 6), Kind.ANY, LONG_PREDICATES, true, false, true, true);
         assertLongPredicates(() -> LongStream.range(1, 6), Kind.ALL, LONG_PREDICATES, true, false, false, false);
         assertLongPredicates(() -> LongStream.range(1, 6), Kind.NONE, LONG_PREDICATES, false, true, false, false);
     }

     @Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class)
     public void testLongStream(String name, TestData.OfLong data) {
         for (LongPredicate p : LONG_PREDICATES) {
             setContext("p", p);
             for (Kind kind : Kind.values()) {
                 setContext("kind", kind);
                 exerciseTerminalOps(data, longKinds.get(kind).apply(p));
                 exerciseTerminalOps(data, s -> s.filter(lpFalse), longKinds.get(kind).apply(p));
                 exerciseTerminalOps(data, s -> s.filter(lpEven), longKinds.get(kind).apply(p));
             }
         }
     }

     public void testLongInfinite() {
         class CycleIterator implements PrimitiveIterator.OfLong {
             final Supplier<PrimitiveIterator.OfLong> source;
             PrimitiveIterator.OfLong i = null;

             CycleIterator(Supplier<PrimitiveIterator.OfLong> source) {
                 this.source = source;
             }

             @Override
             public long nextLong() {
                 if (i == null || !i.hasNext()) {
                     i = source.get();
                 }
                 return i.nextLong();
             }

             @Override
             public boolean hasNext() {
                 if (i == null || !i.hasNext()) {
                     i = source.get();
                 }
                 return i.hasNext();
             }
         }

         Supplier<PrimitiveIterator.OfLong> source = () -> Arrays.stream(new long[]{1, 2, 3, 4}).iterator();
         Supplier<LongStream> s = () -> StreamSupport.longStream(Spliterators.spliteratorUnknownSize(new CycleIterator(source), 0), false);

         assertFalse(s.get().allMatch(i -> i > 3));
         assertTrue(s.get().anyMatch(i -> i > 3));
         assertFalse(s.get().noneMatch(i -> i > 3));
         assertFalse(s.get().parallel().allMatch(i -> i > 3));
         assertTrue(s.get().parallel().anyMatch(i -> i > 3));
         assertFalse(s.get().parallel().noneMatch(i -> i > 3));
     }

     //

     private static final DoublePredicate[] DOUBLE_PREDICATES
             = new DoublePredicate[]{dpTrue, dpFalse, dpEven, dpOdd};

     @SuppressWarnings("serial")
     private final Map<Kind, Function<DoublePredicate, Function<DoubleStream, Boolean>>> doubleKinds
             = new HashMap<Kind, Function<DoublePredicate, Function<DoubleStream, Boolean>>>() {{
         put(Kind.ANY, p -> s -> s.anyMatch(p));
         put(Kind.ALL, p -> s -> s.allMatch(p));
         put(Kind.NONE, p -> s -> s.noneMatch(p));
     }};

     private void assertDoublePredicates(Supplier<DoubleStream> source, Kind kind, DoublePredicate[] predicates, boolean... answers) {
         for (int i = 0; i < predicates.length; i++) {
             setContext("i", i);
             boolean match = doubleKinds.get(kind).apply(predicates[i]).apply(source.get());
             assertEquals(answers[i], match, kind.toString() + predicates[i].toString());
         }
     }

     public void testDoubleStreamMatches() {
         assertDoublePredicates(() -> LongStream.range(0, 0).asDoubleStream(), Kind.ANY, DOUBLE_PREDICATES, false, false, false, false);
         assertDoublePredicates(() -> LongStream.range(0, 0).asDoubleStream(), Kind.ALL, DOUBLE_PREDICATES, true, true, true, true);
         assertDoublePredicates(() -> LongStream.range(0, 0).asDoubleStream(), Kind.NONE, DOUBLE_PREDICATES, true, true, true, true);

         assertDoublePredicates(() -> LongStream.range(1, 2).asDoubleStream(), Kind.ANY, DOUBLE_PREDICATES, true, false, false, true);
         assertDoublePredicates(() -> LongStream.range(1, 2).asDoubleStream(), Kind.ALL, DOUBLE_PREDICATES, true, false, false, true);
         assertDoublePredicates(() -> LongStream.range(1, 2).asDoubleStream(), Kind.NONE, DOUBLE_PREDICATES, false, true, true, false);

         assertDoublePredicates(() -> LongStream.range(1, 6).asDoubleStream(), Kind.ANY, DOUBLE_PREDICATES, true, false, true, true);
         assertDoublePredicates(() -> LongStream.range(1, 6).asDoubleStream(), Kind.ALL, DOUBLE_PREDICATES, true, false, false, false);
         assertDoublePredicates(() -> LongStream.range(1, 6).asDoubleStream(), Kind.NONE, DOUBLE_PREDICATES, false, true, false, false);
     }

     @Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class)
     public void testDoubleStream(String name, TestData.OfDouble data) {
         for (DoublePredicate p : DOUBLE_PREDICATES) {
             setContext("p", p);
             for (Kind kind : Kind.values()) {
                 setContext("kind", kind);
                 exerciseTerminalOps(data, doubleKinds.get(kind).apply(p));
                 exerciseTerminalOps(data, s -> s.filter(dpFalse), doubleKinds.get(kind).apply(p));
                 exerciseTerminalOps(data, s -> s.filter(dpEven), doubleKinds.get(kind).apply(p));
             }
         }
     }

     public void testDoubleInfinite() {
         class CycleIterator implements PrimitiveIterator.OfDouble {
             final Supplier<PrimitiveIterator.OfDouble> source;
             PrimitiveIterator.OfDouble i = null;

             CycleIterator(Supplier<PrimitiveIterator.OfDouble> source) {
                 this.source = source;
             }

             @Override
             public double nextDouble() {
                 if (i == null || !i.hasNext()) {
                     i = source.get();
                 }
                 return i.nextDouble();
             }

             @Override
             public boolean hasNext() {
                 if (i == null || !i.hasNext()) {
                     i = source.get();
                 }
                 return i.hasNext();
             }
         }

         Supplier<PrimitiveIterator.OfDouble> source = () -> Arrays.stream(new double[]{1, 2, 3, 4}).iterator();
         Supplier<DoubleStream> s = () -> StreamSupport.doubleStream(Spliterators.spliteratorUnknownSize(new CycleIterator(source), 0), false);

         assertFalse(s.get().allMatch(i -> i > 3));
         assertTrue(s.get().anyMatch(i -> i > 3));
         assertFalse(s.get().noneMatch(i -> i > 3));
         assertFalse(s.get().parallel().allMatch(i -> i > 3));
         assertTrue(s.get().parallel().anyMatch(i -> i > 3));
         assertFalse(s.get().parallel().noneMatch(i -> i > 3));
     }
 }
	/*
	* 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.
	*/
	package org.openjdk.tests.java.util.stream;

	import java.util.Arrays;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Map;
	import java.util.PrimitiveIterator;
	import java.util.Spliterators;
	import java.util.function.DoublePredicate;
	import java.util.function.Function;
	import java.util.function.IntPredicate;
	import java.util.function.LongPredicate;
	import java.util.function.Predicate;
	import java.util.function.Supplier;
	import java.util.stream.DoubleStream;
	import java.util.stream.DoubleStreamTestDataProvider;
	import java.util.stream.IntStream;
	import java.util.stream.IntStreamTestDataProvider;
	import java.util.stream.LongStream;
	import java.util.stream.LongStreamTestDataProvider;
	import java.util.stream.OpTestCase;
	import java.util.stream.Stream;
	import java.util.stream.StreamSupport;
	import java.util.stream.StreamTestDataProvider;
	import java.util.stream.TestData;

	import org.testng.annotations.Test;

	import static java.util.stream.LambdaTestHelpers.countTo;
	import static java.util.stream.LambdaTestHelpers.dpEven;
	import static java.util.stream.LambdaTestHelpers.dpFalse;
	import static java.util.stream.LambdaTestHelpers.dpOdd;
	import static java.util.stream.LambdaTestHelpers.dpTrue;
	import static java.util.stream.LambdaTestHelpers.ipEven;
	import static java.util.stream.LambdaTestHelpers.ipFalse;
	import static java.util.stream.LambdaTestHelpers.ipOdd;
	import static java.util.stream.LambdaTestHelpers.ipTrue;
	import static java.util.stream.LambdaTestHelpers.lpEven;
	import static java.util.stream.LambdaTestHelpers.lpFalse;
	import static java.util.stream.LambdaTestHelpers.lpOdd;
	import static java.util.stream.LambdaTestHelpers.lpTrue;
	import static java.util.stream.LambdaTestHelpers.pEven;
	import static java.util.stream.LambdaTestHelpers.pFalse;
	import static java.util.stream.LambdaTestHelpers.pOdd;
	import static java.util.stream.LambdaTestHelpers.pTrue;

	/**
	* MatchOpTest
	*
	* @author Brian Goetz
	*/
	@Test
	public class MatchOpTest extends OpTestCase {
	private enum Kind { ANY, ALL, NONE }

	@SuppressWarnings("unchecked")
	private static final Predicate<Integer>[] INTEGER_PREDICATES
	= (Predicate<Integer>[]) new Predicate<?>[]{pTrue, pFalse, pEven, pOdd};

	@SuppressWarnings({"serial", "rawtypes"})
	private final Map kinds
	= new HashMap<Kind, Function<Predicate<Integer>, Function<Stream<Integer>, Boolean>>>() {{
	put(Kind.ANY, p -> s -> s.anyMatch(p));
	put(Kind.ALL, p -> s -> s.allMatch(p));
	put(Kind.NONE, p -> s -> s.noneMatch(p));
	}};

	@SuppressWarnings("unchecked")
	private <T> Map<Kind, Function<Predicate<T>, Function<Stream<T>, Boolean>>> kinds() {
	return (Map<Kind, Function<Predicate<T>, Function<Stream<T>, Boolean>>>) kinds;
	}

	private <T> void assertPredicates(List<T> source, Kind kind, Predicate<T>[] predicates, boolean... answers) {
	for (int i = 0; i < predicates.length; i++) {
	setContext("i", i);
	boolean match = this.<T>kinds().get(kind).apply(predicates[i]).apply(source.stream());
	assertEquals(answers[i], match, kind.toString() + predicates[i].toString());
	}
	}

	public void testStreamMatches() {
	assertPredicates(countTo(0), Kind.ANY, INTEGER_PREDICATES, false, false, false, false);
	assertPredicates(countTo(0), Kind.ALL, INTEGER_PREDICATES, true, true, true, true);
	assertPredicates(countTo(0), Kind.NONE, INTEGER_PREDICATES, true, true, true, true);

	assertPredicates(countTo(1), Kind.ANY, INTEGER_PREDICATES, true, false, false, true);
	assertPredicates(countTo(1), Kind.ALL, INTEGER_PREDICATES, true, false, false, true);
	assertPredicates(countTo(1), Kind.NONE, INTEGER_PREDICATES, false, true, true, false);

	assertPredicates(countTo(5), Kind.ANY, INTEGER_PREDICATES, true, false, true, true);
	assertPredicates(countTo(5), Kind.ALL, INTEGER_PREDICATES, true, false, false, false);
	assertPredicates(countTo(5), Kind.NONE, INTEGER_PREDICATES, false, true, false, false);
	}

	@Test(dataProvider = "StreamTestData<Integer>", dataProviderClass = StreamTestDataProvider.class)
	public void testStream(String name, TestData.OfRef<Integer> data) {
	for (Predicate<Integer> p : INTEGER_PREDICATES) {
	setContext("p", p);
	for (Kind kind : Kind.values()) {
	setContext("kind", kind);
	exerciseTerminalOps(data, this.<Integer>kinds().get(kind).apply(p));
	exerciseTerminalOps(data, s -> s.filter(pFalse), this.<Integer>kinds().get(kind).apply(p));
	exerciseTerminalOps(data, s -> s.filter(pEven), this.<Integer>kinds().get(kind).apply(p));
	}
	}
	}

	public void testInfinite() {
	class CycleIterator implements Iterator<Integer> {
	final Supplier<Iterator<Integer>> source;
	Iterator<Integer> i = null;

	CycleIterator(Supplier<Iterator<Integer>> source) {
	this.source = source;
	}

	@Override
	public Integer next() {
	if (i == null \|\| !i.hasNext()) {
	i = source.get();
	}
	return i.next();
	}

	@Override
	public boolean hasNext() {
	if (i == null \|\| !i.hasNext()) {
	i = source.get();
	}
	return i.hasNext();
	}
	}

	Supplier<Iterator<Integer>> source = () -> Arrays.asList(1, 2, 3, 4).iterator();
	Supplier<Stream<Integer>> s = () -> StreamSupport.stream(Spliterators.spliteratorUnknownSize(new CycleIterator(source), 0), false);

	assertFalse(s.get().allMatch(i -> i > 3));
	assertTrue(s.get().anyMatch(i -> i > 3));
	assertFalse(s.get().noneMatch(i -> i > 3));
	assertFalse(s.get().parallel().allMatch(i -> i > 3));
	assertTrue(s.get().parallel().anyMatch(i -> i > 3));
	assertFalse(s.get().parallel().noneMatch(i -> i > 3));
	}

	//

	private static final IntPredicate[] INT_PREDICATES
	= new IntPredicate[]{ipTrue, ipFalse, ipEven, ipOdd};

	@SuppressWarnings("serial")
	private final Map<Kind, Function<IntPredicate, Function<IntStream, Boolean>>> intKinds
	= new HashMap<Kind, Function<IntPredicate, Function<IntStream, Boolean>>>() {{
	put(Kind.ANY, p -> s -> s.anyMatch(p));
	put(Kind.ALL, p -> s -> s.allMatch(p));
	put(Kind.NONE, p -> s -> s.noneMatch(p));
	}};

	private void assertIntPredicates(Supplier<IntStream> source, Kind kind, IntPredicate[] predicates, boolean... answers) {
	for (int i = 0; i < predicates.length; i++) {
	setContext("i", i);
	boolean match = intKinds.get(kind).apply(predicates[i]).apply(source.get());
	assertEquals(answers[i], match, kind.toString() + predicates[i].toString());
	}
	}

	public void testIntStreamMatches() {
	assertIntPredicates(() -> IntStream.range(0, 0), Kind.ANY, INT_PREDICATES, false, false, false, false);
	assertIntPredicates(() -> IntStream.range(0, 0), Kind.ALL, INT_PREDICATES, true, true, true, true);
	assertIntPredicates(() -> IntStream.range(0, 0), Kind.NONE, INT_PREDICATES, true, true, true, true);

	assertIntPredicates(() -> IntStream.range(1, 2), Kind.ANY, INT_PREDICATES, true, false, false, true);
	assertIntPredicates(() -> IntStream.range(1, 2), Kind.ALL, INT_PREDICATES, true, false, false, true);
	assertIntPredicates(() -> IntStream.range(1, 2), Kind.NONE, INT_PREDICATES, false, true, true, false);

	assertIntPredicates(() -> IntStream.range(1, 6), Kind.ANY, INT_PREDICATES, true, false, true, true);
	assertIntPredicates(() -> IntStream.range(1, 6), Kind.ALL, INT_PREDICATES, true, false, false, false);
	assertIntPredicates(() -> IntStream.range(1, 6), Kind.NONE, INT_PREDICATES, false, true, false, false);
	}

	@Test(dataProvider = "IntStreamTestData", dataProviderClass = IntStreamTestDataProvider.class)
	public void testIntStream(String name, TestData.OfInt data) {
	for (IntPredicate p : INT_PREDICATES) {
	setContext("p", p);
	for (Kind kind : Kind.values()) {
	setContext("kind", kind);
	exerciseTerminalOps(data, intKinds.get(kind).apply(p));
	exerciseTerminalOps(data, s -> s.filter(ipFalse), intKinds.get(kind).apply(p));
	exerciseTerminalOps(data, s -> s.filter(ipEven), intKinds.get(kind).apply(p));
	}
	}
	}

	public void testIntInfinite() {
	class CycleIterator implements PrimitiveIterator.OfInt {
	final Supplier<PrimitiveIterator.OfInt> source;
	PrimitiveIterator.OfInt i = null;

	CycleIterator(Supplier<PrimitiveIterator.OfInt> source) {
	this.source = source;
	}

	@Override
	public int nextInt() {
	if (i == null \|\| !i.hasNext()) {
	i = source.get();
	}
	return i.nextInt();
	}

	@Override
	public boolean hasNext() {
	if (i == null \|\| !i.hasNext()) {
	i = source.get();
	}
	return i.hasNext();
	}
	}

	Supplier<PrimitiveIterator.OfInt> source = () -> Arrays.stream(new int[]{1, 2, 3, 4}).iterator();
	Supplier<IntStream> s = () -> StreamSupport.intStream(Spliterators.spliteratorUnknownSize(new CycleIterator(source), 0), false);

	assertFalse(s.get().allMatch(i -> i > 3));
	assertTrue(s.get().anyMatch(i -> i > 3));
	assertFalse(s.get().noneMatch(i -> i > 3));
	assertFalse(s.get().parallel().allMatch(i -> i > 3));
	assertTrue(s.get().parallel().anyMatch(i -> i > 3));
	assertFalse(s.get().parallel().noneMatch(i -> i > 3));
	}

	//

	private static final LongPredicate[] LONG_PREDICATES
	= new LongPredicate[]{lpTrue, lpFalse, lpEven, lpOdd};

	@SuppressWarnings("serial")
	private final Map<Kind, Function<LongPredicate, Function<LongStream, Boolean>>> longKinds
	= new HashMap<Kind, Function<LongPredicate, Function<LongStream, Boolean>>>() {{
	put(Kind.ANY, p -> s -> s.anyMatch(p));
	put(Kind.ALL, p -> s -> s.allMatch(p));
	put(Kind.NONE, p -> s -> s.noneMatch(p));
	}};

	private void assertLongPredicates(Supplier<LongStream> source, Kind kind, LongPredicate[] predicates, boolean... answers) {
	for (int i = 0; i < predicates.length; i++) {
	setContext("i", i);
	boolean match = longKinds.get(kind).apply(predicates[i]).apply(source.get());
	assertEquals(answers[i], match, kind.toString() + predicates[i].toString());
	}
	}

	public void testLongStreamMatches() {
	assertLongPredicates(() -> LongStream.range(0, 0), Kind.ANY, LONG_PREDICATES, false, false, false, false);
	assertLongPredicates(() -> LongStream.range(0, 0), Kind.ALL, LONG_PREDICATES, true, true, true, true);
	assertLongPredicates(() -> LongStream.range(0, 0), Kind.NONE, LONG_PREDICATES, true, true, true, true);

	assertLongPredicates(() -> LongStream.range(1, 2), Kind.ANY, LONG_PREDICATES, true, false, false, true);
	assertLongPredicates(() -> LongStream.range(1, 2), Kind.ALL, LONG_PREDICATES, true, false, false, true);
	assertLongPredicates(() -> LongStream.range(1, 2), Kind.NONE, LONG_PREDICATES, false, true, true, false);

	assertLongPredicates(() -> LongStream.range(1, 6), Kind.ANY, LONG_PREDICATES, true, false, true, true);
	assertLongPredicates(() -> LongStream.range(1, 6), Kind.ALL, LONG_PREDICATES, true, false, false, false);
	assertLongPredicates(() -> LongStream.range(1, 6), Kind.NONE, LONG_PREDICATES, false, true, false, false);
	}

	@Test(dataProvider = "LongStreamTestData", dataProviderClass = LongStreamTestDataProvider.class)
	public void testLongStream(String name, TestData.OfLong data) {
	for (LongPredicate p : LONG_PREDICATES) {
	setContext("p", p);
	for (Kind kind : Kind.values()) {
	setContext("kind", kind);
	exerciseTerminalOps(data, longKinds.get(kind).apply(p));
	exerciseTerminalOps(data, s -> s.filter(lpFalse), longKinds.get(kind).apply(p));
	exerciseTerminalOps(data, s -> s.filter(lpEven), longKinds.get(kind).apply(p));
	}
	}
	}

	public void testLongInfinite() {
	class CycleIterator implements PrimitiveIterator.OfLong {
	final Supplier<PrimitiveIterator.OfLong> source;
	PrimitiveIterator.OfLong i = null;

	CycleIterator(Supplier<PrimitiveIterator.OfLong> source) {
	this.source = source;
	}

	@Override
	public long nextLong() {
	if (i == null \|\| !i.hasNext()) {
	i = source.get();
	}
	return i.nextLong();
	}

	@Override
	public boolean hasNext() {
	if (i == null \|\| !i.hasNext()) {
	i = source.get();
	}
	return i.hasNext();
	}
	}

	Supplier<PrimitiveIterator.OfLong> source = () -> Arrays.stream(new long[]{1, 2, 3, 4}).iterator();
	Supplier<LongStream> s = () -> StreamSupport.longStream(Spliterators.spliteratorUnknownSize(new CycleIterator(source), 0), false);

	assertFalse(s.get().allMatch(i -> i > 3));
	assertTrue(s.get().anyMatch(i -> i > 3));
	assertFalse(s.get().noneMatch(i -> i > 3));
	assertFalse(s.get().parallel().allMatch(i -> i > 3));
	assertTrue(s.get().parallel().anyMatch(i -> i > 3));
	assertFalse(s.get().parallel().noneMatch(i -> i > 3));
	}

	//

	private static final DoublePredicate[] DOUBLE_PREDICATES
	= new DoublePredicate[]{dpTrue, dpFalse, dpEven, dpOdd};

	@SuppressWarnings("serial")
	private final Map<Kind, Function<DoublePredicate, Function<DoubleStream, Boolean>>> doubleKinds
	= new HashMap<Kind, Function<DoublePredicate, Function<DoubleStream, Boolean>>>() {{
	put(Kind.ANY, p -> s -> s.anyMatch(p));
	put(Kind.ALL, p -> s -> s.allMatch(p));
	put(Kind.NONE, p -> s -> s.noneMatch(p));
	}};

	private void assertDoublePredicates(Supplier<DoubleStream> source, Kind kind, DoublePredicate[] predicates, boolean... answers) {
	for (int i = 0; i < predicates.length; i++) {
	setContext("i", i);
	boolean match = doubleKinds.get(kind).apply(predicates[i]).apply(source.get());
	assertEquals(answers[i], match, kind.toString() + predicates[i].toString());
	}
	}

	public void testDoubleStreamMatches() {
	assertDoublePredicates(() -> LongStream.range(0, 0).asDoubleStream(), Kind.ANY, DOUBLE_PREDICATES, false, false, false, false);
	assertDoublePredicates(() -> LongStream.range(0, 0).asDoubleStream(), Kind.ALL, DOUBLE_PREDICATES, true, true, true, true);
	assertDoublePredicates(() -> LongStream.range(0, 0).asDoubleStream(), Kind.NONE, DOUBLE_PREDICATES, true, true, true, true);

	assertDoublePredicates(() -> LongStream.range(1, 2).asDoubleStream(), Kind.ANY, DOUBLE_PREDICATES, true, false, false, true);
	assertDoublePredicates(() -> LongStream.range(1, 2).asDoubleStream(), Kind.ALL, DOUBLE_PREDICATES, true, false, false, true);
	assertDoublePredicates(() -> LongStream.range(1, 2).asDoubleStream(), Kind.NONE, DOUBLE_PREDICATES, false, true, true, false);

	assertDoublePredicates(() -> LongStream.range(1, 6).asDoubleStream(), Kind.ANY, DOUBLE_PREDICATES, true, false, true, true);
	assertDoublePredicates(() -> LongStream.range(1, 6).asDoubleStream(), Kind.ALL, DOUBLE_PREDICATES, true, false, false, false);
	assertDoublePredicates(() -> LongStream.range(1, 6).asDoubleStream(), Kind.NONE, DOUBLE_PREDICATES, false, true, false, false);
	}

	@Test(dataProvider = "DoubleStreamTestData", dataProviderClass = DoubleStreamTestDataProvider.class)
	public void testDoubleStream(String name, TestData.OfDouble data) {
	for (DoublePredicate p : DOUBLE_PREDICATES) {
	setContext("p", p);
	for (Kind kind : Kind.values()) {
	setContext("kind", kind);
	exerciseTerminalOps(data, doubleKinds.get(kind).apply(p));
	exerciseTerminalOps(data, s -> s.filter(dpFalse), doubleKinds.get(kind).apply(p));
	exerciseTerminalOps(data, s -> s.filter(dpEven), doubleKinds.get(kind).apply(p));
	}
	}
	}

	public void testDoubleInfinite() {
	class CycleIterator implements PrimitiveIterator.OfDouble {
	final Supplier<PrimitiveIterator.OfDouble> source;
	PrimitiveIterator.OfDouble i = null;

	CycleIterator(Supplier<PrimitiveIterator.OfDouble> source) {
	this.source = source;
	}

	@Override
	public double nextDouble() {
	if (i == null \|\| !i.hasNext()) {
	i = source.get();
	}
	return i.nextDouble();
	}

	@Override
	public boolean hasNext() {
	if (i == null \|\| !i.hasNext()) {
	i = source.get();
	}
	return i.hasNext();
	}
	}

	Supplier<PrimitiveIterator.OfDouble> source = () -> Arrays.stream(new double[]{1, 2, 3, 4}).iterator();
	Supplier<DoubleStream> s = () -> StreamSupport.doubleStream(Spliterators.spliteratorUnknownSize(new CycleIterator(source), 0), false);

	assertFalse(s.get().allMatch(i -> i > 3));
	assertTrue(s.get().anyMatch(i -> i > 3));
	assertFalse(s.get().noneMatch(i -> i > 3));
	assertFalse(s.get().parallel().allMatch(i -> i > 3));
	assertTrue(s.get().parallel().anyMatch(i -> i > 3));
	assertFalse(s.get().parallel().noneMatch(i -> i > 3));
	}
	}