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test/java/util/stream/bootlib/java.base/java/util/stream/StreamTestDataProvider.java

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   1 /*
   2  * Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */


  29 import java.util.function.Supplier;
  30 
  31 /**
  32  * StreamTestDataProvider
  33  *
  34  * @author Brian Goetz
  35  */
  36 /** TestNG DataProvider for ref-valued streams */
  37 public class StreamTestDataProvider {
  38     private static final Integer[] to0 = new Integer[0];
  39     private static final Integer[] to1 = new Integer[1];
  40     private static final Integer[] to10 = new Integer[10];
  41     private static final Integer[] to100 = new Integer[100];
  42     private static final Integer[] to1000 = new Integer[1000];
  43     private static final Integer[] reversed = new Integer[100];
  44     private static final Integer[] ones = new Integer[100];
  45     private static final Integer[] twice = new Integer[200];
  46     private static final Integer[] pseudoRandom;
  47 
  48     private static final Object[][] testData;

  49     private static final Object[][] withNullTestData;
  50     private static final Object[][] spliteratorTestData;
  51 
  52     static {
  53         Integer[][] arrays = {to0, to1, to10, to100, to1000};
  54         for (Integer[] arr : arrays) {
  55             for (int i = 0; i < arr.length; i++) {
  56                 arr[i] = i;
  57             }
  58         }
  59         for (int i = 0; i < reversed.length; i++) {
  60             reversed[i] = reversed.length - i;
  61         }
  62         for (int i = 0; i < ones.length; i++) {
  63             ones[i] = 1;
  64         }
  65         System.arraycopy(to100, 0, twice, 0, to100.length);
  66         System.arraycopy(to100, 0, twice, to100.length, to100.length);
  67         pseudoRandom = new Integer[LambdaTestHelpers.LONG_STRING.length()];
  68         for (int i = 0; i < LambdaTestHelpers.LONG_STRING.length(); i++) {
  69             pseudoRandom[i] = (int) LambdaTestHelpers.LONG_STRING.charAt(i);
  70         }
  71     }
  72 
  73     static final Object[][] arrays = {
  74             {"empty", to0},
  75             {"0..1", to1},
  76             {"0..10", to10},
  77             {"0..100", to100},
  78             {"0..1000", to1000},
  79             {"100x[1]", ones},
  80             {"2x[0..100]", twice},
  81             {"reverse 0..100", reversed},
  82             {"pseudorandom", pseudoRandom}
  83     };
  84 
  85     static {
  86         {
  87             List<Object[]> list = new ArrayList<>();


  88             for (Object[] data : arrays) {
  89                 final Object name = data[0];
  90                 final Integer[] ints = (Integer[])data[1];
  91                 final List<Integer> intsAsList = Arrays.asList(ints);
  92 


  93                 list.add(arrayDataDescr("array:" + name, ints));
  94                 list.add(collectionDataDescr("ArrayList.asList:" + name, intsAsList));
  95                 list.add(collectionDataDescr("ArrayList:" + name, new ArrayList<>(intsAsList)));
  96                 list.add(streamDataDescr("DelegatingStream(ArrayList):" + name,
  97                                          () -> new ArrayList<>(intsAsList).stream()));
  98                 List<Integer> aList = new ArrayList<>(intsAsList);
  99                 if (LambdaTestMode.isNormalMode()) {
 100                     // Only include sub-lists for normal test execution mode
 101                     // This data is serialization-hostile since the state of the
 102                     // deserialized sub-list will be out of sync with the
 103                     // enclosing list.
 104                     list.add(collectionDataDescr("ArrayList.Sublist:" + name,
 105                                                  (ints.length) <= 1 ? aList.subList(0, 0) : aList.subList(1, ints.length / 2)));
 106                 }
 107                 list.add(collectionDataDescr("LinkedList:" + name, new LinkedList<>(intsAsList)));
 108                 list.add(collectionDataDescr("HashSet:" + name, new HashSet<>(intsAsList)));
 109                 list.add(collectionDataDescr("LinkedHashSet:" + name, new LinkedHashSet<>(intsAsList)));
 110                 list.add(collectionDataDescr("TreeSet:" + name, new TreeSet<>(intsAsList)));
 111                 SpinedBuffer<Integer> spinedBuffer = new SpinedBuffer<>();
 112                 intsAsList.forEach(spinedBuffer);
 113                 list.add(sbDataDescr("SpinedBuffer:" + name, spinedBuffer));
 114 
 115                 // @@@ Add more
 116             }
 117             testData = list.toArray(new Object[0][]);


 118         }
 119 
 120         // Simple combination of numbers and null values, probably excessive but may catch
 121         // errors for initialization/termination/sequence
 122         // @@@ This is separate from the other data for now until nulls are consistently supported by
 123         // all operations
 124         {
 125             List<Object[]> list = new ArrayList<>();
 126             int size = 5;
 127             for (int i = 0; i < (1 << size) - 2; i++) {
 128                 Integer[] content = new Integer[size];
 129                 for (int e = 0; e < size; e++) {
 130                     content[e] = (i & (1 << e)) > 0 ? e + 1 : null;
 131                 }
 132 
 133                 // ORDERED
 134                 list.add(arrayDataDescr("array:" + i, content));
 135                 // not ORDERED, DISTINCT
 136                 list.add(collectionDataDescr("HashSet:" + i, new HashSet<>(Arrays.asList(content))));
 137             }


 175     }
 176 
 177     static <T> Object[] collectionDataDescr(String description, Collection<T> data) {
 178         return new Object[] { description, TestData.Factory.ofCollection(description, data)};
 179     }
 180 
 181     static <T> Object[] sbDataDescr(String description, SpinedBuffer<T> data) {
 182         return new Object[] { description, TestData.Factory.ofSpinedBuffer(description, data)};
 183     }
 184 
 185     static <T> Object[] splitDescr(String description, Supplier<Spliterator<T>> ss) {
 186         return new Object[] { description, ss };
 187     }
 188 
 189     // Return an array of ( String name, StreamTestData<Integer> )
 190     @DataProvider(name = "StreamTestData<Integer>")
 191     public static Object[][] makeStreamTestData() {
 192         return testData;
 193     }
 194 





 195     @DataProvider(name = "withNull:StreamTestData<Integer>")
 196     public static Object[][] makeStreamWithNullTestData() {
 197         return withNullTestData;
 198     }
 199 
 200     // returns an array of (String name, Supplier<Spliterator<Integer>>)
 201     @DataProvider(name = "Spliterator<Integer>")
 202     public static Object[][] spliteratorProvider() {
 203         return spliteratorTestData;
 204     }
 205 }
   1 /*
   2  * Copyright (c) 2012, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */


  29 import java.util.function.Supplier;
  30 
  31 /**
  32  * StreamTestDataProvider
  33  *
  34  * @author Brian Goetz
  35  */
  36 /** TestNG DataProvider for ref-valued streams */
  37 public class StreamTestDataProvider {
  38     private static final Integer[] to0 = new Integer[0];
  39     private static final Integer[] to1 = new Integer[1];
  40     private static final Integer[] to10 = new Integer[10];
  41     private static final Integer[] to100 = new Integer[100];
  42     private static final Integer[] to1000 = new Integer[1000];
  43     private static final Integer[] reversed = new Integer[100];
  44     private static final Integer[] ones = new Integer[100];
  45     private static final Integer[] twice = new Integer[200];
  46     private static final Integer[] pseudoRandom;
  47 
  48     private static final Object[][] testData;
  49     private static final Object[][] testSmallData;
  50     private static final Object[][] withNullTestData;
  51     private static final Object[][] spliteratorTestData;
  52 
  53     static {
  54         Integer[][] arrays = {to0, to1, to10, to100, to1000};
  55         for (Integer[] arr : arrays) {
  56             for (int i = 0; i < arr.length; i++) {
  57                 arr[i] = i;
  58             }
  59         }
  60         for (int i = 0; i < reversed.length; i++) {
  61             reversed[i] = reversed.length - i;
  62         }
  63         for (int i = 0; i < ones.length; i++) {
  64             ones[i] = 1;
  65         }
  66         System.arraycopy(to100, 0, twice, 0, to100.length);
  67         System.arraycopy(to100, 0, twice, to100.length, to100.length);
  68         pseudoRandom = new Integer[LambdaTestHelpers.LONG_STRING.length()];
  69         for (int i = 0; i < LambdaTestHelpers.LONG_STRING.length(); i++) {
  70             pseudoRandom[i] = (int) LambdaTestHelpers.LONG_STRING.charAt(i);
  71         }
  72     }
  73 
  74     static final Object[][] arrays = {
  75             {"empty", to0},
  76             {"0..1", to1},
  77             {"0..10", to10},
  78             {"0..100", to100},
  79             {"0..1000", to1000},
  80             {"100x[1]", ones},
  81             {"2x[0..100]", twice},
  82             {"reverse 0..100", reversed},
  83             {"pseudorandom", pseudoRandom}
  84     };
  85 
  86     static {
  87         {
  88             List<Object[]> listSmall = new ArrayList<>();
  89             List<Object[]> list1000 = new ArrayList<>();
  90             List<Object[]> list = null;
  91             for (Object[] data : arrays) {
  92                 final Object name = data[0];
  93                 final Integer[] ints = (Integer[])data[1];
  94                 final List<Integer> intsAsList = Arrays.asList(ints);
  95 
  96                 list = ints.length >= 1000 ? list1000 : listSmall;
  97 
  98                 list.add(arrayDataDescr("array:" + name, ints));
  99                 list.add(collectionDataDescr("ArrayList.asList:" + name, intsAsList));
 100                 list.add(collectionDataDescr("ArrayList:" + name, new ArrayList<>(intsAsList)));
 101                 list.add(streamDataDescr("DelegatingStream(ArrayList):" + name,
 102                                          () -> new ArrayList<>(intsAsList).stream()));
 103                 List<Integer> aList = new ArrayList<>(intsAsList);
 104                 if (LambdaTestMode.isNormalMode()) {
 105                     // Only include sub-lists for normal test execution mode
 106                     // This data is serialization-hostile since the state of the
 107                     // deserialized sub-list will be out of sync with the
 108                     // enclosing list.
 109                     list.add(collectionDataDescr("ArrayList.Sublist:" + name,
 110                                                  (ints.length) <= 1 ? aList.subList(0, 0) : aList.subList(1, ints.length / 2)));
 111                 }
 112                 list.add(collectionDataDescr("LinkedList:" + name, new LinkedList<>(intsAsList)));
 113                 list.add(collectionDataDescr("HashSet:" + name, new HashSet<>(intsAsList)));
 114                 list.add(collectionDataDescr("LinkedHashSet:" + name, new LinkedHashSet<>(intsAsList)));
 115                 list.add(collectionDataDescr("TreeSet:" + name, new TreeSet<>(intsAsList)));
 116                 SpinedBuffer<Integer> spinedBuffer = new SpinedBuffer<>();
 117                 intsAsList.forEach(spinedBuffer);
 118                 list.add(sbDataDescr("SpinedBuffer:" + name, spinedBuffer));
 119 
 120                 // @@@ Add more
 121             }
 122             testSmallData = listSmall.toArray(new Object[0][]);
 123             list1000.addAll(listSmall);
 124             testData = list1000.toArray(new Object[0][]);
 125         }
 126 
 127         // Simple combination of numbers and null values, probably excessive but may catch
 128         // errors for initialization/termination/sequence
 129         // @@@ This is separate from the other data for now until nulls are consistently supported by
 130         // all operations
 131         {
 132             List<Object[]> list = new ArrayList<>();
 133             int size = 5;
 134             for (int i = 0; i < (1 << size) - 2; i++) {
 135                 Integer[] content = new Integer[size];
 136                 for (int e = 0; e < size; e++) {
 137                     content[e] = (i & (1 << e)) > 0 ? e + 1 : null;
 138                 }
 139 
 140                 // ORDERED
 141                 list.add(arrayDataDescr("array:" + i, content));
 142                 // not ORDERED, DISTINCT
 143                 list.add(collectionDataDescr("HashSet:" + i, new HashSet<>(Arrays.asList(content))));
 144             }


 182     }
 183 
 184     static <T> Object[] collectionDataDescr(String description, Collection<T> data) {
 185         return new Object[] { description, TestData.Factory.ofCollection(description, data)};
 186     }
 187 
 188     static <T> Object[] sbDataDescr(String description, SpinedBuffer<T> data) {
 189         return new Object[] { description, TestData.Factory.ofSpinedBuffer(description, data)};
 190     }
 191 
 192     static <T> Object[] splitDescr(String description, Supplier<Spliterator<T>> ss) {
 193         return new Object[] { description, ss };
 194     }
 195 
 196     // Return an array of ( String name, StreamTestData<Integer> )
 197     @DataProvider(name = "StreamTestData<Integer>")
 198     public static Object[][] makeStreamTestData() {
 199         return testData;
 200     }
 201 
 202     @DataProvider(name = "StreamTestData<Integer>.small")
 203     public static Object[][] makeSmallStreamTestData() {
 204         return testSmallData;
 205     }
 206 
 207     @DataProvider(name = "withNull:StreamTestData<Integer>")
 208     public static Object[][] makeStreamWithNullTestData() {
 209         return withNullTestData;
 210     }
 211 
 212     // returns an array of (String name, Supplier<Spliterator<Integer>>)
 213     @DataProvider(name = "Spliterator<Integer>")
 214     public static Object[][] spliteratorProvider() {
 215         return spliteratorTestData;
 216     }
 217 }
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