Example usage for com.google.common.collect.testing.features MapFeature ALLOWS_NULL_KEYS

Introduction

In this page you can find the example usage for com.google.common.collect.testing.features MapFeature ALLOWS_NULL_KEYS.

Prototype

MapFeature ALLOWS_NULL_KEYS

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Usage

From source file:org.java0.collection.HashSetMapSuite.java

public static TestSuite suite() {

    TestMapGenerator<String, Set<String>> generator = new TestMapGenerator<String, Set<String>>() {

        @Override//from w ww .j  a v  a  2 s  .co  m
        public SampleElements<Map.Entry<String, Set<String>>> samples() {
            return new SampleElements<Map.Entry<String, Set<String>>>(
                    Helpers.mapEntry("AAA",
                            (Set<String>) new HashSet<String>(Arrays.asList(new String[] { "111", "222" }))),
                    Helpers.mapEntry("BBB",
                            (Set<String>) new HashSet<String>(Arrays.asList(new String[] { "333", "444" }))),
                    Helpers.mapEntry("CCC",
                            (Set<String>) new HashSet<String>(Arrays.asList(new String[] { "555", "666" }))),
                    Helpers.mapEntry("DDD",
                            (Set<String>) new HashSet<String>(Arrays.asList(new String[] { "777", "888" }))),
                    Helpers.mapEntry("EEE",
                            (Set<String>) new HashSet<String>(Arrays.asList(new String[] { "999", "000" }))));
        }

        @Override
        public Map<String, Set<String>> create(Object... entries) {
            Map<String, Set<String>> map = new HashSetMap<String, String>();
            for (Object o : entries) {
                @SuppressWarnings("unchecked")
                Entry<String, Set<String>> entry = (Entry<String, Set<String>>) o;
                map.put(entry.getKey(), entry.getValue());
            }
            return map;

        }

        @Override
        @SuppressWarnings("unchecked")
        public final Entry<String, Set<String>>[] createArray(int length) {
            return new Entry[length];
        }

        @Override
        public final String[] createKeyArray(int length) {
            return new String[length];
        }

        @SuppressWarnings("unchecked")
        @Override
        public final HashSet<String>[] createValueArray(int length) {
            return new HashSet[length];
        }

        /** Returns the original element list, unchanged. */
        @Override
        public Iterable<Entry<String, Set<String>>> order(List<Entry<String, Set<String>>> insertionOrder) {
            return insertionOrder;
        }
    };

    TestSuite suite = MapTestSuiteBuilder.using(generator).named("HashSetMapSuite")
            .withFeatures(MapFeature.GENERAL_PURPOSE, MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
                    MapFeature.SUPPORTS_PUT, MapFeature.SUPPORTS_REMOVE, MapFeature.ALLOWS_NULL_KEYS,
                    MapFeature.ALLOWS_NULL_VALUES, CollectionFeature.SUPPORTS_ITERATOR_REMOVE,
                    CollectionSize.ANY)
            .createTestSuite();

    return suite;
}

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