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com.google.common.collect.testing.Helpers的实例源码

分类：Java实例代码作者：编程之家
项目：googles-monorepo-demo    文件：MultimapTestSuiteBuilder.java    
Set<Feature<?>> computeMultimapGetFeatures(Set<Feature<?>> multimapFeatures) {
  Set<Feature<?>> derivedFeatures = Helpers.copyToSet(multimapFeatures);
  for (Map.Entry<Feature<?>,Feature<?>> entry : GET_FEATURE_MAP.entries()) {
    if (derivedFeatures.contains(entry.getKey())) {
      derivedFeatures.add(entry.getValue());
    }
  }
  if (derivedFeatures.remove(MultimapFeature.VALUE_COLLECTIONS_SUPPORT_IteraTOR_REMOVE)) {
    derivedFeatures.add(CollectionFeature.SUPPORTS_IteraTOR_REMOVE);
  }
  if (!derivedFeatures.contains(CollectionFeature.SERIALIZABLE_INCLUDING_VIEWS)) {
    derivedFeatures.remove(CollectionFeature.SERIALIZABLE);
  }
  derivedFeatures.removeAll(GET_FEATURE_MAP.keySet());
  return derivedFeatures;
}
项目：guava-mock    文件：MultimapRemoveEntryTester.java    
@MapFeature.Require(SUPPORTS_REMOVE)
@CollectionSize.Require(absent = ZERO)
public void testRemovePropagatesToAsMap() {
  List<Entry<K,V>> entries = Helpers.copyToList(multimap().entries());
  for (Entry<K,V> entry : entries) {
    resetContainer();

    K key = entry.getKey();
    V value = entry.getValue();
    Collection<V> collection = multimap().asMap().get(key);
    assertNotNull(collection);
    Collection<V> expectedCollection = Helpers.copyToList(collection);

    multimap().remove(key,value);
    expectedCollection.remove(value);

    assertEqualIgnoringOrder(expectedCollection,collection);
    assertEquals(!expectedCollection.isEmpty(),multimap().containsKey(key));
  }
}
项目：googles-monorepo-demo    文件：OrderingTest.java    
public void testArbitrary_withCollisions() {
  List<Integer> list = Lists.newArrayList();
  for (int i = 0; i < 50; i++) {
    list.add(i);
  }

  Ordering<Object> arbitrary = new ArbitraryOrdering() {
    @Override int identityHashCode(Object object) {
      return ((Integer) object) % 5; // fake tons of collisions!
    }
  };

  // Don't let the elements be in such a predictable order
  list = shuffledcopy(list,new Random(1));

  Collections.sort(list,arbitrary);

  // Now we don't care what order it's put the list in,only that
  // comparing any pair of elements gives the answer we expect.
  Helpers.testComparator(arbitrary,list);
}
项目：googles-monorepo-demo    文件：MultimapPutTester.java    
@MapFeature.Require(SUPPORTS_PUT)
@CollectionSize.Require(absent = ZERO)
public void testPutPresentKeyPropagatesToAsMapGet() {
  List<K> keys = Helpers.copyToList(multimap().keySet());
  for (K key : keys) {
    resetContainer();

    int size = getNumElements();

    Collection<V> collection = multimap().asMap().get(key);
    assertNotNull(collection);
    Collection<V> expectedCollection = Helpers.copyToList(collection);

    multimap().put(key,v3());
    expectedCollection.add(v3());
    assertEqualIgnoringOrder(expectedCollection,collection);
    assertEquals(size + 1,multimap().size());
  }
}
项目：googles-monorepo-demo    文件：SetMultimapEqualsTester.java    
@CollectionSize.Require(SEVERAL)
public void testOrderingDoesntAffectEqualsComparisons() {
  SetMultimap<K,V> multimap1 =
      getSubjectGenerator()
          .create(
              Helpers.mapEntry(k0(),v0()),Helpers.mapEntry(k0(),v1()),v4()));
  SetMultimap<K,V> multimap2 =
      getSubjectGenerator()
          .create(
              Helpers.mapEntry(k0(),v4()));
  new EqualsTester().addEqualityGroup(multimap1,multimap2).testEquals();
}
项目：guava-mock    文件：OrderingTest.java    
public void testArbitrary_withCollisions() {
  List<Integer> list = Lists.newArrayList();
  for (int i = 0; i < 50; i++) {
    list.add(i);
  }

  Ordering<Object> arbitrary = new ArbitraryOrdering() {
    @Override int identityHashCode(Object object) {
      return ((Integer) object) % 5; // fake tons of collisions!
    }
  };

  // Don't let the elements be in such a predictable order
  list = shuffledcopy(list,list);
}
项目：googles-monorepo-demo    文件：ComparatorsTest.java    
@SuppressWarnings("unchecked") // dang varargs
public void testLexicographical() {
  Comparator<String> comparator = Ordering.natural();
  Comparator<Iterable<String>> lexy = Comparators.lexicographical(comparator);

  ImmutableList<String> empty = ImmutableList.of();
  ImmutableList<String> a = ImmutableList.of("a");
  ImmutableList<String> aa = ImmutableList.of("a","a");
  ImmutableList<String> ab = ImmutableList.of("a","b");
  ImmutableList<String> b = ImmutableList.of("b");

  Helpers.testComparator(lexy,empty,a,aa,ab,b);

  new EqualsTester()
      .addEqualityGroup(lexy,Comparators.lexicographical(comparator))
      .addEqualityGroup(Comparators.lexicographical(String.CASE_INSENSITIVE_ORDER))
      .addEqualityGroup(Ordering.natural())
      .testEquals();
}
项目：guava-mock    文件：AbstractImmutableSetTest.java    
/**
 * Verify thread safety by using a collection whose size() may be inconsistent
 * with the actual number of elements.  Tests using this method might fail in
 * GWT because the GWT emulations might count on size() during copy.  It is
 * safe to do so in GWT because javascript is single-threaded.
 */
// Todo(benyu): turn this into a test once all copyOf(Collection) are
// thread-safe
@GwtIncompatible // GWT is single threaded
void verifyThreadSafe() {
  List<String> sample = Lists.newArrayList("a","b","c");
  for (int delta : new int[] {-1,1}) {
    for (int i = 0; i < sample.size(); i++) {
      Collection<String> misleading = Helpers.misleadingSizeCollection(delta);
      List<String> expected = sample.subList(0,i);
      misleading.addAll(expected);
      assertEquals("delta: " + delta + " sample size: " + i,Sets.newHashSet(expected),copyOf(misleading));
    }
  }
}
项目：googles-monorepo-demo    文件：NavigableSetNavigationTester.java    
@Override
public void setUp() throws Exception {
  super.setUp();
  navigableSet = (NavigableSet<E>) getSet();
  values =
      Helpers.copyToList(
          getSubjectGenerator()
              .getSampleElements(getSubjectGenerator().getCollectionSize().getNumElements()));
  Collections.sort(values,navigableSet.comparator());

  // some tests assume SEVERAL == 3
  if (values.size() >= 1) {
    a = values.get(0);
    if (values.size() >= 3) {
      b = values.get(1);
      c = values.get(2);
    }
  }
}
项目：googles-monorepo-demo    文件：MultimapEntriesTester.java    
@CollectionSize.Require(ONE)
@CollectionFeature.Require(SUPPORTS_IteraTOR_REMOVE)
public void testIteratorRemovePropagatesToMultimap() {
  Iterator<Entry<K,V>> iterator = multimap().entries().iterator();
  assertEquals(Helpers.mapEntry(k0(),iterator.next());
  iterator.remove();
  assertTrue(multimap().isEmpty());
}
项目：googles-monorepo-demo    文件：DoublesTest.java    
public void testLexicographicalComparator() {
  List<double[]> ordered = Arrays.asList(
      new double[] {},new double[] {LEAST},new double[] {LEAST,LEAST},(double) 1},new double[] {(double) 1},new double[] {(double) 1,new double[] {GREATEST,Double.MAX_VALUE},GREATEST},GREATEST,GREATEST});

  Comparator<double[]> comparator = Doubles.lexicographicalComparator();
  Helpers.testComparator(comparator,ordered);
}
项目：guava-mock    文件：MultisetForEachEntryTester.java    
public void testForEachEntry() {
  List<Entry<E>> expected = new ArrayList<>(getMultiset().entrySet());
  List<Entry<E>> actual = new ArrayList<>();
  getMultiset()
      .forEachEntry((element,count) -> actual.add(Multisets.immutableEntry(element,count)));
  Helpers.assertEqualIgnoringOrder(expected,actual);
}
项目：guava-mock    文件：OrderingTest.java    
public void testArbitrary_withoutCollisions() {
  List<Object> list = Lists.newArrayList();
  for (int i = 0; i < 50; i++) {
    list.add(new Object());
  }

  Ordering<Object> arbitrary = Ordering.arbitrary();
  Collections.sort(list,list);

  assertEquals("Ordering.arbitrary()",arbitrary.toString());
}
项目：googles-monorepo-demo    文件：MultimapPutTester.java    
@MapFeature.Require(SUPPORTS_PUT)
@CollectionSize.Require(absent = ZERO)
public void testPutPresentKeyPropagatesToAsMapEntrySet() {
  List<K> keys = Helpers.copyToList(multimap().keySet());
  for (K key : keys) {
    resetContainer();

    int size = getNumElements();

    Iterator<Entry<K,Collection<V>>> asMapItr = multimap().asMap().entrySet().iterator();
    Collection<V> collection = null;
    while (asMapItr.hasNext()) {
      Entry<K,Collection<V>> asMapEntry = asMapItr.next();
      if (key.equals(asMapEntry.getKey())) {
        collection = asMapEntry.getValue();
        break;
      }
    }
    assertNotNull(collection);
    Collection<V> expectedCollection = Helpers.copyToList(collection);

    multimap().put(key,multimap().size());
  }
}
项目：googles-monorepo-demo    文件：LongsTest.java    
public void testLexicographicalComparator() {
  List<long[]> ordered = Arrays.asList(
      new long[] {},new long[] {MIN_VALUE},new long[] {MIN_VALUE,MIN_VALUE},(long) 1},new long[] {(long) 1},new long[] {(long) 1,new long[] {MAX_VALUE,MAX_VALUE - (long) 1},MAX_VALUE},MAX_VALUE,MAX_VALUE});

  Comparator<long[]> comparator = Longs.lexicographicalComparator();
  Helpers.testComparator(comparator,ordered);
}
项目：googles-monorepo-demo    文件：LongsTest.java    
public void testToArray_threadSafe() {
  for (int delta : new int[] { +1,-1 }) {
    for (int i = 0; i < VALUES.length; i++) {
      List<Long> list = Longs.asList(VALUES).subList(0,i);
      Collection<Long> misleadingSize =
          Helpers.misleadingSizeCollection(delta);
      misleadingSize.addAll(list);
      long[] arr = Longs.toArray(misleadingSize);
      assertEquals(i,arr.length);
      for (int j = 0; j < i; j++) {
        assertEquals(VALUES[j],arr[j]);
      }
    }
  }
}
项目：guava-mock    文件：ListMultimapTestSuiteBuilder.java    
@Override
protected List<Class<? extends AbstractTester>> getTesters() {
  List<Class<? extends AbstractTester>> testers = Helpers.copyToList(super.getTesters());
  testers.add(ListMultimapAsMapTester.class);
  testers.add(ListMultimapEqualsTester.class);
  testers.add(ListMultimapPutTester.class);
  testers.add(ListMultimapPutAllTester.class);
  testers.add(ListMultimapRemoveTester.class);
  testers.add(ListMultimapReplaceValuesTester.class);
  return testers;
}
项目：guava-mock    文件：TestStringListMultimapGenerator.java    
@Override
public SampleElements<Map.Entry<String,String>> samples() {
  return new SampleElements<Map.Entry<String,String>>(
      Helpers.mapEntry("one","January"),Helpers.mapEntry("two","February"),Helpers.mapEntry("three","march"),Helpers.mapEntry("four","April"),Helpers.mapEntry("five","May"));
}
项目：googles-monorepo-demo    文件：CollectionStreamTester.java    
@CollectionFeature.Require(absent = KNowN_ORDER)
public void testStreamToArrayUnkNownorder() {
  synchronized (collection) { // to allow Collections.synchronized* tests to pass
    Helpers.assertEqualIgnoringOrder(
        getSampleElements(),Arrays.asList(collection.stream().toArray()));
  }
}
项目：googles-monorepo-demo    文件：MultimapPutTester.java    
@CollectionSize.Require(absent = ZERO)
@MapFeature.Require(SUPPORTS_PUT)
public void testPutPresentKeyPropagatesToEntries() {
  Collection<Entry<K,V>> entries = multimap().entries();
  assertFalse(entries.contains(Helpers.mapEntry(k0(),v3())));
  multimap().put(k0(),v3());
  assertContains(entries,v3()));
}
项目：guava-mock    文件：OrderingTest.java    
public void testNullsLast() {
  Ordering<Integer> ordering = Ordering.natural().nullsLast();
  Helpers.testComparator(ordering,1,Integer.MAX_VALUE,null);

  new EqualsTester()
      .addEqualityGroup(ordering,Ordering.natural().nullsLast())
      .addEqualityGroup(numberOrdering.nullsLast())
      .addEqualityGroup(Ordering.natural())
      .testEquals();
}
项目：guava-mock    文件：MultisetIteratorTester.java    
/**
 * Returns {@link Method} instances for the tests that assume multisets support duplicates so that
 * the test of {@code Multisets.forSet()} can suppress them.
 */
@GwtIncompatible // reflection
public static List<Method> getIteratorDuplicateInitializingMethods() {
  return Arrays.asList(
      Helpers.getmethod(MultisetIteratorTester.class,"testIteratorKNownorder"),Helpers.getmethod(MultisetIteratorTester.class,"testIteratorUnkNownorder"),"testRemovingIteratorKNownorder"),"testRemovingIteratorUnkNownorder"));
}
项目：guava-mock    文件：MultisetRemoveTester.java    
@CollectionSize.Require(SEVERAL)
@CollectionFeature.Require(SUPPORTS_REMOVE)
public void testRetainAllIgnoresCount() {
  initThreecopies();
  List<E> contents = Helpers.copyToList(getMultiset());
  assertFalse(getMultiset().retainAll(Collections.singleton(e0())));
  expectContents(contents);
}
项目：googles-monorepo-demo    文件：ImmutableEnumMapTest.java    
public void testImmutableEnumMapOrdering() {
  ImmutableMap<AnEnum,String> map = Maps.immutableEnumMap(
      ImmutableMap.of(AnEnum.C,"c",AnEnum.A,"a",AnEnum.E,"e"));

  assertthat(map.entrySet()).containsExactly(
      Helpers.mapEntry(AnEnum.A,"a"),Helpers.mapEntry(AnEnum.C,"c"),Helpers.mapEntry(AnEnum.E,"e")).inorder();
}
项目：guava-mock    文件：MultimapRemoveEntryTester.java    
@CollectionSize.Require(absent = ZERO)
@MapFeature.Require({SUPPORTS_REMOVE,ALLOWS_NULL_KEYS})
public void testRemoveNullKeyPresent() {
  initMultimapWithNullKey();

  assertTrue(multimap().remove(null,getValueForNullKey()));

  expectMissing(Helpers.mapEntry((K) null,getValueForNullKey()));
  assertGet(getKeyForNullValue(),ImmutableList.<V>of());
}
项目：guava-mock    文件：MultimapRemoveEntryTester.java    
@CollectionSize.Require(absent = ZERO)
@MapFeature.Require({SUPPORTS_REMOVE,ALLOWS_NULL_VALUES})
public void testRemoveNullValuePresent() {
  initMultimapWithNullValue();

  assertTrue(multimap().remove(getKeyForNullValue(),null));

  expectMissing(Helpers.mapEntry(getKeyForNullValue(),(V) null));
  assertGet(getKeyForNullValue(),ImmutableList.<V>of());
}
项目：guava-mock    文件：MultimapKeysTester.java    
@CollectionSize.Require(SEVERAL)
public void testKeys() {
  resetContainer(
      Helpers.mapEntry(k0(),Helpers.mapEntry(k1(),v0()));
  Multiset<K> keys = multimap().keys();
  assertEquals(2,keys.count(k0()));
  assertEquals(1,keys.count(k1()));
  assertEquals(3,keys.size());
  assertContainsAllOf(keys,k0(),k1());
  assertContainsAllOf(
      keys.entrySet(),Multisets.immutableEntry(k0(),2),Multisets.immutableEntry(k1(),1));
}
项目：guava-mock    文件：EnumBiMapTest.java    
@Override
public SampleElements<Entry<Country,Currency>> samples() {
  return new SampleElements<Entry<Country,Currency>>(
      Helpers.mapEntry(Country.CANADA,Currency.DOLLAR),Helpers.mapEntry(Country.CHILE,Currency.PESO),Helpers.mapEntry(Country.UK,Currency.POUND),Helpers.mapEntry(Country.JAPAN,Currency.YEN),Helpers.mapEntry(Country.SWITZERLAND,Currency.FRANC));
}
项目：googles-monorepo-demo    文件：ListMultimapTestSuiteBuilder.java    
@Override
protected List<Class<? extends AbstractTester>> getTesters() {
  List<Class<? extends AbstractTester>> testers = Helpers.copyToList(super.getTesters());
  testers.add(ListMultimapAsMapTester.class);
  testers.add(ListMultimapEqualsTester.class);
  testers.add(ListMultimapPutTester.class);
  testers.add(ListMultimapPutAllTester.class);
  testers.add(ListMultimapRemoveTester.class);
  testers.add(ListMultimapReplaceValuesTester.class);
  return testers;
}
项目：googles-monorepo-demo    文件：CollectionIteratorTester.java    
public void testIterator() {
  List<E> iteratorElements = new ArrayList<E>();
  for (E element : collection) { // uses iterator()
    iteratorElements.add(element);
  }
  Helpers.assertEqualIgnoringOrder(Arrays.asList(createSamplesArray()),iteratorElements);
}
项目：guava-mock    文件：ListMultimapAsMapTester.java    
@CollectionSize.Require(SEVERAL)
@MapFeature.Require(SUPPORTS_REMOVE)
public void testValuesRemove() {
  resetContainer(
      Helpers.mapEntry(k0(),v3()));
  assertTrue(multimap().asMap().values().remove(Collections.singletonList(v0())));
  assertEquals(2,multimap().size());
  assertEquals(
      Collections.singletonMap(k0(),Lists.newArrayList(v0(),v3())),multimap().asMap());
}
项目：googles-monorepo-demo    文件：MapForEachTester.java    
@MapFeature.Require(ALLOWS_NULL_VALUES)
@CollectionSize.Require(absent = ZERO)
public void testForEach_nullValues() {
  initMapWithNullValue();
  List<Entry<K,V>> expectedEntries = Arrays.asList(createArrayWithNullValue());
  List<Entry<K,V>> entries = new ArrayList<>();
  getMap().forEach((k,v) -> entries.add(entry(k,v)));
  Helpers.assertEqualIgnoringOrder(expectedEntries,entries);
}
项目：googles-monorepo-demo    文件：SortedMapNavigationTester.java    
public void testHeadMap() {
  List<Entry<K,V>> entries =
      Helpers.copyToList(
          getSubjectGenerator()
              .getSampleElements(getSubjectGenerator().getCollectionSize().getNumElements()));
  Collections.sort(entries,Helpers.<K,V>entryComparator(navigableMap.comparator()));
  for (int i = 0; i < entries.size(); i++) {
    assertEqualInorder(
        entries.subList(0,i),navigableMap.headMap(entries.get(i).getKey()).entrySet());
  }
}
项目：googles-monorepo-demo    文件：ListSubListTester.java    
@ListFeature.Require(SUPPORTS_SET)
@CollectionSize.Require(absent = {ZERO,ONE})
public void testSubList_subListSetAffectsOriginalLargeList() {
  List<E> subList = getList().subList(1,2);
  subList.set(0,e3());
  List<E> expected = Helpers.copyToList(createSamplesArray());
  expected.set(1,e3());
  expectContents(expected);
}
项目：guava-mock    文件：IntsTest.java    
public void testLexicographicalComparator() {
  List<int[]> ordered = Arrays.asList(
      new int[] {},new int[] {LEAST},new int[] {LEAST,(int) 1},new int[] {(int) 1},new int[] {(int) 1,new int[] {GREATEST,GREATEST - (int) 1},GREATEST});

  Comparator<int[]> comparator = Ints.lexicographicalComparator();
  Helpers.testComparator(comparator,ordered);
}
项目：guava-mock    文件：BiMapPutTester.java    
@SuppressWarnings("unchecked")
@MapFeature.Require(SUPPORTS_PUT)
@CollectionSize.Require(ZERO)
public void testForcePutOverwritesOldValueEntry() {
  getMap().put(k0(),v0());
  getMap().forcePut(k1(),v0());
  // verify that the bimap is unchanged
  expectAdded(Helpers.mapEntry(k1(),v0()));
}
项目：guava-mock    文件：ImmutableListTest.java    
public void testcopyOf_concurrentlyMutating() {
  List<String> sample = Lists.newArrayList("a",1}) {
    for (int i = 0; i < sample.size(); i++) {
      Collection<String> misleading =
          Helpers.misleadingSizeCollection(delta);
      List<String> expected = sample.subList(0,i);
      misleading.addAll(expected);
      assertEquals(expected,ImmutableList.copyOf(misleading));
      assertEquals(expected,ImmutableList.copyOf((Iterable<String>) misleading));
    }
  }
}
项目：googles-monorepo-demo    文件：OrderingTest.java    
public void testCompound_instance() {
  Comparator<String> comparator = byCharat(1).compound(byCharat(0));
  Helpers.testComparator(comparator,ImmutableList.of(
      "red","yellow","violet","blue","indigo","green","orange"));
}
项目：guava-mock    文件：MapEntrySetTester.java    
public void testContainsEntryWithIncomparableKey() {
  try {
    assertFalse(getMap().entrySet().contains(Helpers.mapEntry(IncomparableType.INSTANCE,v0())));
  } catch (ClassCastException acceptable) {
    // allowed by the spec
  }
}
项目：googles-monorepo-demo    文件：MultimapEntriesTester.java    
@CollectionSize.Require(absent = ZERO)
@MapFeature.Require(SUPPORTS_REMOVE)
public void testRemovePropagatesToMultimap() {
  assertTrue(multimap().entries().remove(Helpers.mapEntry(k0(),v0())));
  expectMissing(Helpers.mapEntry(k0(),v0()));
  assertEquals(getNumElements() - 1,multimap().size());
  assertFalse(multimap().containsEntry(k0(),v0()));
}

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