/*
* Copyright 2015 Goldman Sachs.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gs.collections.test;
import java.util.Iterator;
import java.util.NoSuchElementException;
import com.gs.collections.api.RichIterable;
import com.gs.collections.api.collection.MutableCollection;
import com.gs.collections.impl.block.factory.Predicates;
import com.gs.collections.impl.block.factory.Predicates2;
import org.junit.Test;
import static com.gs.collections.impl.test.Verify.assertThrows;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.isOneOf;
import static org.hamcrest.Matchers.nullValue;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertThat;
public interface UnorderedIterableTestCase extends RichIterableTestCase
{
@Override
@Test
default void Iterable_next()
{
Iterable<Integer> iterable = this.newWith(3, 3, 3, 2, 2, 1);
MutableCollection<Integer> mutableCollection = this.newMutableForFilter();
Iterator<Integer> iterator = iterable.iterator();
while (iterator.hasNext())
{
Integer integer = iterator.next();
mutableCollection.add(integer);
}
IterableTestCase.assertEquals(this.getExpectedFiltered(3, 3, 3, 2, 2, 1), mutableCollection);
assertFalse(iterator.hasNext());
}
@Override
@Test
default void RichIterable_getFirst()
{
RichIterable<Integer> integers = this.newWith(3, 2, 1);
Integer first = integers.getFirst();
assertThat(first, isOneOf(3, 2, 1));
IterableTestCase.assertEquals(integers.iterator().next(), first);
assertNotEquals(integers.getLast(), first);
}
@Override
@Test
default void RichIterable_getLast()
{
RichIterable<Integer> integers = this.newWith(3, 2, 1);
Integer last = integers.getLast();
assertThat(last, isOneOf(3, 2, 1));
Iterator<Integer> iterator = integers.iterator();
Integer iteratorLast = null;
while (iterator.hasNext())
{
iteratorLast = iterator.next();
}
IterableTestCase.assertEquals(iteratorLast, last);
assertNotEquals(integers.getFirst(), last);
}
@Override
@Test
default void RichIterable_detect()
{
assertThat(this.newWith(3, 2, 1).detect(Predicates.greaterThan(0)), isOneOf(3, 2, 1));
assertThat(this.newWith(3, 2, 1).detect(Predicates.greaterThan(1)), isOneOf(3, 2));
assertThat(this.newWith(3, 2, 1).detect(Predicates.greaterThan(2)), is(3));
assertThat(this.newWith(3, 2, 1).detect(Predicates.greaterThan(3)), nullValue());
assertThat(this.newWith(3, 2, 1).detect(Predicates.lessThan(1)), nullValue());
assertThat(this.newWith(3, 2, 1).detect(Predicates.lessThan(2)), is(1));
assertThat(this.newWith(3, 2, 1).detect(Predicates.lessThan(3)), isOneOf(2, 1));
assertThat(this.newWith(3, 2, 1).detect(Predicates.lessThan(4)), isOneOf(3, 2, 1));
assertThat(this.newWith(3, 2, 1).detectWith(Predicates2.greaterThan(), 0), isOneOf(3, 2, 1));
assertThat(this.newWith(3, 2, 1).detectWith(Predicates2.greaterThan(), 1), isOneOf(3, 2));
assertThat(this.newWith(3, 2, 1).detectWith(Predicates2.greaterThan(), 2), is(3));
assertThat(this.newWith(3, 2, 1).detectWith(Predicates2.greaterThan(), 3), nullValue());
assertThat(this.newWith(3, 2, 1).detectWith(Predicates2.lessThan(), 1), nullValue());
assertThat(this.newWith(3, 2, 1).detectWith(Predicates2.lessThan(), 2), is(1));
assertThat(this.newWith(3, 2, 1).detectWith(Predicates2.lessThan(), 3), isOneOf(2, 1));
assertThat(this.newWith(3, 2, 1).detectWith(Predicates2.lessThan(), 4), isOneOf(3, 2, 1));
assertThat(this.newWith(3, 2, 1).detectIfNone(Predicates.greaterThan(0), () -> 4), isOneOf(3, 2, 1));
assertThat(this.newWith(3, 2, 1).detectIfNone(Predicates.greaterThan(1), () -> 4), isOneOf(3, 2));
assertThat(this.newWith(3, 2, 1).detectIfNone(Predicates.greaterThan(2), () -> 4), is(3));
assertThat(this.newWith(3, 2, 1).detectIfNone(Predicates.greaterThan(3), () -> 4), is(4));
assertThat(this.newWith(3, 2, 1).detectIfNone(Predicates.lessThan(1), () -> 4), is(4));
assertThat(this.newWith(3, 2, 1).detectIfNone(Predicates.lessThan(2), () -> 4), is(1));
assertThat(this.newWith(3, 2, 1).detectIfNone(Predicates.lessThan(3), () -> 4), isOneOf(2, 1));
assertThat(this.newWith(3, 2, 1).detectIfNone(Predicates.lessThan(4), () -> 4), isOneOf(3, 2, 1));
assertThat(this.newWith(3, 2, 1).detectWithIfNone(Predicates2.greaterThan(), 0, () -> 4), isOneOf(3, 2, 1));
assertThat(this.newWith(3, 2, 1).detectWithIfNone(Predicates2.greaterThan(), 1, () -> 4), isOneOf(3, 2));
assertThat(this.newWith(3, 2, 1).detectWithIfNone(Predicates2.greaterThan(), 2, () -> 4), is(3));
assertThat(this.newWith(3, 2, 1).detectWithIfNone(Predicates2.greaterThan(), 3, () -> 4), is(4));
assertThat(this.newWith(3, 2, 1).detectWithIfNone(Predicates2.lessThan(), 1, () -> 4), is(4));
assertThat(this.newWith(3, 2, 1).detectWithIfNone(Predicates2.lessThan(), 2, () -> 4), is(1));
assertThat(this.newWith(3, 2, 1).detectWithIfNone(Predicates2.lessThan(), 3, () -> 4), isOneOf(2, 1));
assertThat(this.newWith(3, 2, 1).detectWithIfNone(Predicates2.lessThan(), 4, () -> 4), isOneOf(3, 2, 1));
}
@Override
@Test
default void RichIterable_minBy_maxBy()
{
// Without an ordering, min can be either ca or da
RichIterable<String> minIterable = this.newWith("ed", "da", "ca", "bc", "ab");
String actualMin = minIterable.minBy(string -> string.charAt(string.length() - 1));
assertThat(actualMin, isOneOf("ca", "da"));
IterableTestCase.assertEquals(minIterable.detect(each -> each.equals("ca") || each.equals("da")), actualMin);
assertThrows(NoSuchElementException.class, () -> this.<String>newWith().minBy(string -> string.charAt(string.length() - 1)));
// Without an ordering, max can be either ca or da
RichIterable<String> maxIterable = this.newWith("ew", "dz", "cz", "bx", "ay");
String actualMax = maxIterable.maxBy(string -> string.charAt(string.length() - 1));
assertThat(actualMax, isOneOf("cz", "dz"));
IterableTestCase.assertEquals(maxIterable.detect(each -> each.equals("cz") || each.equals("dz")), actualMax);
assertThrows(NoSuchElementException.class, () -> this.<String>newWith().maxBy(string -> string.charAt(string.length() - 1)));
}
}