/*
* Copyright (C) 2009 The Guava Authors
*
* 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.google.common.collect;
import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.testing.EqualsTester;
/**
* Tests {@link EmptyImmutableTable}
*
* @author Gregory Kick
*/
@GwtCompatible(emulated = true)
public class EmptyImmutableTableTest extends AbstractImmutableTableTest {
private static final ImmutableTable<Character, Integer, String> INSTANCE = ImmutableTable.of();
@Override Iterable<ImmutableTable<Character, Integer, String>> getTestInstances() {
return ImmutableSet.of(INSTANCE);
}
public void testHashCode() {
assertEquals(0, INSTANCE.hashCode());
}
public void testEqualsObject() {
Table<Character, Integer, String> nonEmptyTable = HashBasedTable.create();
nonEmptyTable.put('A', 1, "blah");
new EqualsTester()
.addEqualityGroup(INSTANCE, HashBasedTable.create(), TreeBasedTable.create())
.addEqualityGroup(nonEmptyTable)
.testEquals();
}
@GwtIncompatible("ArrayTable")
public void testEqualsObjectNullValues() {
new EqualsTester()
.addEqualityGroup(INSTANCE)
.addEqualityGroup(ArrayTable.create(ImmutableSet.of('A'), ImmutableSet.of(1)))
.testEquals();
}
public void testToString() {
assertEquals("{}", INSTANCE.toString());
}
public void testSize() {
assertEquals(0, INSTANCE.size());
}
public void testGet() {
assertNull(INSTANCE.get('a', 1));
}
public void testIsEmpty() {
assertTrue(INSTANCE.isEmpty());
}
public void testCellSet() {
assertEquals(ImmutableSet.of(), INSTANCE.cellSet());
}
public void testColumn() {
assertEquals(ImmutableMap.of(), INSTANCE.column(1));
}
public void testColumnKeySet() {
assertEquals(ImmutableSet.of(), INSTANCE.columnKeySet());
}
public void testColumnMap() {
assertEquals(ImmutableMap.of(), INSTANCE.columnMap());
}
public void testContains() {
assertFalse(INSTANCE.contains('a', 1));
}
public void testContainsColumn() {
assertFalse(INSTANCE.containsColumn(1));
}
public void testContainsRow() {
assertFalse(INSTANCE.containsRow('a'));
}
public void testContainsValue() {
assertFalse(INSTANCE.containsValue("blah"));
}
public void testRow() {
assertEquals(ImmutableMap.of(), INSTANCE.row('a'));
}
public void testRowKeySet() {
assertEquals(ImmutableSet.of(), INSTANCE.rowKeySet());
}
public void testRowMap() {
assertEquals(ImmutableMap.of(), INSTANCE.rowMap());
}
public void testValues() {
assertTrue(INSTANCE.values().isEmpty());
}
}