123 lines
3.2 KiB
Java
123 lines
3.2 KiB
Java
/*
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* Copyright (C) 2009 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.common.collect;
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import com.google.common.annotations.GwtCompatible;
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import com.google.common.annotations.GwtIncompatible;
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import com.google.common.testing.EqualsTester;
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/**
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* Tests {@link EmptyImmutableTable}
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*
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* @author Gregory Kick
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*/
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@GwtCompatible(emulated = true)
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public class EmptyImmutableTableTest extends AbstractImmutableTableTest {
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private static final ImmutableTable<Character, Integer, String> INSTANCE = ImmutableTable.of();
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@Override
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Iterable<ImmutableTable<Character, Integer, String>> getTestInstances() {
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return ImmutableSet.of(INSTANCE);
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}
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public void testHashCode() {
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assertEquals(0, INSTANCE.hashCode());
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}
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public void testEqualsObject() {
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Table<Character, Integer, String> nonEmptyTable = HashBasedTable.create();
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nonEmptyTable.put('A', 1, "blah");
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new EqualsTester()
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.addEqualityGroup(INSTANCE, HashBasedTable.create(), TreeBasedTable.create())
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.addEqualityGroup(nonEmptyTable)
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.testEquals();
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}
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@GwtIncompatible // ArrayTable
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public void testEqualsObjectNullValues() {
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new EqualsTester()
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.addEqualityGroup(INSTANCE)
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.addEqualityGroup(ArrayTable.create(ImmutableSet.of('A'), ImmutableSet.of(1)))
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.testEquals();
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}
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public void testToString() {
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assertEquals("{}", INSTANCE.toString());
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}
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public void testSize() {
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assertEquals(0, INSTANCE.size());
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}
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public void testGet() {
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assertNull(INSTANCE.get('a', 1));
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}
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public void testIsEmpty() {
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assertTrue(INSTANCE.isEmpty());
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}
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public void testCellSet() {
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assertEquals(ImmutableSet.of(), INSTANCE.cellSet());
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}
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public void testColumn() {
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assertEquals(ImmutableMap.of(), INSTANCE.column(1));
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}
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public void testColumnKeySet() {
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assertEquals(ImmutableSet.of(), INSTANCE.columnKeySet());
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}
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public void testColumnMap() {
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assertEquals(ImmutableMap.of(), INSTANCE.columnMap());
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}
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public void testContains() {
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assertFalse(INSTANCE.contains('a', 1));
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}
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public void testContainsColumn() {
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assertFalse(INSTANCE.containsColumn(1));
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}
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public void testContainsRow() {
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assertFalse(INSTANCE.containsRow('a'));
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}
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public void testContainsValue() {
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assertFalse(INSTANCE.containsValue("blah"));
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}
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public void testRow() {
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assertEquals(ImmutableMap.of(), INSTANCE.row('a'));
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}
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public void testRowKeySet() {
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assertEquals(ImmutableSet.of(), INSTANCE.rowKeySet());
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}
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public void testRowMap() {
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assertEquals(ImmutableMap.of(), INSTANCE.rowMap());
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}
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public void testValues() {
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assertTrue(INSTANCE.values().isEmpty());
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}
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}
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