1 /* 2 * Copyright (C) 2008 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.collect; 18 19 import com.google.common.annotations.GwtCompatible; 20 import com.google.common.annotations.GwtIncompatible; 21 import com.google.common.collect.Table.Cell; 22 import com.google.common.testing.CollectorTester; 23 import com.google.common.testing.EqualsTester; 24 import com.google.common.testing.SerializableTester; 25 import java.util.stream.Collector; 26 import junit.framework.TestCase; 27 28 /** 29 * Tests for {@link Tables}. 30 * 31 * @author Jared Levy 32 */ 33 @GwtCompatible(emulated = true) 34 public class TablesTest extends TestCase { 35 36 // The bulk of the toTable tests can be found in TableCollectorsTest. 37 // This gives minimal coverage to the forwarding functions testToTableSanityTest()38 public void testToTableSanityTest() { 39 Collector<Cell<String, String, Integer>, ?, Table<String, String, Integer>> collector = 40 Tables.toTable(Cell::getRowKey, Cell::getColumnKey, Cell::getValue, HashBasedTable::create); 41 HashBasedTable<String, String, Integer> expected = HashBasedTable.create(); 42 expected.put("one", "uno", 1); 43 CollectorTester.of(collector) 44 .expectCollects(HashBasedTable.create()) 45 .expectCollects(expected, Tables.immutableCell("one", "uno", 1)); 46 } 47 testToTableMergingSanityTest()48 public void testToTableMergingSanityTest() { 49 Collector<Cell<String, String, Integer>, ?, Table<String, String, Integer>> collector = 50 Tables.toTable( 51 Cell::getRowKey, 52 Cell::getColumnKey, 53 Cell::getValue, 54 Integer::sum, 55 HashBasedTable::create); 56 HashBasedTable<String, String, Integer> expected = HashBasedTable.create(); 57 expected.put("one", "uno", 3); 58 CollectorTester.of(collector) 59 .expectCollects(HashBasedTable.create()) 60 .expectCollects( 61 expected, Tables.immutableCell("one", "uno", 1), Tables.immutableCell("one", "uno", 2)); 62 } 63 64 @GwtIncompatible // SerializableTester testImmutableEntrySerialization()65 public void testImmutableEntrySerialization() { 66 Cell<String, Integer, Character> entry = Tables.immutableCell("foo", 1, 'a'); 67 SerializableTester.reserializeAndAssert(entry); 68 } 69 testImmutableEntryToString()70 public void testImmutableEntryToString() { 71 Cell<String, Integer, Character> entry = Tables.immutableCell("foo", 1, 'a'); 72 assertEquals("(foo,1)=a", entry.toString()); 73 74 Cell<String, Integer, Character> nullEntry = Tables.immutableCell(null, null, null); 75 assertEquals("(null,null)=null", nullEntry.toString()); 76 } 77 testEntryEquals()78 public void testEntryEquals() { 79 Cell<String, Integer, Character> entry = Tables.immutableCell("foo", 1, 'a'); 80 81 new EqualsTester() 82 .addEqualityGroup(entry, Tables.immutableCell("foo", 1, 'a')) 83 .addEqualityGroup(Tables.immutableCell("bar", 1, 'a')) 84 .addEqualityGroup(Tables.immutableCell("foo", 2, 'a')) 85 .addEqualityGroup(Tables.immutableCell("foo", 1, 'b')) 86 .addEqualityGroup(Tables.immutableCell(null, null, null)) 87 .testEquals(); 88 } 89 testEntryEqualsNull()90 public void testEntryEqualsNull() { 91 Cell<String, Integer, Character> entry = Tables.immutableCell(null, null, null); 92 93 new EqualsTester() 94 .addEqualityGroup(entry, Tables.immutableCell(null, null, null)) 95 .addEqualityGroup(Tables.immutableCell("bar", null, null)) 96 .addEqualityGroup(Tables.immutableCell(null, 2, null)) 97 .addEqualityGroup(Tables.immutableCell(null, null, 'b')) 98 .addEqualityGroup(Tables.immutableCell("foo", 1, 'a')) 99 .testEquals(); 100 } 101 } 102