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TransposedTableTest.java
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TransposedTableTest.java
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/*
* Copyright (C) 2008 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 org.checkerframework.checker.nullness.qual.Nullable;
/**
* Test cases for {@link Tables#transpose}.
*
* @author Jared Levy
*/
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class TransposedTableTest extends AbstractTableTest<Character> {
@Override
protected Table<String, Integer, Character> create(@Nullable Object... data) {
Table<Integer, String, Character> original = HashBasedTable.create();
Table<String, Integer, Character> table = Tables.transpose(original);
table.clear();
populate(table, data);
return table;
}
public void testTransposeTransposed() {
Table<Integer, String, Character> original = HashBasedTable.create();
assertSame(original, Tables.transpose(Tables.transpose(original)));
}
public void testPutOriginalModifiesTranspose() {
Table<Integer, String, Character> original = HashBasedTable.create();
Table<String, Integer, Character> transpose = Tables.transpose(original);
original.put(1, "foo", 'a');
assertEquals((Character) 'a', transpose.get("foo", 1));
}
public void testPutTransposeModifiesOriginal() {
Table<Integer, String, Character> original = HashBasedTable.create();
Table<String, Integer, Character> transpose = Tables.transpose(original);
transpose.put("foo", 1, 'a');
assertEquals((Character) 'a', original.get(1, "foo"));
}
public void testTransposedViews() {
Table<Integer, String, Character> original = HashBasedTable.create();
Table<String, Integer, Character> transpose = Tables.transpose(original);
original.put(1, "foo", 'a');
assertSame(original.columnKeySet(), transpose.rowKeySet());
assertSame(original.rowKeySet(), transpose.columnKeySet());
assertSame(original.columnMap(), transpose.rowMap());
assertSame(original.rowMap(), transpose.columnMap());
assertSame(original.values(), transpose.values());
assertEquals(original.row(1), transpose.column(1));
assertEquals(original.row(2), transpose.column(2));
assertEquals(original.column("foo"), transpose.row("foo"));
assertEquals(original.column("bar"), transpose.row("bar"));
}
}