/*
    * 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;
  
  /**
   * Test cases for {@link Tables#transpose}.
   * 
   * @author Jared Levy
   */
  @GwtCompatible
  public class TransposedTableTest extends AbstractTableTest {
  
    @Override protected Table<String, Integer, Character> create(
        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"));
    }
  }