1 package uba.db.sql.language;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 import junit.framework.TestCase;
7 import uba.db.testhelpers.TestUtils;
8
9 /***
10 * @version $Revision: 1.4 $
11 */
12 public class DisplayAllColumnsTest extends TestCase {
13 /***
14 * Test de igualdad entre dos instancias.
15 */
16 public void testEquals() {
17 TestUtils.assertEqualsImplementation(new DisplayAllColumns(),
18 new DisplayAllColumns(),
19 "other");
20 }
21
22 /***
23 * Test: agregar a un comodin de todas las columnas.
24 */
25 public void testAppendToAllColumns() {
26 DisplayColumns result = new DisplayAllColumns().append(new DisplayAllColumns());
27 List columns = new ArrayList();
28 columns.add(new DisplayAllColumns());
29 columns.add(new DisplayAllColumns());
30
31 assertEquals(new DisplayMultipleColumns(columns), result);
32 }
33
34 /***
35 * Test: agregar a una columna.
36 */
37 public void testAppendToOneColumn() {
38 DisplayOneColumn displayOneColumn = new DisplayOneColumn(new ColumnName("c"));
39 DisplayColumns result = displayOneColumn.append(new DisplayAllColumns());
40 List columns = new ArrayList();
41 columns.add(displayOneColumn);
42 columns.add(new DisplayAllColumns());
43
44 assertEquals(new DisplayMultipleColumns(columns), result);
45 }
46
47 /***
48 * Test: agregar a multiples columnas.
49 */
50 public void testAppendToMultipleColumns() {
51 DisplayOneColumn displayColumnC = new DisplayOneColumn(new ColumnName("c"));
52 DisplayOneColumn displayColumnD = new DisplayOneColumn(new ColumnName("d"));
53
54 DisplayMultipleColumns multipleColumns = new DisplayMultipleColumns(
55 displayColumnC, displayColumnD);
56 DisplayColumns result = multipleColumns.append(new DisplayAllColumns());
57 List columns = new ArrayList();
58 columns.add(displayColumnC);
59 columns.add(displayColumnD);
60 columns.add(new DisplayAllColumns());
61
62 assertEquals(new DisplayMultipleColumns(columns), result);
63 }
64 }