dbunit test échoue avec NoSuchTableException, mais la table n'existe

Erreur

java org.junit.runner.JUnitCore TestCase
JUnit version 4.10
.E..
Time: 0.28
There was 1 failure:
1) testDbNoChanges(TestCase)
org.dbunit.dataset.NoSuchTableException: Did not find table 'EVENTS' in schema 'null'

Question

Que fait cette erreur signifie? Ce que je fais mal? Pourquoi le schéma null?

Le deuxième critère, qui fait des tests de table, passe. Ce test, qui est censé pour tester la qualité de la base de données échoue. Les tableaux existent avant et après.

mysql> show tables;
+---------------+
| Tables_in_cal |
+---------------+
| events        |
| guests        |
| test          |
+---------------+
3 rows in set (0.00 sec)

Source

C'est, je crois utile d'extrait, mais tout est à https://bitbucket.org/djeikyb/simple_dbunit

 36 public class TestCase
37 {
38 
39   private IDatabaseTester database_tester;
40 
41 
42   public IDataSet getDataSet() throws FileNotFoundException, DataSetException
43   {
44     return new FlatXmlDataSetBuilder().build(
45         /*
46         new FileInputStream("src/simple_dbunit/expected_dataset.xml"));
47         new FileInputStream("dataset.xml"));
48          */
49         new FileInputStream("dataset.xml"));
50   }
51 
52 
53   @Before
54   public void setUp() throws Exception
55   {
56     database_tester = new JdbcDatabaseTester("com.mysql.jdbc.Driver",
57                                             "jdbc:mysql://localhost/cal",
58                                             "cal",
59                                             "cal");
60     database_tester.setDataSet(getDataSet());
61     database_tester.onSetup();
62   }
63 
64   @Test
65   public void testDbNoChanges() throws Exception
66   {
67     //expected
68     IDataSet expected_data_set = getDataSet();
69 
70     //actual
71     IDatabaseConnection connection = database_tester.getConnection();
72     IDataSet actual_data_set = connection.createDataSet();
73 
74     //test
75     Assertion.assertEquals(expected_data_set, actual_data_set);
76   }
77 
78   @Test
79   public void testTableNoChanges() throws Exception
80   {
81     //expected
82     ITable expected_table = getDataSet().getTable("test");
83 
84     //actual
85     IDatabaseConnection connection = database_tester.getConnection();
86     IDataSet actual_data_set = connection.createDataSet();
87     ITable actual_table = actual_data_set.getTable("test");
88 
89     //test
90     Assertion.assertEquals(expected_table, actual_table);
91   }
92 
93   @Test
94   public void testTableNoChanges1() throws Exception
95   {
96     //expected
97     ITable expected_table = getDataSet().getTable("test");
98 
99     //actual
100     IDatabaseConnection connection = database_tester.getConnection();
101     IDataSet actual_data_set = connection.createDataSet();
102     ITable actual_table = actual_data_set.getTable("test");
103 
104     //test
105     Assertion.assertEquals(expected_table, actual_table);
106   }
107 
108 }