@Test
public void testFunctionalMultiValueAttribute() {
MultiValueAttribute<Car, String> CAR_ID = attribute(String.class, featuresFunction);
assertEquals(Car.class, CAR_ID.getObjectType());
assertEquals(String.class, CAR_ID.getAttributeType());
assertTrue(CAR_ID.getAttributeName().startsWith(this.getClass().getName() + "$"));
}
@Test
public void testFunctionalSimpleNullableAttribute() {
SimpleNullableAttribute<Car, Integer> CAR_ID = nullableAttribute(carIdFunction);
assertEquals(Car.class, CAR_ID.getObjectType());
assertEquals(Integer.class, CAR_ID.getAttributeType());
assertTrue(CAR_ID.getAttributeName().startsWith(this.getClass().getName() + "$"));
}
@Test
public void getDistinctKeysAndCounts_SortByKeyDescending() {
Connection connection = null;
ResultSet resultSet = null;
try {
ConnectionManager connectionManager = temporaryFileDatabase.getConnectionManager(true);
initWithTestData(connectionManager);
connection = connectionManager.getConnection(null);
resultSet = DBQueries.getDistinctKeysAndCounts(true, NAME, connection);
Map<String, Integer> resultSetToMap = resultSetToMap(resultSet);
assertEquals(3, resultSetToMap.size());
Iterator<Map.Entry<String, Integer>> entriesIterator = resultSetToMap.entrySet().iterator();
Map.Entry entry = entriesIterator.next();
assertEquals("gps", entry.getKey());
assertEquals(1, entry.getValue());
entry = entriesIterator.next();
assertEquals("airbags", entry.getKey());
assertEquals(1, entry.getValue());
entry = entriesIterator.next();
assertEquals("abs", entry.getKey());
assertEquals(2, entry.getValue());
} finally {
DBUtils.closeQuietly(resultSet);
DBUtils.closeQuietly(connection);
}
}
@Test
public void testEnsureNotNegative_InvalidCase() {
IllegalStateException expected = null;
try {
DBQueries.ensureNotNegative(-1);
} catch (IllegalStateException e) {
expected = e;
}
assertNotNull(expected);
assertEquals("Update returned error code: -1", expected.getMessage());
}
void initWithTestData(final ConnectionManager connectionManager) {
createSchema(connectionManager);
Connection connection = null;
Statement statement = null;
try {
connection = connectionManager.getConnection(null);
statement = connection.createStatement();
assertEquals(statement.executeUpdate("INSERT INTO " + TABLE_NAME + " values (1, 'abs')"), 1);
assertEquals(statement.executeUpdate("INSERT INTO " + TABLE_NAME + " values (1, 'gps')"), 1);
assertEquals(
statement.executeUpdate("INSERT INTO " + TABLE_NAME + " values (2, 'airbags')"), 1);
assertEquals(statement.executeUpdate("INSERT INTO " + TABLE_NAME + " values (3, 'abs')"), 1);
} catch (Exception e) {
throw new IllegalStateException("Unable to initialize test database", e);
} finally {
DBUtils.closeQuietly(connection);
DBUtils.closeQuietly(statement);
}
}
void createSchema(final ConnectionManager connectionManager) {
Connection connection = null;
Statement statement = null;
try {
connection = connectionManager.getConnection(null);
statement = connection.createStatement();
assertEquals(
statement.executeUpdate(
"CREATE TABLE IF NOT EXISTS " + TABLE_NAME + " (objectKey INTEGER, value TEXT)"),
0);
assertEquals(
statement.executeUpdate(
"CREATE INDEX IF NOT EXISTS " + INDEX_NAME + " ON " + TABLE_NAME + "(value)"),
0);
} catch (Exception e) {
throw new IllegalStateException("Unable to create test database schema", e);
} finally {
DBUtils.closeQuietly(connection);
DBUtils.closeQuietly(statement);
}
}
@Test
public void getDistinctKeysAndCounts() {
Connection connection = null;
ResultSet resultSet = null;
try {
ConnectionManager connectionManager = temporaryFileDatabase.getConnectionManager(true);
initWithTestData(connectionManager);
connection = connectionManager.getConnection(null);
resultSet = DBQueries.getDistinctKeysAndCounts(false, NAME, connection);
Map<String, Integer> resultSetToMap = resultSetToMap(resultSet);
assertEquals(3, resultSetToMap.size());
assertEquals(new Integer(2), resultSetToMap.get("abs"));
assertEquals(new Integer(1), resultSetToMap.get("airbags"));
assertEquals(new Integer(1), resultSetToMap.get("gps"));
} finally {
DBUtils.closeQuietly(resultSet);
DBUtils.closeQuietly(connection);
}
}
@Test
public void getCountOfDistinctKeys() {
Connection connection = null;
try {
ConnectionManager connectionManager = temporaryFileDatabase.getConnectionManager(true);
initWithTestData(connectionManager);
connection = connectionManager.getConnection(null);
int countOfDistinctKeys = DBQueries.getCountOfDistinctKeys(NAME, connection);
assertEquals(3, countOfDistinctKeys);
} finally {
DBUtils.closeQuietly(connection);
}
}