strongduanmu opened a new issue #10920:
URL: https://github.com/apache/shardingsphere/issues/10920
Hi community,
This issue is for #10887.
# Background
Currently `FederateStatementTest` and `FederatePrepareStatementTest` use
JUNIT to test SQL statements. In order to improve test coverage and code
elegance, we need to migrate the test scenarios of FederateStatementTest and
FederatePrepareStatementTest to `shardingsphere-integration-test`.
# Target
The goal of this issue is to migrate the
`SELECT_SQL_BY_ID_ACROSS_TWO_SHARDING_TABLES` statement to the
`shardingsphere-integration-test` module.
You can search for the `SELECT_SQL_BY_ID_ACROSS_TWO_SHARDING_TABLES`
keyword, and then you will find the test cases in `FederateStatementTest` and
`FederatePrepareStatementTest`.
FederateStatementTest:
```java
private static final String SELECT_SQL_BY_ID_ACROSS_TWO_SHARDING_TABLES =
"select o.order_id_sharding, i.order_id from
t_order_federate_sharding o, t_order_item_federate_sharding i "
+ "where o.order_id_sharding = i.item_id";
@Test
public void
assertQueryWithFederateBetweenTwoShardingTablesByExecuteQuery() throws
SQLException {
assertQueryWithFederateBetweenTwoShardingTables(true);
}
@Test
public void assertQueryWithFederateBetweenTwoShardingTablesByExecute()
throws SQLException {
assertQueryWithFederateBetweenTwoShardingTables(false);
}
private void assertQueryWithFederateBetweenTwoShardingTables(final
boolean executeQuery) throws SQLException {
ShardingSphereStatement statement = (ShardingSphereStatement)
getShardingSphereDataSource().getConnection().createStatement();
ResultSet resultSet = getResultSet(statement,
SELECT_SQL_BY_ID_ACROSS_TWO_SHARDING_TABLES, executeQuery);
assertNotNull(resultSet);
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(1010));
assertThat(resultSet.getInt(2), is(10001));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(1011));
assertThat(resultSet.getInt(2), is(10001));
assertFalse(resultSet.next());
}
```
FederatePrepareStatementTest:
```java
private static final String SELECT_SQL_BY_ID_ACROSS_TWO_SHARDING_TABLES =
"select o.order_id_sharding, i.order_id from
t_order_federate_sharding o, t_order_item_federate_sharding i "
+ "where o.order_id_sharding = i.item_id and i.order_id
> ?";
@Test
public void
assertQueryWithFederateBetweenTwoShardingTablesByExecuteQuery() throws
SQLException {
assertQueryWithFederateBetweenTwoShardingTables(true);
}
@Test
public void assertQueryWithFederateBetweenTwoShardingTablesByExecute()
throws SQLException {
assertQueryWithFederateBetweenTwoShardingTables(false);
}
private void assertQueryWithFederateBetweenTwoShardingTables(final
boolean executeQuery) throws SQLException {
ShardingSpherePreparedStatement preparedStatement =
(ShardingSpherePreparedStatement) getShardingSphereDataSource()
.getConnection().prepareStatement(SELECT_SQL_BY_ID_ACROSS_TWO_SHARDING_TABLES);
preparedStatement.setInt(1, 10000);
ResultSet resultSet = getResultSet(preparedStatement, executeQuery);
assertNotNull(resultSet);
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(1010));
assertThat(resultSet.getInt(2), is(10001));
assertTrue(resultSet.next());
assertThat(resultSet.getInt(1), is(1011));
assertThat(resultSet.getInt(2), is(10001));
assertFalse(resultSet.next());
}
```
# How to
In order to finish this task, you need to understand the
[documentation](https://shardingsphere.apache.org/document/current/en/features/test-engine/integration-test/)
of the integration test first, and PR #10913 also provides an example, which
you can refer to. BTW, if you have any questions, please leave a comment.
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