[英]How to share an ExternalResource between two test classes?
我正在努力了解使用ExternalResource
的好處。 文檔和其他帖子( Junit @Rule如何工作? )都提到能夠在類中的測試之間共享代碼和/或在測試類之間共享代碼。
我試圖在功能/集成測試中使用ExternalResource
進行數據庫連接,但我不知道如何跨類共享該連接。 事實上,在這種情況下,我並沒有真正看到@Before/@After
的好處。 我錯誤地使用了這個或者我錯過了什么?
public class some_IntegrationTest {
private static String id;
Connection connection = null;
//...
@Rule
public ExternalResource DBConnectionResource = new ExternalResource() {
@Override
protected void before() throws SQLException {
connection = DbUtil.openConnection();
}
@Override
protected void after() {
DbUtil.closeConnection(connection);
}
};
@BeforeClass
public static void setUpClass() throws SQLException {
System.out.println("@BeforeClass setUpClass");
cleanup(id);
}
//I want to do something like this
@Test
public void test01() {
cleanupData(connection, id);
// do stuff...
}
@Test
public void test02() {
cleanupTnxLog(connection, id);
// do stuff...
}
//...
private static void cleanup(String id) throws SQLException {
LOGGER.info("Cleaning up records");
Connection connection = null;
try {
connection = DbUtil.openConnection();
cleanupData(connection, id);
cleanupTnxLog(connection, id);
} finally {
DbUtil.closeConnection(connection);
}
}
private static void cleanupData(Connection connection, String id)
throws SQLException {
dao1.delete(connection, id);
}
private static void cleanupTnxLog(Connection connection, String id)
throws SQLException {
dao2.delete(connection, id);
}
}
我會做那樣的事情:
public class DbConnectionRessource extends ExternalRessource {
private Connection connection;
@Override
protected void before() throws SQLException {
connection = DbUtil.openConnection();
}
@Override
protected void after() {
DbUtil.closeConnection(connection);
}
public Connection getConnection() {
return connection;
}
}
然后在你的測試中使用它,如下所示:
public class SomeIntegrationTest {
@Rule
public DbConnectionRessource dbConnectionResource = new DbConnectionRessource();
// ...
@Test
public void test01() {
cleanupData(dbConnectionResource.getConnection(), id);
// do stuff...
}
// ...
}
[未經測試]
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