Question

我喜欢为我为一个小型Neo4j项目编写的非托管扩展创建单元测试。

GraphDatabaseService db = new TestGraphDatabaseFactory()
                .newImpermanentDatabaseBuilder()
                .setConfig(GraphDatabaseSettings.pagecache_memory, "512M")
                .setConfig( GraphDatabaseSettings.string_block_size, "60" )
                .setConfig( GraphDatabaseSettings.array_block_size, "300" )
                .newGraphDatabase();

我想在我的@Before测试类中使用类似于上面代码的方法 - 我理解这是编写单元测试的新方法。

我想问：

如何使用配置设置关闭自动身份验证
如何注册我们的扩展程序

我设法通过下面的代码实现我的目标，但是我收到了大量已弃用的警告。

ImpermanentGraphDatabase db = new ImpermanentGraphDatabase();
ServerConfigurator config = new ServerConfigurator(db);
        config.configuration().setProperty("dbms.security.auth_enabled", false);
        config.getThirdpartyJaxRsPackages().add(new ThirdPartyJaxRsPackage("com.mine.graph.neo4j", "/extensions/mine"));
testBootstrapper = new WrappingNeoServerBootstrapper(db, config);
testBootstrapper.start();

Answer 1

我的解决方案是根据Neo4j测试类创建自己的TestServer，以便设置属性并加载UMX

public class Neo4jTestServer  {
private AbstractNeoServer server;
private GraphDatabaseService database;

public Neo4jTestServer() {

    try {
        ServerControls controls = TestServerBuilders.newInProcessBuilder()
                .withExtension("/fd", "org.flockdata.neo4j")
                .withConfig("dbms.security.auth_enabled", "false")
                .newServer();

        initialise(controls);

    } catch (Exception e) {
        throw new RuntimeException("Error starting in-process server",e);
    }

}

private void initialise(ServerControls controls) throws Exception {

    Field field = InProcessServerControls.class.getDeclaredField("server");
    field.setAccessible(true);
    server = (AbstractNeoServer) field.get(controls);
    database = server.getDatabase().getGraph();
}

/**
 * Retrieves the base URL of the Neo4j database server used in the test.
 *
 * @return The URL of the Neo4j test server
 */
public String url() {
    return server.baseUri().toString();
}}

您还需要一个InProcessServer来返回带有UMX的TestServer

public class Neo4jInProcessServer implements Neo4jServer{
private Neo4jTestServer testServer;

public Neo4jInProcessServer()  {
    this.testServer = new Neo4jTestServer();
}

public String url() {
    return testServer.url();
}}

最后，您需要从配置类

返回InProcessServer

    @Override
public Neo4jServer neo4jServer() {

    return new Neo4jInProcessServer();
}

Neo4j非托管扩展单元测试2.2.3版

1 个答案: