}

    @Test
    @DisplayName("Constructor with CIFSContext: creates instance")
    void constructor_withContext_createsInstance() {
        // Arrange
        CIFSContext ctx = mock(CIFSContext.class);

        // Act
        SmbTreeConnectionTrace trace = new SmbTreeConnectionTrace(ctx);

        // Assert
        assertNotNull(trace, "Instance should be created");
    }

    @Test

        assertEquals(123, newParams.get("key2"));

        // Verify that modifications to new instance don't affect original
        newParams.put("key3", "value3");
        assertTrue(newParams.containsKey("key3"));
        assertFalse(dataStoreParams.containsKey("key3"));

        // Verify that modifications to original don't affect new instance
        dataStoreParams.put("key4", "value4");

        ServletException servletException = new ServletException("Test error");
        ServletRuntimeException runtimeException = new ServletRuntimeException(servletException);

        // Verify it's an instance of RuntimeException
        assertTrue(runtimeException instanceof RuntimeException);
        assertTrue(runtimeException instanceof Exception);
        assertTrue(runtimeException instanceof Throwable);
    }

    @Test

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>test</groupId>
    <artifactId>test</artifactId>
    <version>0.1-SNAPSHOT</version>
    <packaging>pom</packaging>

    <properties>

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>test</groupId>
    <artifactId>test</artifactId>
    <version>0.1-SNAPSHOT</version>

    <dependencyManagement>
        <dependencies>

 * preventing log tables from growing too large.
 */
public class PurgeLogJob {

    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(PurgeLogJob.class);

    /**
     * Default constructor for PurgeLogJob.
     * Creates a new instance of the log purging job with default settings.
     */
    public PurgeLogJob() {
        // Default constructor
    }

     */
    public void register() {
        getIngestFactory().add(this);
    }

    /**
     * Gets the ingest factory instance for managing ingesters.
     *
     * @return the ingest factory instance
     */
    protected IngestFactory getIngestFactory() {
        return ComponentUtil.getIngestFactory();
    }

    /**

## Eine Instanz erstellen { #create-an-instance }

Wir könnten eine Instanz dieser Klasse erstellen mit:

{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[18] *}

Und auf diese Weise können wir unsere Abhängigkeit „parametrisieren“, die jetzt `"bar"` enthält, als das Attribut `checker.fixed_content`.

## Die Instanz als Abhängigkeit verwenden { #use-the-instance-as-a-dependency }

 * </ol>
 *
 * <h2>Posting Events</h2>
 *
 * <p>To post an event, simply provide the event object to the {@link #post(Object)} method. The
 * EventBus instance will determine the type of event and route it to all registered listeners.
 *
 * <p>Events are routed based on their type &mdash; an event will be delivered to any subscriber for

但我们希望能够把这个固定内容参数化。

## “可调用”的实例 { #a-callable-instance }

在 Python 中，可以让某个类的实例变成“可调用对象”（callable）。

这里指的是类的实例（类本身已经是可调用的），而不是类本身。

为此，声明一个 `__call__` 方法：

{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[12] *}

在这种情况下，**FastAPI** 会使用这个 `__call__` 来检查附加参数和子依赖，并且稍后会调用它，把返回值传递给你的*路径操作函数*中的参数。

## 参数化实例 { #parameterize-the-instance }

现在，我们可以用 `__init__` 声明实例的参数，用来“参数化”这个依赖项：