entry.invalidate();
                }
                invalidateChildren(child);  // Recursive
            }
        }
    }
}
```

## 8. Testing Strategy

### 8.1 Unit Tests
```java
@Test
public void testDirectoryCacheEntry() {
    DirectoryCacheEntry entry = new DirectoryCacheEntry(
        "/test/dir", new Smb2LeaseKey(), DirectoryCacheScope.IMMEDIATE_CHILDREN);
    

}

private boolean isRdmaAvailable() {
    return new DisniRdmaProvider().isAvailable() || 
           new JxioRdmaProvider().isAvailable();
}
```

## 7. Testing Strategy

### 7.1 Unit Tests
```java
@Test
public void testRdmaProviderSelection() {
    RdmaProvider provider = RdmaProviderFactory.createProvider("auto");
    assertNotNull(provider);
    assertTrue(provider.isAvailable());
}

import java.util.regex.Pattern;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link Predicates}.
 *
 * @author Kevin Bourrillion
 */
@NullMarked
@GwtCompatible
public class PredicatesTest extends TestCase {

import java.util.Comparator;
import java.util.List;
import java.util.regex.Pattern;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link Doubles}.
 *
 * @author Kevin Bourrillion
 */
@NullMarked
@GwtCompatible
public class DoublesTest extends TestCase {
  private static final double[] EMPTY = {};

import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

/**
 * Unit tests for the {@link InferenceStrategy} class.
 * Tests Maven 4.1.0+ inference optimizations including dependency and parent inference.
 */
@DisplayName("InferenceStrategy")
class InferenceStrategyTest {

  private static boolean isTimed(Method method) {
    return isLongTimeUnitBased(method) || isDurationBased(method);
  }

  /** Determines whether the given method takes a time and unit as its last two parameters. */
  private static boolean isLongTimeUnitBased(Method method) {
    Class<?>[] parameterTypes = method.getParameterTypes();
    return parameterTypes.length >= 2

import java.util.List;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link ImmutableList}.
 *
 * @author Kevin Bourrillion
 * @author George van den Driessche
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class ImmutableListTest extends TestCase {

然后，我们可以测试它是否被使用。

## 从 `.env` 文件中读取设置

如果您有许多可能经常更改的设置，可能在不同的环境中，将它们放在一个文件中，然后从该文件中读取它们，就像它们是环境变量一样，可能非常有用。

这种做法相当常见，有一个名称，这些环境变量通常放在一个名为 `.env` 的文件中，该文件被称为“dotenv”。

/// tip

以点 (`.`) 开头的文件是 Unix-like 系统（如 Linux 和 macOS）中的隐藏文件。

但是，dotenv 文件实际上不一定要具有确切的文件名。

///

				"application/isup",
				"application/java-archive",
				"application/vnd.android.package-archive",
				"application/x-tika-java-enterprise-archive",
				"application/x-tika-java-web-archive",
				"application/x-tika-unix-dump",
				"application/java-serialized-object",
				"application/javascript",
				"application/json",
				"application/java-vm",
				"application/x-java-jnilib",
				"application/kpml-request+xml",

				if split := strings.Split(string(b64), "x"); len(split) == 2 {
					t, err := strconv.ParseInt(split[1], 10, 64)
					if err == nil {
						modTime = time.Unix(0, t)
					}
				}
			}
			// Fallback for older uploads without time in the ID.
			if modTime.IsZero() {
				wait := deleteMultipartCleanupSleeper.Timer(ctx)