current implementation may sometimes cause a runtime error if the
contents of the C memory appear to be a Go pointer. Therefore, avoid
passing uninitialized C memory to Go code if the Go code is going to
store pointer values in it. Zero out the memory in C before passing it
to Go.

# Optimizing calls of C code

When passing a Go pointer to a C function the compiler normally ensures
that the Go object lives on the heap. If the C function does not keep

A typical sequence might be:

    cd src  # or src/cmd
    go get golang.org/x/net@master
    go mod tidy
    go mod vendor
    go test cmd/internal/moddeps

Use caution when passing '-u' to 'go get'. The '-u' flag updates
modules providing all transitively imported packages, not only
the module providing the target package.

Note that 'go mod vendor' only copies packages that are transitively

    @Mock
    Handler handler;

    @Test
    @DisplayName("Interaction: handler called with each code/message pair")
    void interaction_with_mock_handler_is_as_expected() {
        // Interaction test: simulate passing each code/message to a collaborator
        for (int i = 0; i < WinError.WINERR_CODES.length; i++) {
            handler.handle(WinError.WINERR_CODES[i], WinError.WINERR_MESSAGES[i]);
        }

        // Getting instance again should return the same as instance2
        assertSame(instance2, LogStream.getInstance());
    }

    @Test
    void testNullStreamHandling() {
        // Test that passing null to setInstance throws NullPointerException
        // This is expected behavior as PrintStream doesn't accept null
        assertThrows(NullPointerException.class, () -> {
            LogStream.setInstance(null);

| *Required*    | *No*                                               |

### Policy

        <artifactId>animal-sniffer-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-javadoc-plugin</artifactId>
        <configuration>
          <!-- Passing `-subpackages com.google.common` breaks things, so we explicitly exclude everything else instead. -->
          <!-- excludePackageNames requires specification of packages separately from "all subpackages".

| *Required*    | *No*                                               |

### Policy

Make sure you create a [virtual environment](../virtual-environments.md), activate it, and then install it, for example:

```console
$ pip install httpx
```

///

Import `TestClient`.

Create a `TestClient` by passing your **FastAPI** application to it.

Create functions with a name that starts with `test_` (this is standard `pytest` conventions).

Use the `TestClient` object the same way as you do with `httpx`.

        <artifactId>animal-sniffer-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <artifactId>maven-javadoc-plugin</artifactId>
        <configuration>
          <!-- Passing `-subpackages com.google.common` breaks things, so we explicitly exclude everything else instead. -->
          <!-- excludePackageNames requires specification of packages separately from "all subpackages".

/**
 * Job for executing Python scripts within the Fess search engine environment.
 * This job extends ExecJob to provide Python-specific functionality for running
 * Python scripts with proper environment setup and argument passing.
 *
 * <p>Python scripts are executed in the WEB-INF/env/python/resources directory
 * and have access to the Fess system environment including OpenSearch URL and session ID.</p>
 */
public class PythonJob extends ExecJob {