result.eventSpyDispatcher = shellContext.eventSpyDispatcher;
            };
        }

        @Override
        public void close() throws Exception {
            shellMavenInvoker.close();
            shellEncryptInvoker.close();
            shellUpgradeInvoker.close();
        }

        @Override
        public List<String> commandInfo(String command) {
            return List.of();
        }

虽然上面的截图取自 <a href="https://code.visualstudio.com" class="external-link" target="_blank">Visual Studio Code</a>。

但 <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a> 和大多数 Python 编辑器也支持同样的功能：

<img src="/img/tutorial/body/image05.png">

/// tip | 提示

import org.junit.jupiter.api.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

/**
 * Unit tests for the {@link TransTransactNamedPipeResponse} class.
 */
class TransTransactNamedPipeResponseTest {

    @Mock
    private SmbNamedPipe mockPipe;

    @Mock
    private TransactNamedPipeInputStream mockPipeIn;

    @InjectMocks

 * at runtime. When a MIME type is not found in the mapping, a default value
 * is returned.
 */
public class FileTypeHelper {
    /** Logger instance for this class */
    private static final Logger logger = LogManager.getLogger(FileTypeHelper.class);

    /** Default file type value returned when MIME type is not found in mappings */
    protected String defaultValue = "others";

import jakarta.annotation.PostConstruct;

/**
 * Helper class for managing related query configurations.
 * This class provides functionality to load, cache, and retrieve related queries
 * based on search terms and virtual hosts. Related queries are used to suggest
 * alternative or supplementary search terms to improve search results.
 */
public class RelatedQueryHelper extends AbstractConfigHelper {

import groovy.lang.GroovySystem;
import org.apache.commons.lang3.StringUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

import java.util.HashSet;
import java.util.Set;

public class LinkRenderer {
    private final Document document;
    private final DslDocModel model;
    private final Set<String> primitiveTypes = new HashSet<String>();
    private final String groovyVersion;

from typing import Annotated, Union

from fastapi import Body, FastAPI
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: Union[float, None] = None


class User(BaseModel):
    username: str
    full_name: Union[str, None] = None


@app.put("/items/{item_id}")
async def update_item(
    *,
    item_id: int,

* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Proto" class="external-link" target="_blank">X-Forwarded-Proto</a>
* <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-Host" class="external-link" target="_blank">X-Forwarded-Host</a>

///

		onConflict.Columns = make([]clause.Column, 0, len(s.PrimaryFieldDBNames))
		for _, dbName := range s.PrimaryFieldDBNames {
			onConflict.Columns = append(onConflict.Columns, clause.Column{Name: dbName})
		}

		onConflict.UpdateAll = stmt.DB.FullSaveAssociations
		if !onConflict.UpdateAll {
			onConflict.DoUpdates = clause.AssignmentColumns(defaultUpdatingColumns)
		}
	} else {
		onConflict.DoNothing = true

# 测试

感谢 <a href="https://www.starlette.dev/testclient/" class="external-link" target="_blank">Starlette</a>，测试**FastAPI** 应用轻松又愉快。

它基于 <a href="https://www.python-httpx.org" class="external-link" target="_blank">HTTPX</a>， 而HTTPX又是基于Requests设计的，所以很相似且易懂。

有了它，你可以直接与**FastAPI**一起使用 <a href="https://docs.pytest.org/" class="external-link" target="_blank">pytest</a>。

## 使用 `TestClient`

/// info | 信息