类型不匹配：尝试将驱动程序设置为ITestContext时无法从void转换为ITestContext

Question

所以我有以下代码，它按预期工作，我只是不明白为什么我需要使用setContext方法将驱动程序设置为上下文，而当我搜索设置时，答案可能对其他人有帮助驱动程序进入上下文，什么也找不到。

我将驱动程序添加到上下文中，以便稍后可以在测试失败侦听器上使用它以获取范围报告3中的屏幕截图。

任何解释都会有所帮助。

private static ITestContext context;

/**
 * @param context
 */
@BeforeClass
public void setUp(ITestContext context) {

    setChromeDriverProperty();
    if (driver == null) {
        TestBase.driver = new ChromeDriver();
    }
    if (driver != null) {
        TestBase.wait = new WebDriverWait(driver, 20);
    }
    if (driver != null) {
        TestBase.fluentWait = new FluentWait<WebDriver>(driver).withTimeout(Duration.ofSeconds(1))
                .pollingEvery(Duration.ofMillis(500)).ignoring(NoSuchElementException.class)
                .ignoring(StaleElementReferenceException.class);
    }

    **//So if I use the method below(setContext) everything works as expected** 
    TestBase.context = setContext(context, driver);

    **//But if I want to set the driver into the context like below(I get Type 
    mismatch: cannot convert from void to ITestContext)**
    Can anyone explain why is this the case and how does the below method 
    solve that? I tried to set the setUp method as ITestContext instead of void but that didn't help.**

    TestBase.context = context.setAttribute("driver", driver);

    TestBase.driver.manage().window().maximize();
    Reporter.log("====================Application Started====================", true);

}

public static ITestContext setContext(ITestContext context, WebDriver driver) {
    context.setAttribute("driver", driver);

    return context;
}