如何使用 Espresso 检测 android 应用程序是否正在运行 UI 测试

问题描述

我正在为 Android 编写一些 Espresso 测试.我遇到了以下问题:

I am writing some Espresso tests for Android. I am running in the the following problem:

为了使某个测试用例正常运行，我需要禁用应用程序中的某些功能.因此，在我的应用程序中，我需要检测我是否正在运行 Espresso 测试，以便我可以禁用它.但是，我不想使用 BuildConfig.DEBUG ，因为我不希望在调试版本中禁用这些功能.另外，我想避免创建新的 buildConfig 以避免创建太多的构建变体(我们已经定义了很多风格).

In order for a certain test case to run properly, I need to disable some features in the app. Therefore, in my app, I need to detect whether I am running Espresso test so that I can disable it. However, I don't want to use BuildConfig.DEBUG to because I don't want those features to be disabled in a debug build. Also, I would like to avoid creating a new buildConfig to avoid too many build variants to be created (we already have a lot of flavors defined).

我正在寻找一种方法来定义用于测试的 buildConfigField，但我在 Google 上找不到任何参考.

I was looking for a way to define buildConfigField for test but I couldn't find any reference on Google.

推荐答案

结合 CommonsWare 的评论.这是我的解决方案:

Combined with CommonsWare's comment. Here is my solution:

我定义了一个 AtomicBoolean 变量和一个函数来检查它是否正在运行测试:

I defined an AtomicBoolean variable and a function to check whether it's running test:

private AtomicBoolean isRunningTest;

public synchronized boolean isRunningTest () {
    if (null == isRunningTest) {
        boolean istest;

        try {
            Class.forName ("myApp.package.name.test.class.name");
            istest = true;
        } catch (ClassNotFoundException e) {
            istest = false;
        }

        isRunningTest = new AtomicBoolean (istest);
    }

    return isRunningTest.get ();
}

这避免了每次需要检查值时都进行 try-catch 检查，它只在您第一次调用此函数时运行检查.

This avoids doing the try-catch check every time you need to check the value and it only runs the check the first time you call this function.

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