Android的单元测试：测试活动前结算preFS [英] android unit test: clearing prefs before testing activity

问题描述

我要确保preference是在我的单元测试开始了我的活动前清零。

I want to ensure that a preference is cleared before my Activity is started in my unit test.

问题是，清除preferences，你需要调用 getActivity（）。在此之后，活动启动时，它读取preferences。

The problem is that to clear the preferences, you need to call getActivity(). After that, the Activity is started, which reads the preferences.

@Override
protected void setUp() throws Exception {
    super.setUp();
    mActivity = this.getActivity();
    SharedPreferences prefs = 
       PreferenceManager.getDefaultSharedPreferences(mActivity);
    prefs.edit().clear().commit();
}

在 getActivity（）被调用时，活动创建，它读取$ P $的价值PF，先下一行清除preF。

When getActivity() is called, the Activity is created, which reads the value of the pref, before the next lines clear the pref.

有没有办法获得上下文对象，而无需启动活动

Is there a way obtaining a Context object without starting the Activity?

我是新来的Andr​​oid单元测试，所以也许我失去了一些基本的东西。

I'm new to Android unit tests, so maybe I'm missing something basic.

感谢。

推荐答案

嗯，找到了答案在这里，
<一href=\"http://stackoverflow.com/questions/5544205/accessing-application-context-from-testsuite-in-setup-before-calling-getactivi\">Accessing从TestSuite的在安装应用程序上下文（）调用getActivity（）之前

eh, found the answer here, Accessing application context from TestSuite in Setup() before calling getActivity()

调用

this.getInstrumentation().getTargetContext()

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