如何通过 Robolectric 对位置提供程序进行单元测试? [英] How to unit test location provider by Robolectric?

问题描述

有很多关于单元测试位置的好文档，例如 Android - Robolectric - 单元测试请求位置更新(LocationManager) 但不幸的是没有找到任何关于位置提供者的信息.由于我是 Robolectric 的新手，我仍然不清楚它是如何工作的.任何想法将不胜感激.

There are a lot of good docs regard unit testing location such as Android - Robolectric - Unit testing request location updates (LocationManager) but unfortunately didn't find anything regard location provider. Since I'm new to Robolectric I still have no clear insight how it works. Any idea would be appreciated.

以下代码是我在活动中使用的方法.如果此方法返回 false，我将显示 cardView，否则它是不可见的.所以我实际上想测试这个视图的可见性，但在此之前我需要模拟位置提供者来返回我想要的.这是我第一步要寻找的东西.谢谢

Following code is a method I have in my activity. I display a cardView if this method returns false otherwise it is invisible. So I actually want to test visibility of this view but before this I need to mock location provider to return what I want. This is the thing that I'm looking for in first step. Thanks

private boolean isLocationEnabled()
    {
        int locationMode = 0;
        String locationProviders;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
        {
            try
            {
                locationMode = Settings.Secure.getInt(this.getContentResolver(), Settings.Secure.LOCATION_MODE);

            }
            catch (Settings.SettingNotFoundException e)
            {
                Logger.logException(e);
            }
            return locationMode != Settings.Secure.LOCATION_MODE_OFF;
        }
        else
        {
            locationProviders = Settings.Secure.getString(this.getContentResolver(),
                    Settings.Secure.LOCATION_PROVIDERS_ALLOWED);
            return !TextUtils.isEmpty(locationProviders);
        }
    }

推荐答案

Robolectric 允许您调用 Settings 类并设置值:

Robolectric allows you to call into the Settings class and set values:

Settings.Secure.putString(contentResolver, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, "locationProvider");

把你想要的放在那里，它应该返回你在测试中设置的.

Put what you want in there and it should return what you've set in the tests.

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