单元测试获取Context的第一种方法:
import androidx.test.platform.app.InstrumentationRegistry;@Testpublic void main() {Context context = InstrumentationRegistry.getInstrumentation().getTargetContext();}
单元测试获取Context的第二种方法
import androidx.test.core.app.ApplicationProvider;@Testpublic void main() {Context context = ApplicationProvider.getApplicationContext();}