java - Android Studio 测试不工作

Question

当 Android Studio 无缘无故开始报告“未找到测试”时，我该怎么办？昨天的测试有效。现在我得到了这个随机错误。

存储库是 available online 。我的实际测试类如下所示:

package dev.game.adventure;

import static junit.framework.Assert.assertEquals;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.CoreMatchers.*;
import static org.mockito.Mockito.*;

import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.support.test.InstrumentationRegistry;
import android.widget.TableLayout;
import android.widget.TextView;


@RunWith(MockitoJUnitRunner.class)
public class AdventureTest {

    private static final String FAKE_STRING = "HELLO WORLD";

    @Mock
    Simulation engine;

    @Mock
    AdventureWorld mWorld;

    @Mock
    Adventure mworld;

    @Mock
    Context aContext;

    @Mock
    FullscreenActivity mActivity;

    @Mock
    Drawable mDrawable;

    @Mock
    Resources mResources;

    @Mock
    Place mPlace;

    @Mock
    AdventureGame ag;



    @Test
    @Ignore
    public void Tedye(){
        //when(mWorld.defaultPlace()).thenReturn(mPlace);
       // myObjectUnderTest.wakeMeAfter(new WalkingPerson(myObjectUnderTest, mWorld, "new", 2, mActivity), 10);
        //String result2 = myObjectUnderTest.getHelloWorldString();
        //assertThat(result2, is(FAKE_STRING));}  createPlace("Heaven", target, R.mipmap.dungeon2);
        //    Adventure a = new Adventure(textview, mactivity, ag);

    }


    @Test
    @Ignore
    public void testd() {
//           Textview scrollable = ''''''''''''(R.id.textView1);

        when(mWorld.defaultPlace()).thenReturn(mPlace);
        Context mCont;

    }




    @Test
    public void adventureWorld() {
       // Simulation myObjecUnderTest = new Simulation();
        Adventure a = new Adventure(new TextView(aContext), mActivity, ag);
        Player p = a.getPlayer();
        p.say("foobar", mActivity);
        p.say("Hello my name is " + a.getPlayer().getMe().name, mActivity);

    }

    @Test
    public void adventureTest () {
            Simulation myObjectUnderTest = new Simulation();
            when(mWorld.defaultPlace()).thenReturn(mPlace);
            myObjectUnderTest.wakeMeAfter(new WalkingPerson(myObjectUnderTest, mWorld, "new", 2, mActivity), 10);
            String result2 = myObjectUnderTest.getHelloWorldString();
            assertThat(result2, is(FAKE_STRING));
        }

        @Test
        public void personTest () {
            Simulation myObjectUnderTest = new Simulation();
            when(mResources.getDrawable(R.mipmap.dungeon)).thenReturn(mDrawable);
            when(mActivity.getResources()).thenReturn(mResources);
            when(mActivity.getResources().getDrawable(R.mipmap.dungeon)).thenReturn(mDrawable);
            when(mWorld.defaultPlace()).thenReturn(mPlace);
            WalkingPerson myObjectUnderTest2 = new WalkingPerson(myObjectUnderTest, mWorld, "blaha", 2, mActivity);
            String result2 = myObjectUnderTest2.getHelloWorldString();
            myObjectUnderTest2.getThings();
            myObjectUnderTest2.getWorld();
            assertThat(result2, is(FAKE_STRING));
        }

        @Test
        public void trollTest () {
            Simulation myObjectUnderTest = new Simulation();
            AdventureWorld ag;
            when(mResources.getDrawable(R.mipmap.dungeon)).thenReturn(mDrawable);
            when(mActivity.getResources()).thenReturn(mResources);
            when(mActivity.getResources().getDrawable(R.mipmap.dungeon)).thenReturn(mDrawable);
            when(mWorld.defaultPlace()).thenReturn(mPlace);
            WalkingPerson myObjectUnderTest2 = new Troll(myObjectUnderTest, mWorld, "blaha", mActivity);
            String result2 = myObjectUnderTest2.getHelloWorldString();
            myObjectUnderTest2.getThings();
            AdventureWorld adv = (AdventureWorld) myObjectUnderTest2.getWorld();
            //assertThat(adv.defaultPlace().toString().equals(mWorld.defaultPlace().toString()));
           // assertThat(adv.defaultPlace(), is(FAKE_STRING));
            assertThat(myObjectUnderTest2.getName(), is("Loke"));
            assertThat(adv.messsage, is(FAKE_STRING));
        }

        @Test
        public void cokeTest () {
            when(mWorld.getPlace("Dungeon")).thenReturn(mPlace);
            mWorld.getPlace("Dungeon").addThing(new CocaCola("Ljummen cola"));
            Simulation myObjectUnderTest = new Simulation();
            when(mResources.getDrawable(R.mipmap.dungeon)).thenReturn(mDrawable);
            when(mActivity.getResources()).thenReturn(mResources);
            when(mActivity.getResources().getDrawable(R.mipmap.dungeon)).thenReturn(mDrawable);
            when(mWorld.defaultPlace()).thenReturn(mPlace);
            WalkingPerson myObjectUnderTest2 = new Troll(myObjectUnderTest, mWorld, "blaha", mActivity);
            String result2 = myObjectUnderTest2.getHelloWorldString();
            myObjectUnderTest2.getThings();
            myObjectUnderTest2.getWorld();
            assertThat(result2, is(FAKE_STRING));
        }

        @Test
        public void testPlace () {
            Simulation myObjectUnderTest = new Simulation();
            when(mResources.getDrawable(R.mipmap.dungeon)).thenReturn(mDrawable);
            mWorld.createPlace("Heaven", mActivity, R.mipmap.dungeon2);
            mWorld.createPlace("Hell", mActivity, R.mipmap.dungeon2);
            mWorld.connect("Heaven", "Hell", "Down", "Up");
            mWorld.randomPlace();

        }

        @Test
        public void useAppContext () throws Exception {
            // Context of the app under test.
            Context appContext = InstrumentationRegistry.getTargetContext();
            assertEquals("dev.game.adventure", appContext.getPackageName());
        }
    }

构建日志:https://travis-ci.org/montao/adventure

Answer 1

我无法解释为什么您的测试似乎之前运行而不是现在运行，但我克隆了该项目并能够通过以下方式运行测试:

• 将 AdventureTest 从 src/androidTest 源代码树移动到 src/test
• 从 AdventureTest 中注释掉/删除所有 Android 类
• 添加一个简单的虚拟 @Test 方法(例如 assertTrue(false))

一般经验法则:

• 如果您要在测试中使用 Android 类，请使用 Robolectric
• 否则，请使用您喜欢的任何测试运行器实现(在您的情况下为 Mockito)

编辑 - 添加示例 ROBOLECTRIC 测试

Robolectric 可让您在普通 JVM 上测试 Android 代码，而不必在 Dalvik 或其他平台上运行。下面是几行内容可以帮助您入门，但请参阅 http://robolectric.org/因为该框架的产品非常广泛。

在app/build.gradle中，添加以下内容:

android {
    testOptions {
        unitTests {
            includeAndroidResources = true
        }
    }
}

dependencies {
    ...
    testCompile 'org.assertj:assertj-core:3.8.0'
    testImplementation "org.robolectric:robolectric:3.5.1"
    ...
}

在下面的测试中，FullScreenActivity 通过其 create() 方法进行实例化和驱动，然后用作 Context 来创建 TextView 。然后调用您自己的一些应用程序代码，最后针对 TextView 运行断言以验证某些预期状态。没有模拟 - 只是在工作站的 JVM 上运行的常规 Android 类。

@RunWith(RobolectricTestRunner.class)
public class AdventureTest {
    ...
    @Test
    public void adventureWorld() {
        mActivity = Robolectric.buildActivity(FullscreenActivity.class)
                .create()
                .get();

        ag = new AdventureGame(mActivity, null);

        // Simulation myObjecUnderTest = new Simulation();
        final TextView speechTextView = new TextView(mActivity);

        final Adventure adventure = new Adventure(speechTextView, mActivity, ag);

        final Player player = adventure.getPlayer();
        player.say("foobar", mActivity);
        player.say("Hello my name is " + adventure.getPlayer().getMe().name, mActivity);


        assertThat(speechTextView.getText()).containsIgnoringCase("Hello my name is");
    }
    ...

希望有帮助!