没有错误仍然Android Studio中说，＆QUOT;发现＆QUOT没有考试; [英] No error still Android Studio says "no tests were found"

问题描述

我想写我MainActivity仪表测试。我跟着给<一个答案href=\"http://stackoverflow.com/questions/22106891/android-studio-unit-testing-unable-to-find-instrumentation-or-class-not-found-e\">here.尽管如此Android Studio中找不到任何测试。我在androidTest文件夹中的类ApplicationTest.java。下面是类的内容：

I am trying to write an instrumentation test for my MainActivity. I followed the answers given here. Still Android Studio cannot find any tests. I have the class ApplicationTest.java in the androidTest folder. Here's the contents of the class:

package com.example.monicamarcus.mymusicplayer

import android.app.Activity;
import android.test.ActivityInstrumentationTestCase2;
import com.example.monicamarcus.mymusicplayer.MainActivity;

public class ApplicationTest extends ActivityInstrumentationTestCase2<MainActivity> { 
    public ApplicationTest() {
        super(MainActivity.class);
    }

    public void testNextTrackButton() throws Exception {
        Activity activity = getActivity();

        Button nextButton = (Button) activity.findViewById(R.id.nextTrackBt);
        activity.runOnUiThread(new Runnable() {
            @Override
            public void run() {
                nextButton.performClick();
                assertTrue(currentPosition < songList.size());
            }});
        activity.finish();
    }
}

什么是错的这个测试类？或者与测试？我没有得到任何错误，它只是没有找到任何的测试运行。我运行ApplicationTest后的输出与以下行结束：

What is wrong with this test class? Or with the tests? I don't get any error, it just does not find any test to run. After I run the ApplicationTest the output ends with the following lines:

Running tests
Test running startedFinish
Empty test suite.

下面是该应用的文件的build.gradle：

Here's the build.gradle file for the app:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "com.example.monicamarcus.mymusicplayer"
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        testApplicationId "app.src.androidTest.java.com.example.monicamarcus.mymusicplayer"
        testInstrumentationRunner "android.test.InstrumentationTestRunner"
    }
    buildTypes {
        debug {
            minifyEnabled false
        }
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

android {
    useLibrary 'org.apache.http.legacy'
}

android {

    sourceSets {

        androidTest {
            java.srcDirs = ['androidTest/java']
        }

    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.1.1'
    androidTestCompile 'junit:junit:4.12'
}

下面是测试运行的输出：

Here's the output of the test run:

Testing started at 1:56 PM ...
Target device: gt_i8190n-4790068ee9a750c6
Installing APK: /Users/monicamarcus/AndroidStudioProjects/MyMusicPlayer/app/build/outputs/apk/app-debug.apk
Uploading file to: /data/local/tmp/com.example.monicamarcus.mymusicplayer
Installing com.example.monicamarcus.mymusicplayer
DEVICE SHELL COMMAND: pm install -r "/data/local/tmp/com.example.monicamarcus.mymusicplayer"
pkg: /data/local/tmp/com.example.monicamarcus.mymusicplayer
Success


Installing APK: /Users/monicamarcus/AndroidStudioProjects/MyMusicPlayer/app/build/outputs/apk/app-debug-androidTest-unaligned.apk
Uploading file to: /data/local/tmp/app.src.androidTest.java.com.example.monicamarcus.mymusicplayer
Installing app.src.androidTest.java.com.example.monicamarcus.mymusicplayer
DEVICE SHELL COMMAND: pm install -r "/data/local/tmp/app.src.androidTest.java.com.example.monicamarcus.mymusicplayer"
pkg: /data/local/tmp/app.src.androidTest.java.com.example.monicamarcus.mymusicplayer
Success


Running tests
Test running startedFinish
Empty test suite.

在我做了一些改变（我可以发布他们，如果有人有兴趣）上运行的内容如下仪器测试类的结果：运行测试试运行启动试运行失败：没有检验结果空测试套件。 没有人有这几样测试经验？

After I made some changes (I can publish them if anybody is interested) the result of running the instrumentation test class read as follows: "Running tests. Test running started. Test running failed: No test results. Empty test suite." Nobody has experience with these kind of tests?

推荐答案

在的build.gradle ， testApplicationId 的外观很奇怪。我会删除此和 testInstrumentationRunner 。默认值应该是不错。

In build.gradle, testApplicationId looks very strange. I would remove this and testInstrumentationRunner. The default values should be fine.

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