How to run Android robolectric tests with parallel mode enabled

Question

I am finding troubles in running Robolectric tests with parallel mode on over a clean Gradle and Maven cache.

This is build.gradle:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "com.robolectrictest.robotest"
        minSdkVersion 21
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }

    testOptions.unitTests.all {
        testLogging {
            events "failed", "skipped"
            showStackTraces = true
            exceptionFormat = "full"
        }
        maxParallelForks = 8
        forkEvery = 20
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    testCompile 'org.robolectric:robolectric:3.0'
    androidTestCompile 'junit:junit:4.12'
}

Building on API 23 displays the same issue. If I clear the caches (by removing ~/.gradle/caches/ and ~/.m2/repository) and run

./gradlew clean test

I encounter the following exception(s):

com.robolectrictest.robotest.ExampleUnitTest1 > addition_isCorrect1_1 FAILED
Unable to resolve artifact: Unable to get dependency information: Unable to read the metadata file for artifact 'org.robolectric:shadows-core:jar:21': Failed to build model from file '/Users/nicoloparolini/.m2/repository/org/robolectric/shadows-core/3.0/shadows-core-3.0.pom'.
        Error: 'no more data available - expected end tags  to close start tag  from line 131 and start tag  from line 128 and start tag  from line 119 and start tag  from line 105 and start tag  from line 2, parser stopped on TEXT seen ...
         to close start tag  from line 131 and start tag  from line 128 and start tag  from line 119 and start tag  from line 105 and start tag  from line 2, parser stopped on TEXT seen ...
         to close start tag  from line 131 and start tag  from line 128 and start tag  from line 119 and start tag  from line 105 and start tag  from line 2, parser stopped on TEXT seen ...
         to close start tag  from line 131 and start tag  from line 128 and start tag  from line 119 and start tag  from line 105 and start tag  from line 2, parser stopped on TEXT seen ...
         to close start tag  from line 131 and start tag  from line 128 and start tag  from line 119 and start tag  from line 105 and start tag  from line 2, parser stopped on TEXT seen ...



Now, the file is there, correctly formatted, without any odd special character in it. Looks simply like the process has been interrupted while reading it.

More details: this is the Activity being tested

package com.robolectrictest.robotest;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;


public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        final View button = findViewById(R.id.login);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                startActivity(new Intent(MainActivity.this, MainActivity.class));
            }
        });
    }
}


With its layout:




    

And this is the test, repeated 10 times per class with 200 classes to trigger multithreading:

public class ExampleUnitTest1 {@Test
    public void addition_isCorrect1_1() throws Exception {
        MainActivity activity = Robolectric.setupActivity(MainActivity.class);
        activity.findViewById(R.id.login).performClick();

        Intent expectedIntent = new Intent(activity, MainActivity.class);
        Assert.assertNotSame(Shadows.shadowOf(activity).getNextStartedActivity(), expectedIntent);
    }
}


I could not find any related bug or issue anywhere. Any ideas?

How to run Android robolectric tests with parallel mode enabled

0 Answers