diversify-mvn

diversify-mvn

Creates mutants of a given Maven project by modifying the dependencies versions.
Then build a Docker image using the Dockerfile of the project (should be available at the root of the project) and tries to run it.
If the output of the docker run mutant-image is Exit 0 => Success, otherwise it's a failure.

Installation

From npm

npm i -g diversify-mvn

From source

git clone [e-mail]:maxleiko/diversify-mvn.git
cd diversify-mvn
npm install
npm run build
npm link

Usage

diversify-mvn config.json

Config

export interface Config {
  appPath: string; // where to find the Java project to diversify
  versionsCount: number; // the "range" of versions to do mutations on
  engines: Dockerode.DockerOptions[]; // cf. dockerode doc

  pomPath?: string; // default: ''
  outputDir?: string; // default: '.results'
  blacklist?: string[]; // default: []
  mutantsLimit?: number; // default: nbGroups^(versionsCount+1)
  containerOptions?: Dockerode.ContainerCreateOptions; // default: {}
  taskTimeout?: number; // default: 1500
  overwriteContainer?: boolean; // default: false
}

Dockerode.DockerOptions and Dockerode.ContainerCreateOptions come from dockerode

Example:

{
  "appPath": "java-websocket",
  "versionsCount": 2,
  "engines": [
    { "socketPath": "/var/run/docker.sock" },
    { "host": "10.0.0.1", "port": 2375 },
    { "host": "10.0.0.2", "port": 2375 },
    { "host": "10.0.0.3", "port": 2375 }
  ]
}

Blacklist dependencies

Sometimes you do not want some dependencies to be diversified, for that we've introduced "blacklist".
Blacklist is an array of strings:

{
  "blacklist": [
    "groupId:artifactId",
    "allThatGroupId"
  ]
}

In this example, the dependency groupId:artifactId will not be changed by the program, and all the dependencies that have allThatGroupId as groupId will also not be changed.

Debug

DEBUG=diversify-mvn:* diversify-mvn config.json

Operating System diversification with Polyverse.io

If you want to go further into the diversification of your mutants, you can add Polyverse.io to your Docker images. This will replace all the currently installed packages (only Ubuntu, CentOS and Alpine supported) with diversified ones.

To add this layer of diversification, add those lines to your Dockerfile:

Ubuntu

...
RUN curl https://repo.polyverse.io/install.sh | sh -s czcw7pjshny8lzzog8bgiizfr
RUN apt-get update && apt-get -y --allow-change-held-packages install --reinstall $(dpkg --get-selections | awk '{print $1}')
...

Alpine

...
RUN curl https://repo.polyverse.io/install.sh | sh -s czcw7pjshny8lzzog8bgiizfr
RUN sed -n -i '/repo.polyverse.io/p' /etc/apk/repositories && apk upgrade --update-cache --available
...

CentOS

...
RUN curl https://repo.polyverse.io/install.sh | sh -s czcw7pjshny8lzzog8bgiizfr
RUN yum reinstall -y \*
...