This is a self contained pre-configured Truffle project that can be compiled and tested on a build server.

Read the full blog post for information on how to set this up https://davidburela.wordpress.com/2017/09/06/ethereum-devops-with-vsts-easier-now-with-new-truffle-installer-npx/

1. Clone the repo
2. make sure you have npm 5.3.0 or later
3. Run npm install to restore the npm packages.
4. you can now compile and run the tests using npx to execute the npm packages that are in the DevDependencies

npx truffle compile
npx truffle test --network localtestrpc

I'm taking advantage of 2 important things:

1. the new npx command allows you to execute node packages that used to need to be installed globally, and instead you can install as a DevDependency and run it just in the project folder.
2. I specified a new network in truffle.js that uses the TestRPC provider. This will make Truffle run TestRPC temporarily for the duration of the commmand, and then tear it down again.

to run on a build server the critical commands are:

npm install
npx truffle compile
npx truffle test --network localtestrpc

You may also want to change the mocha reporter to output to a .xml file. You can do this by modifying the truffle.js file

e.g. change mocha: { reporter: "spec", and replace with mocha: { reporter: "mocha-junit-reporter",