testem.json

{
    "framework" : "mocha+chai",
    "before_tests" : "grunt compile",
    "src_files" : [
        "src/**/*.ts",
        "test/**/*.ts"
    ],
    "serve_files" : [
        "compiled/src/**/*.js",
        "compiled/test/**/*.js"
    ],

    "launch_in_ci": ["PhantomJS"]
}