meteor/packages/tinytest/tinytest_server.js

Meteor.startup(function () {
  Meteor._ServerTestResults.remove();
});

App.publish('tinytest/results', {
  collection: Meteor._ServerTestResults,
  selector: function (params) { return {run_id: params.run_id} }
});

App.methods({
  'tinytest/run': function (run_id) {
    var request = this;
    request.beginAsync();

    var reportFunc = function (report) {
      Meteor._ServerTestResults.insert({run_id: run_id, report: report});
    };

    var testRun = Meteor._TestManager.createRun(reportFunc);
    test._currentRun.withValue(testRun, function () {
      testRun.run(function () {
        request.respond();
      });
    });
  }
});