grunt-modernizr/test/runner.js

Build out a lean, mean Modernizr machine.

var checkForDevFile = function (callback) {
  var cwd = process.cwd();
  var fs = require("fs");
  var path = require("path");

  var testFile = path.join(cwd, "lib", "modernizr-dev.js");
  var remoteTestFile = "http://modernizr.com/downloads/modernizr-latest.js";

  var http = require("http");

  var file = fs.createWriteStream(testFile);
  var request = http.get(remoteTestFile, function (response) {
    response.pipe(file);

    response.on("end", function () {
      callback();
    });
  });
};

checkForDevFile(function () {
  var Mocha = require("mocha");

  var mocha = new Mocha({
    setup : "bdd",
    reporter : process.env.TRAVIS ? "tap" : "spec",
    slow : 5000,
    timeout : 30000
  });

  mocha.addFile("test/tests.js");

  var runner = mocha.run();

  runner.on("fail", function (test, err) {
    var cp = require("child_process");
    var cwd = process.cwd();
    var path = require("path");

    var child = cp.spawn("git", [
      "checkout", "--", path.join(cwd, "Gruntfile.js")
    ], {
      stdio: "inherit"
    });

    child.on("exit", function () {
      process.exit(1);
    });

    process.stderr.write("         " + err.toString() + "\n\n");
  });
});