function TAP (runner) {
  Base.call(this, runner);

  var n = 1;
  var passes = 0;
  var failures = 0;

  runner.on('start', function () {
    var total = runner.grepTotal(runner.suite);
    console.log('%d..%d', 1, total);
  });

  runner.on('test end', function () {
    ++n;
  });

  runner.on('pending', function (test) {
    console.log('ok %d %s # SKIP -', n, title(test));
  });

  runner.on('pass', function (test) {
    passes++;
    console.log('ok %d %s', n, title(test));
  });

  runner.on('fail', function (test, err) {
    failures++;
    console.log('not ok %d %s', n, title(test));
    if (err.stack) {
      console.log(err.stack.replace(/^/gm, '  '));
    }
  });

  runner.on('end', function () {
    console.log('# tests ' + (passes + failures));
    console.log('# pass ' + passes);
    console.log('# fail ' + failures);
  });
}
Initialize a new `TAP` reporter.

@api public
@param {Runner} runner