file.tslint.failureCount and such are not populated

[unional]

Thanks for wanting to report an issue you've found in gulp-tslint. Please make sure it's an issue in gulp-tslint, not tslint. Otherwise please submit an issue to tslint: https://github.com/palantir/tslint/issues/new. Please delete this text and fill in the template below.

gulp-tslint version: 7.0.1
tslint version: 4.0.1
Operating system: OSX

Example gulp configuration (if applicable):

function negativeTest(config) {
  return gulp.src(`spec/${config}/*.fail.ts`)
    .pipe(gulpTslint({
      configuration: tslint.Configuration.findConfiguration(`./${config}.js`)
    }))
    .pipe((function () {
      var hasError = false;
      return through(function (file) {
        if (file.tslint.failureCount === 0) {
          gutil.log(
            `[${gutil.colors.cyan('gulp-tslint')}]`,
            gutil.colors.red(`error: ${file.tslint.failureCount}`),
            `(negative) ${file.relative}`);
          hasError = true;
        }
      }, function () {
        if (hasError) {
          this.emit('error', new PluginError('gulp-tslint', 'Failed negative test(s).'));
        } else {
          this.emit('end');
        }
      });
    })());
}

The file.tslint.failureCount is 0 even thou there are failures.
It used to work before. Currently, that tslint object is always:

{ failureCount: 0,
  failures: [],
  fixes: [],
  format: 'prose',
  output: '' }

[unional]

Nevermind. The tslint.Configuration.findConfiguration() doesn't work correctly.

[panuhorsmalahti]

What do you mean it doesn't work correctly?

[unional]

// works
gulpTslint({
  configuration: './custom.js'
})

// doesn't work
gulpTslint({
  configuration: tslint.Configuration.findConfiguration('./custom.js')
})

I didn't print out the result of findConfiguration() to see why it doesn't work, but it doesn't. 😛