packages/charted/tool/hop_runner.dart

//
// Copyright 2014 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
//

library charted.tool.hop_runner;

import 'package:hop/hop.dart';
import 'dart:io';

main(List<String> args) {
  addTask('unit-test', createUnitTestsTask());
  runHop(args);
}

Task createUnitTestsTask() =>
  new Task((TaskContext context) {
    context.info("Running tests...");
    return Process.run('./content_shell',
        ['--dump-render-tree','test/test_in_browser.html']).
            then((ProcessResult process) =>
                checkTestsOutput(context, process));
  });

/// Reads the output from content_shell and checks for number of tests
/// passed/failed/erred. This method requires that the tests be done
/// in simple html unit test configuration - useHtmlConfiguration().
void checkTestsOutput(TaskContext context, ProcessResult process) {
  var output = (process.stdout as String),
      failRegEx = new RegExp(r"^[0-9]+\s+FAIL\s"),
      errorRegEx = new RegExp(r"^[0-9]+\s+ERROR\s"),
      failCount = 0,
      errorCount = 0;

  context.info(output);

  for (var line in output.split('\n')) {
    if (line.contains(failRegEx)) failCount++;
    if (line.contains(errorRegEx)) errorCount++;
  }

  if (failCount + errorCount > 0) {
    context.fail('FAIL: $failCount\nERROR: $errorCount');
  }
}