| part of dromaeo; |
| |
| typedef void Test(); |
| typedef void Operation(); |
| typedef void Reporter(Map<String, Result> results); |
| |
| class Suite { |
| /** |
| * Ctor. |
| * [:_window:] The window of the suite. |
| * [:_name:] The name of the suite. |
| */ |
| Suite(this._window, this._name) : |
| _operations = new List<Operation>(), |
| _nTests = 0, _nRanTests = 0 { |
| starter(MessageEvent event) { |
| String command = event.data; |
| switch (command) { |
| case 'start': |
| _run(); |
| return; |
| default: |
| _window.alert('[${_name}]: unknown command ${command}'); |
| } |
| }; |
| _window.onMessage.listen(starter); |
| } |
| |
| /** |
| * Adds a preparation step to the suite. |
| * [:operation:] The operation to be performed. |
| */ |
| Suite prep(Operation operation){ |
| return _addOperation(operation); |
| } |
| |
| // How many times each individual test should be ran. |
| static const int _N_RUNS = 5; |
| |
| /** |
| * Adds another test to the suite. |
| * [:name:] The unique name of the test |
| * [:test:] A function holding the test to run |
| */ |
| Suite test(String name, Test test_) { |
| _nTests++; |
| // Don't execute the test immediately. |
| return _addOperation(() { |
| // List of number of runs in seconds. |
| List<double> runsPerSecond = new List<double>(); |
| |
| // Run the test several times. |
| try { |
| // TODO(antonm): use timer to schedule next run as JS |
| // version does. That allows to report the intermidiate results |
| // more smoothly as well. |
| for (int i = 0; i < _N_RUNS; i++) { |
| int runs = 0; |
| final int start = new DateTime.now().millisecondsSinceEpoch; |
| |
| int cur = new DateTime.now().millisecondsSinceEpoch; |
| while ((cur - start) < 1000) { |
| test_(); |
| cur = new DateTime.now().millisecondsSinceEpoch; |
| runs++; |
| } |
| |
| runsPerSecond.add((runs * 1000.0) / (cur - start)); |
| } |
| } catch (exception, stacktrace) { |
| _window.alert('Exception ${exception}: ${stacktrace}'); |
| return; |
| } |
| _reportTestResults(name, new Result(runsPerSecond)); |
| }); |
| } |
| |
| /** |
| * Finalizes the suite. |
| * It might either run the tests immediately or schedule them to be ran later. |
| */ |
| void end() { |
| _postMessage('inited', { 'nTests': _nTests }); |
| |
| } |
| |
| _run() { |
| int currentOperation = 0; |
| handler() { |
| if (currentOperation < _operations.length) { |
| _operations[currentOperation](); |
| currentOperation++; |
| new Timer(const Duration(milliseconds: 1), handler); |
| } else { |
| _postMessage('over'); |
| } |
| } |
| Timer.run(handler); |
| } |
| |
| _reportTestResults(String name, Result result) { |
| _nRanTests++; |
| _postMessage('result', { |
| 'testName': name, |
| 'mean': result.mean, |
| 'error': result.error, |
| 'percent': (100.0 * _nRanTests / _nTests) |
| }); |
| } |
| |
| _postMessage(String command, [var data = null]) { |
| final payload = { 'command': command }; |
| if (data != null) { |
| payload['data'] = data; |
| } |
| _window.parent.postMessage(JSON.encode(payload), '*'); |
| } |
| |
| // Implementation. |
| |
| final Window _window; |
| final String _name; |
| |
| List<Operation> _operations; |
| int _nTests; |
| int _nRanTests; |
| |
| Suite _addOperation(Operation operation) { |
| _operations.add(operation); |
| return this; |
| } |
| } |