public async Task ShouldFireEventForNewCharsOnAlreadyTrackedLine()
{
var filepath = $"./{Guid.NewGuid()}";
using (var writer = CreateConcurrentWriter(filepath))
{
var raisedEvents = new List <GameStateChangedEventArgs>();
var watcher = new LogObserver(filepath);
watcher.GameStateChanged += (sender, @event) => raisedEvents.Add(@event);
watcher.Start();
await writer.WriteAsync("1");
await Task.Delay(WriteDelayInMilliseconds);
await writer.WriteLineAsync("2");
await writer.WriteLineAsync("3");
await Task.Delay(WriteDelayInMilliseconds);
Assert.True(raisedEvents.Count > 0);
Assert.Equal(new[] { "1", "2", "3" }, raisedEvents.SelectMany(x => x.Data).ToArray());
}
}
public async Task ShouldFireEventsWithGroupedLines()
{
var filepath = $"./{Guid.NewGuid()}";
using (var writer = CreateConcurrentWriter(filepath))
{
var raisedEvents = new List <GameStateChangedEventArgs>();
var watcher = new LogObserver(filepath);
watcher.GameStateChanged += (sender, @event) => raisedEvents.Add(@event);
watcher.Start();
await writer.WriteLineAsync("0\r\n1\r\n2\r\n3\r\n4\r\n5\r\n6\r\n7\r\n8\r\n9\r\n10\r\n11\r\n12\r\n13\r\n14");
await Task.Delay(WriteDelayInMilliseconds);
Assert.Equal(2, raisedEvents.Count);
Assert.Equal(new[] { "0", "1", "2", "3", "4", "5", "6", "7", "8", "9" }, raisedEvents[0].Data);
Assert.Equal(new[] { "10", "11", "12", "13", "14" }, raisedEvents[1].Data);
}
}
public async Task ShouldNotFireEventOnEmptyLinesOnly()
{
var filepath = $"./{Guid.NewGuid()}";
using (var writer = CreateConcurrentWriter(filepath))
{
bool isEventRaised = false;
var watcher = new LogObserver(filepath);
watcher.GameStateChanged += (sender, @event) => isEventRaised = true;
watcher.Start();
await writer.WriteLineAsync(" ");
await writer.WriteLineAsync(string.Empty);
await Task.Delay(WriteDelayInMilliseconds);
Assert.False(isEventRaised);
}
}
public async Task ShouldFireEventOnNewLogLines()
{
var filepath = $"./{Guid.NewGuid()}";
using (var writer = CreateConcurrentWriter(filepath))
{
var watcher = new LogObserver(filepath);
var raisedEvent = await Assert.RaisesAsync <GameStateChangedEventArgs>(
handler => watcher.GameStateChanged += handler,
handler => watcher.GameStateChanged -= handler,
async() =>
{
watcher.Start();
await writer.WriteLineAsync("1\r\n2\r\n3");
await Task.Delay(WriteDelayInMilliseconds);
});
Assert.Equal(new[] { "1", "2", "3" }, raisedEvent.Arguments.Data);
}
}
public async Task ShouldNotFireEventForPreviouslyTrackedLines()
{
var filepath = $"./{Guid.NewGuid()}";
using (var writer = CreateConcurrentWriter(filepath))
{
var raisedEvents = new List <GameStateChangedEventArgs>();
var watcher = new LogObserver(filepath);
watcher.Start();
await writer.WriteLineAsync("1");
watcher.GameStateChanged += (sender, @event) => raisedEvents.Add(@event);
await Task.Delay(WriteDelayInMilliseconds);
await writer.WriteLineAsync("2\r\n3");
await Task.Delay(WriteDelayInMilliseconds);
Assert.True(raisedEvents.Count == 1);
Assert.Equal(new[] { "2", "3" }, raisedEvents[0].Data);
}
}