public void CircularDataSink_ProvidesAName()
{
var config = new SinkElement("id", "testData", 10, float.MinValue, float.MaxValue);
var sink = new CircularDataSink(config);
Assert.AreEqual(config.Name, sink.Name);
}
public void CircularDataSink_CanBeConfiguredWithASinkElement()
{
var name = "testBuffer";
var points = 1;
var config = new SinkElement("id", name, points);
var sink = new CircularDataSink(config);
Assert.AreEqual(name, sink.Name);
}
public void CircularDataSink_CanBeUpdatedWithMetricData()
{
var config = new SinkElement("id", "testData", 10, float.MinValue, float.MaxValue);
var sink = new CircularDataSink(config);
var snapshot = new Snapshot { new MetricData(10, DateTime.Now, new List<string> { "value" }) };
sink.Update(snapshot);
var actual = sink.Snapshot();
Assert.AreEqual(1, actual.Count());
Assert.AreEqual(10, actual.First().Data[0]);
}
public void CircularDataSink_CanProvideASnapshotOfDataAfterSomeCutoff()
{
var config = new SinkElement("id", "testData", 10, float.MinValue, float.MaxValue);
var sink = new CircularDataSink(config);
var snapshot = new Snapshot { new MetricData(10, DateTime.Parse("7 Feb 2013"), new List<string> { "value" }), new MetricData(20, DateTime.Parse("9 Feb 2013"), new List<string> { "value" }) };
sink.Update(snapshot);
var actual = sink.Snapshot(DateTime.Parse("8 Feb 2013"));
Assert.AreEqual(1, actual.Count());
Assert.AreEqual(20, actual.First().Data[0]);
}
public void ChainBuilderCanBuildAMainAndAPlottingChain()
{
var snapshot = new Snapshot
{
new MetricData(0.5, DateTime.Parse("12 Aug 2008"), new List<string> { "value" }),
new MetricData(0.8, DateTime.Parse("13 Aug 2008"), new List<string> { "value" }),
new MetricData(0.9, DateTime.Parse("14 Aug 2008"), new List<string> { "value" })
};
var configs = new List<ChainElement>
{
new ChainElement("chain1", "storageChain", "testSourceId", "testBufferId,testStoreId", ""),
new ChainElement("chain2", "plottingChain", "testBufferId", "", "testPlotterId"),
};
var source = MockRepository.GenerateMock<ISnapshotProvider>();
source.Expect(s => s.Snapshot()).Return(snapshot).Repeat.Any();
source.Expect(s => s.Name).Return("testSource").Repeat.Any();
source.Expect(s => s.Id).Return("testSourceId").Repeat.Any();
var bufferConfig = new SinkElement("testBufferId", "testBuffer", 10, 0, 1);
var buffer = new CircularDataSink(bufferConfig);
var store = new FileSystemDataStore(".", "testStore", "testStoreId");
var config = new PlotterElement("testPlotterId", "testPlotter", ".", 0, 1, 1, "");
var plotter = new MultiPlotter(config);
var sources = new HashSet<ISnapshotProvider> { source, buffer };
var sinks = new HashSet<ISnapshotConsumer> { buffer, store };
var multiSinks = new HashSet<IMultipleSnapshotConsumer> { plotter };
var chains = ChainBuilder.Build(sources, sinks, multiSinks, configs);
Assert.AreEqual(configs.Count, chains.Count());
foreach(var chain in chains)
{
chain.Update();
}
var chartName = Path.Combine(@".", plotter.Name + ".png");
var storeName = store.Name + ".am";
Assert.IsTrue(File.Exists(chartName));
Assert.IsTrue(File.Exists(storeName));
File.Delete(chartName);
File.Delete(storeName);
source.VerifyAllExpectations();
}
public void CircularDataSink_WarnsWhenStructureOfDataHasChanged()
{
var config = new SinkElement("id", "testData", 10, float.MinValue, float.MaxValue);
var sink = new CircularDataSink(config);
var snapshot = new Snapshot { new MetricData(10, DateTime.Now.AddMinutes(-1), new List<string> { "value" }) };
sink.Update(snapshot);
snapshot = new Snapshot { new MetricData(10, DateTime.Now, new List<string> { "value", "some extra value" }) };
sink.Update(snapshot);
}
public void CircularDataSink_IgnoreDataOlderThanMostRecentLastUpdate()
{
var config = new SinkElement("id", "testData", 10, float.MinValue, float.MaxValue);
var sink = new CircularDataSink(config);
sink.Update(new Snapshot
{
new MetricData( 1.0, DateTime.Now, new List<string> { "value" }),
new MetricData( 2.0, DateTime.Now.AddMinutes(5), new List<string> { "value" }),
new MetricData( 4.0, DateTime.Now.AddMinutes(10), new List<string> { "value" }),
new MetricData( 1.0, DateTime.Now.AddMinutes(5), new List<string> { "value" })
});
var snapshot = sink.Snapshot();
var total = 0.0d;
foreach (var dataPoint in snapshot)
{
total += dataPoint.Data[0].Value;
}
Assert.AreEqual(7.0d, total);
}
