public void MeasurementWriterSimpleTest()
{
var stream = new StringStream();
var writer = new MeasurementWriter(stream.Writer)
{
DesiredFlushRate = 5
};
for (var i = 0; i < 6; i++)
{
var measurement = new Measurement(new DateTime(2020, 12, 28, 0, 0, i), 2600 + 5 * i, 3000 + 1000 * i);
Assert.AreEqual(i == 4, writer.Write(measurement), "Flush happens after 5 data points");
if (i == 5)
{
writer.Flush();
}
if (i < 4)
{
Assert.IsTrue(string.IsNullOrEmpty(stream.Content()), "Nothing written the first 4 data points");
}
else if (i == 4)
{
Assert.AreEqual("M,2600,3000,2605,4000,2610,5000,2615,6000,2620,7000,46194\r\n", stream.Content(),
"The first flush contains 5 data points");
}
else
{
Assert.AreEqual("M,2600,3000,2605,4000,2610,5000,2615,6000,2620,7000,46194\r\nM,2625,8000,48383\r\n", stream.Content(),
"After an explicit flush, data gets written immediately.");
}
}
}
public void MeasurementWriterHeaderAndFlushRateTest()
{
var stream = new StringStream();
var writer = new MeasurementWriter(stream.Writer);
Assert.AreEqual(10u, writer.FlushRate, "Default flush rate is 10");
writer.DesiredFlushRate = 2;
Assert.AreEqual(2u, writer.FlushRate, "Changing desired flush rate before printing in a line changes FlushRate");
writer.WriteHeader();
Assert.AreEqual("M,M0,W0,M1,W1,CRC\r\n", stream.Content(), "Header has 2 data points");
writer.Write(new Measurement(DateTime.Now, 2400, 6000));
writer.DesiredFlushRate = 0;
Assert.AreEqual(2u, writer.FlushRate, "Changing desired flush rate while in a line doesn't immediately change FlushRate");
writer.Write(new Measurement(DateTime.Now, 2375, 6200));
Assert.AreEqual("M,M0,W0,M1,W1,CRC\r\nM,2400,6000,2375,6200,46910\r\n", stream.Content(), "Flush happens after 2 data points");
Assert.AreEqual(0u, writer.FlushRate, "The desired flush rate gets applied now");
// This measurement should get ignored
writer.Write(new Measurement(DateTime.Now, 2450, 5800));
writer.DesiredFlushRate = 1;
Assert.AreEqual(1u, writer.FlushRate, "When not logging, FlushRrate gets applied immediately");
writer.Write(new Measurement(DateTime.Now, 2425, 6400));
Assert.AreEqual("M,M0,W0,M1,W1,CRC\r\nM,2400,6000,2375,6200,46910\r\nM,2425,6400,19517\r\n", stream.Content(),
"data point sent while FlushRate was 0 is not included");
}
