SingleResponsibilityPrinciple_Test.cs

[TestFixture]
public class Valid
{
    [Test]
    public void TestReportGeneration()
    {
        var sensorName = "TempSensor 1";
        var fileName = "FileName.txt";
        var sensor = new Sensor(sensorName, new List<double>() { 1.0D });

        var fileSystemMock = Mock.Create<IFilesystem>();
        var expectedContent =
            $"#SensorInfo#Name:{sensorName};Average:1;Minimum:1;Maximum:1{Environment.NewLine}##1";
        fileSystemMock.Arrange((x) => fileSystemMock.WriteContentToFile(fileName, expectedContent)).MustBeCalled();

        var reportGenerator = new PlainTextSensorReportGenerator(fileSystemMock);
        reportGenerator.GenerateReport(sensor, fileName);

        Mock.Assert(fileSystemMock);
    }
}