public void Should_return_a_result()
{
//Arrange
var counterBusiness = new CounterBusiness();
var config = Mock.Of<IConfig>(x => x.Groups == Mocks.Of<ICounterGroup>(y => y.Name == "A" && y.SecondsInterval == 10 && y.Counters == Mocks.Of<ICounter>(z => z.CategoryName == "Processor" && z.CounterName == "% Processor Time" && z.InstanceName == "_Total").Take(2).ToList()).Take(2).ToList());
Exception exception = null;
//Act
var result = counterBusiness.GetPerformanceCounterGroups(config);
//Assert
Assert.That(result, Is.Not.Null);
Assert.That(exception, Is.Null);
Assert.That(result.Count(), Is.EqualTo(2));
}
public void Should_Apply_Filter_Which_Returns_None()
{
// The test filter remove all counters
// Arrange
var filterMock = new Mock<ICounterInstanceFilter>();
filterMock.Setup(x => x.Execute("MyInstance")).Returns((string)null);
var filters = new[] { filterMock.Object };
var counters = Mocks.Of<ICounter>(c => c.CategoryName == "Processor" && c.CounterName == "% Processor Time" && c.InstanceName == "*").Take(1).ToList();
var counterGroup = Mocks.Of<ICounterGroup>(cg => cg.Name == "A" && cg.Counters == counters && cg.Filters == filters).Take(1).ToList();
var config = Mock.Of<IConfig>(cfg => cfg.Groups == counterGroup);
var counterBusiness = new CounterBusiness();
// Act
var result = counterBusiness.GetPerformanceCounterGroups(config);
// Assert
Assert.That(result.Count(), Is.EqualTo(1));
var resultCounters = result.First().GetCounters();
Assert.That(resultCounters.Count(), Is.EqualTo(0), "Filter should have removed all performances counters");
}
public void Should_Apply_Filter_Which_Returns_All()
{
// The test filter match all counters
// For the processor time, it will result in having Environment.ProcessorCount + 1 counters (_Total)
// Arrange
var filterExpression = new Func<string, string>(z => z);
var filterMock = new Mock<ICounterInstanceFilter>();
filterMock.Setup(x => x.Execute(It.IsAny<string>())).Returns(filterExpression);
var filters = new[] { filterMock.Object };
var counters = Mocks.Of<ICounter>(z => z.CategoryName == "Processor" && z.CounterName == "% Processor Time" && z.InstanceName == "*" && z.MachineName == null && z.Max == null && z.Tags == new List<ITag> {}).Take(1).ToList();
var counterGroup = Mocks.Of<ICounterGroup>(y => y.Name == "A" && y.SecondsInterval == 10 && y.Counters == counters && y.Filters == filters).Take(1).ToList();
var config = Mock.Of<IConfig>(x => x.Groups == counterGroup);
var counterBusiness = new CounterBusiness();
// Act
var result = counterBusiness.GetPerformanceCounterGroups(config);
// Assert
Assert.That(result.Count(), Is.EqualTo(1));
var resultCounters = result.First().GetCounters();
Assert.That(resultCounters.Count(), Is.EqualTo(Environment.ProcessorCount + 1));
}
public void Should_Apply_Filter_Which_Returns_One()
{
// The test filter match one counter : _Total
// Arrange
var filterExpression = new Func<string, string>(z => z == "_Total" ? z : null);
var filterMock = new Mock<ICounterInstanceFilter>();
filterMock.Setup(x => x.Execute(It.IsAny<string>())).Returns(filterExpression);
var filters = new[] { filterMock.Object };
var counters = Mocks.Of<ICounter>(z => z.CategoryName == "Processor" && z.CounterName == "% Processor Time" && z.InstanceName == "*").Take(1).ToList();
var counterGroup = Mocks.Of<ICounterGroup>(y => y.Name == "A" && y.SecondsInterval == 10 && y.Counters == counters && y.Filters == filters).Take(1).ToList();
var config = Mock.Of<IConfig>(x => x.Groups == counterGroup);
var counterBusiness = new CounterBusiness();
// Act
var result = counterBusiness.GetPerformanceCounterGroups(config);
// Assert
Assert.That(result.Count(), Is.EqualTo(1));
var resultCounters = result.First().GetCounters();
Assert.That(resultCounters.Count(), Is.EqualTo(1));
Assert.AreEqual(resultCounters.First().InstanceName, "_Total");
}
public void Should_throw_if_no_groups()
{
//Arrange
var counterBusiness = new CounterBusiness();
var config = Mock.Of<IConfig>();
Exception exception = null;
List<IPerformanceCounterGroup> result = null;
//Act
try
{
result = counterBusiness.GetPerformanceCounterGroups(config).ToList();
}
catch (Exception exp)
{
exception = exp;
}
//Assert
Assert.That(result, Is.Null);
Assert.That(exception, Is.Not.Null);
Assert.That(exception.Message, Is.EqualTo("No groups in config."));
}