public void if_a_metric_is_being_queried_for_the_second_time_it_returns_a_measured_value() { var mockPerformanceCounter = new Mock<IPerformanceCounter>(); mockPerformanceCounter.Setup(m => m.NextValue()).Returns(5.0f); var mockPerformanceCounterCategoryRepository = new Mock<IPerformanceCounterCategoryRepository>(); mockPerformanceCounterCategoryRepository.Setup(m => m.GetInstances(It.IsAny<string>())).Returns(new[] { "foo" }); var source = new PerformanceCounterSource(new PerformanceCounterRegistryTestHarness(_registryDictionary, (a, b, c) => mockPerformanceCounter.Object), mockPerformanceCounterCategoryRepository.Object); // ReSharper disable once ReturnValueOfPureMethodIsNotUsed source.QueryValue("\\category(*)\\counter").ToList(); var samples = source.QueryValue("\\category(*)\\counter").ToList(); Assert.That(samples.Count, Is.EqualTo(1)); Assert.That(samples.First().Value, Is.EqualTo(5.0f)); }
public void when_querying_for_a_metric_in_a_particular_instances_then_the_instances_do_not_need_to_be_read() { var mockPerformanceCounter = new Mock<IPerformanceCounter>(); var mockPerformanceCounterCategoryRepository = new Mock<IPerformanceCounterCategoryRepository>(); mockPerformanceCounterCategoryRepository.Setup(m => m.GetInstances(It.IsAny<string>())).Returns(new[] { "foo" }); var source = new PerformanceCounterSource(new PerformanceCounterRegistryTestHarness(_registryDictionary, (a, b, c) => mockPerformanceCounter.Object), mockPerformanceCounterCategoryRepository.Object); // ReSharper disable once ReturnValueOfPureMethodIsNotUsed source.QueryValue("\\category(instance)\\counter").ToList(); mockPerformanceCounterCategoryRepository.Verify(m => m.GetInstances(It.IsAny<string>()), Times.Never); }
public void if_a_metric_is_being_queried_for_the_first_time_it_returns_no_value() { var mockPerformanceCounter = new Mock<IPerformanceCounter>(); mockPerformanceCounter.Setup(m => m.NextValue()).Returns(5.0f); var mockPerformanceCounterCategoryRepository = new Mock<IPerformanceCounterCategoryRepository>(); mockPerformanceCounterCategoryRepository.Setup(m => m.GetInstances(It.IsAny<string>())).Returns(new[] { "foo" }); var source = new PerformanceCounterSource(new PerformanceCounterRegistryTestHarness(_registryDictionary, (a, b, c) => mockPerformanceCounter.Object), mockPerformanceCounterCategoryRepository.Object); var samples = source.QueryValue("\\category(*)\\counter").ToList(); Assert.That(samples.Count, Is.EqualTo(0)); }