public void TestAddRemove1()
        {
            var group = new Tailviewer.BusinessLogic.Analysis.ActiveAnalysis(_template, _taskScheduler, _analysisEngine.Object, TimeSpan.Zero);

            _template.Analysers.Should().BeEmpty();

            var analyser = group.Add(new LogAnalyserFactoryId("foobar"), null);

            _template.Analysers.Should().HaveCount(1);

            group.Remove(analyser);
            _template.Analysers.Should().BeEmpty();
        }