public void Sample_on_targetgroups()
{
var population = new []
{
new Unit {
Id = "*****@*****.**", TargetGroup = "TG1"
},
new Unit {
Id = "*****@*****.**", TargetGroup = "TG1"
},
new Unit {
Id = "*****@*****.**", TargetGroup = "TG1"
},
new Unit {
Id = "*****@*****.**", TargetGroup = "TG2"
},
new Unit {
Id = "*****@*****.**", TargetGroup = "TG2"
},
new Unit {
Id = "*****@*****.**", TargetGroup = "TG2"
}
};
var targetGroups = new []
{
new TargetGroup {
Id = "TG1", SampleSize = 2
},
new TargetGroup {
Id = "TG2", SampleSize = 2
}
};
var sampler = new Sampler();
var sample = sampler.CreateSampleForTargetGroups(population, targetGroups);
// TG1 should have 2 units sampled
// TG2 should have 2 units sampled
sample.Length.ShouldBe(4);
sample.Count(x => x.TargetGroup == "TG1").ShouldBe(2);
sample.Count(x => x.TargetGroup == "TG2").ShouldBe(2);
}