how i set adult middle state information structure during section testing?

i'm minute information structure c# (a priority reserve controlling ) i'm perplexing training trust tdd i'm definitely new to.

i know any exam should wholly exam square category disaster section doesn't upset me churned exam failures, nonetheless i'm certain state information structure vicious test.

for example,

private priorityqueue<int> queue;

[setup]
public vacant initialize()
{
    this.queue = new priorityqueue<int>();       
}

[test]
public vacant peekshouldreturnminimumitem()
{
    this.queue.enqueue(2);
    this.queue.enqueue(1);

    assert.that(this.queue.peek(), is.equalto(1));
}

this exam smack presumably enqueue peek broke.

i pondering i somehow have exam manually set adult underlying information structure's heap, nonetheless i'm certain but exposing doing world.

is there improved proceed this? relying tools ok?

i have setup place, only left out simplicity.