spec/models/task_spec.rb

task_spec.rb

  it "Counting average execution time should return proper results" do
    task_1 = Task.create(name: "ABCD", status: "Created", completion_time:30)
    task_2 = Task.create(name: "ABCDE", status: "Created", completion_time: 70)

    sum_of_completion_time = task_1.completion_time + task_2.completion_time
    number_of_tasks = Task.all.count

    average_execution_time = sum_of_completion_time / number_of_tasks

    expect(average_execution_time).to eq(task_2.count_average_execution_time)

  end