Rspec 3.4/Rails 4.2：在一個規範中測試Flash消息失敗，但不是其他兩個測試

Question

我使用Rails 4.2和Rspec 3.4。我有3個控制器測試，測試閃光消息以查看是否顯示正確的消息。其中兩人正在工作，一人不在。我看不出工作人員和不工作人員之間的區別。

我的控制器看起來是這樣的：

before_filter :logged_in_as_team_member, except: [:index, :show, :choose_revisions_to_diff, :diff_results] 

def destroy 
    doc = Document.find(params[:id]) 
    if doc.owners.include?(@user) && !doc.document_revisions.any? 
    doc.destroy 
    redirect_to documents_url, notice: "Document successfully deleted." 
    else 
    redirect_to documents_url, flash: { error: "Could not delete document because you are not an owner or the document has revisions assigned to it." } 
    end 
end 


private 
def logged_in_as_team_member 
    redirect_to root_url, flash: { error: "You must be a Devcomm team member to perform this action." } unless @user.is_devcomm 
end 

我Rspec的是這樣的：

describe "DELETE #destroy" do 

    ### This test fails 
    it "as devcomm when user is owner returns success" do 
    devcomm_user 
    delete :destroy, id: documents(:nonsecretdocument1) 
    expect(response).to redirect_to(action: :index) 
    expect(flash[:notice]).to match "Document successfully deleted." 
    end 

    ### This test passes 
    it "as devcomm when user is not owner redirects to documents#index" do 
    devcomm_user 
    delete :destroy, id: documents(:nonsecretdocument2) 
    expect(response).to redirect_to(action: :index) 
    expect(flash[:error]).to match "Could not delete document because you are not an owner." 
    end 

    ### This test passes 
    it "as nondevcomm redirects to root_url" do 
    nondevcomm_user 
    delete :destroy, id: documents(:nonsecretdocument2) 
    expect(response).to redirect_to(root_url) 
    expect(flash[:error]).to match "You must be a Devcomm team member to perform this action." 
    end 
end 

錯誤：

Failures: 

    1) DocumentsController DELETE #destroy as devcomm when user is owner returns success 
    Failure/Error: expect(flash[:notice]).to match "Document successfully deleted." 
     expected nil to match "Document successfully deleted." 
    # ./spec/controllers/documents_controller_spec.rb:114:in `block (3 levels) in <top (required)>' 

任何人都可以看到，爲什麼第一次測試失敗，另外兩個傳球？

編輯添加：當我在用戶界面中刪除文檔時，閃光燈按預期顯示。

Answer 1

想通了。我正在使用夾具並添加了另一個模型。這個新模型依賴於documents(:nonsecretdocument1)，由於我對允許刪除的文檔存在限制，導致文檔未被刪除。