[英]RSpec: how do I correctly simulate #destroy failure
我很難在控制器中模擬destroy方法的失敗。
我的控制器的銷毀看起來像這樣:
def destroy
project = Project.find(params[:id])
project.destroy
if project.destroyed?
render json: {
project: nil,
message: "The project was successfully deleted"
}
else
render json: {
message: "Could not delete project",
}, status: :unprocessable_entity
end
end
我正在嘗試在測試中的else塊中呈現json,但無法完成。 到目前為止,特定測試如下所示:
describe "DELETE #destroy" do
let!(:project) { create(:project, :open) }
context "when invalid" do
it "returns an error if the project was not deleted" do
expect(Project).to receive(:find).with(project.id.to_s).and_call_original
expect(project).to receive(:destroy).and_return(false)
delete :destroy, id: project
end
end
end
測試要么返回“幸福的道路”,要么給我錯誤。 在這一刻:
Failure/Error: expect(project).to receive(:destroy).and_return(false)
(#<Project:0x007f87cf5d46a8>).destroy(*(any args))
expected: 1 time with any arguments
received: 0 times with any arguments
如果有人能指出正確的方向並說明如何模擬422,我將不勝感激!
您希望一開始就允許,而不是期望。 期望是斷言的一部分。
it "returns an error if the project was not deleted" do
allow(Project).to receive(:find).with(project.id.to_s).and_call_original
allow(project).to receive(:destroy).and_return(false)
delete :destroy, id: project
expect(Project).to have_received(:find)
expect(project).to have_received(:destroy)
end
我假設你是對的
allow(Project).to receive(:find).with(project.id.to_s).and_call_original
但我從未見過,我通常會
allow(Project).to receive(:find).with(project.id.to_s).and_return(project)
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