每次运行此命令时,我都会一直得到wrong number of arguments (1 for 0)
。我究竟做错了什么?
describe Payment do
before { @payment = build_stubbed(:payment) }
subject { @payment }
shared_examples 'a foreign key' do |key|
it "can't be nil, blank, or not an int" do
[nil, "", " ", "a", 1.1].each do |value|
@payment.send key, value
@payment.should_not be_valid
end
end
end
describe "validation" do
describe "order_id" do
it_behaves_like 'a foreign key', :order_id
end
end
end
失败信息:
1) Payment validation order_id behaves like a foreign key can't be nil, blank, or not an int
Failure/Error: @payment.send(key, value)
ArgumentError:
wrong number of arguments (1 for 0)
Shared Example Group: "a foreign key" called from ./spec/models/payment_spec.rb:27
# ./spec/models/payment_spec.rb:18:in `block (4 levels) in <top (required)>'
# ./spec/models/payment_spec.rb:17:in `each'
# ./spec/models/payment_spec.rb:17:in `block (3 levels) in <top (required)>'
最佳答案
我没有正确提供设置方法:@payment.send(key, value)
相反,我需要使用@payment.send("#{key}=", value)
关于ruby-on-rails - 如何在RSpec中编写可重用的共享示例,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/16430461/