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我很困惑與測試(Rspec的)用空模型:虛假的一些屬性:Rspec的測試模型空:假約束
當創建這些屬性=零之一,新實例的新實例。有效?返回true,但如果我嘗試保存它,它會在ActiveRecord :: NotNullViolation上返回錯誤消息。我明白它通過「模型驗證」,但在「數據庫驗證」中失敗。 然後測試我的模型的正確方法是什麼?
RSpec.describe BusinessSetting, type: :model do
# before :each do
# @business_setting = FactoryGirl.create(:business_setting)
# end
it "has a valid factory" do
expect(FactoryGirl.create(:business_setting)).to be_valid
end
it "is invalid without a business_id" do
expect(FactoryGirl.create(:business_setting, business_id:
nil)).not_to be_valid
end
it "is invalid without a bot_token" do
expect(FactoryGirl.build(:business_setting, bot_token: nil)).to
raise_error
end
end
Failures:
1) BusinessSetting is invalid without a business_id
Failure/Error: expect(FactoryGirl.create(:business_setting, business_id: nil)).to raise_error
ActiveRecord::NotNullViolation:
Mysql2::Error: Field 'business_id' doesn't have a default value: INSERT INTO `business_settings` (`bot_token`, `employee_user_id`, `created_at`, `updated_at`, `bill_regex`, `email`, `store_code`, `name`, `description`) VALUES ('516dbe4b-9a54-47e7-be7f-9110703589e6', 25899, '2017-10-19 17:42:18', '2017-10-19 17:42:18', '^F947\\d{7}$', '[email protected]', '947', 'Nom du magasin', 'Description du magasin')
# ./spec/models/business_setting_spec.rb:14:in `block (2 levels) in <top (required)>'
# ------------------
# --- Caused by: ---
# Mysql2::Error:
# Field 'business_id' doesn't have a default value
# ./spec/models/business_setting_spec.rb:14:in `block (2 levels) in <top (required)>'
2) BusinessSetting is invalid without a bot_token
Failure/Error: expect(FactoryGirl.build(:business_setting, bot_token: nil)).to raise_error
expected Exception but was not given a block
# ./spec/models/business_setting_spec.rb:18:in `block (2 levels) in <top (required)>'
你的假設是正確的使用,你可以測試是否引發異常說。最終,您希望向模型添加驗證,因此驗證失敗並保存返回false,而不是引發DB異常。 – Leito
謝謝萊託。使用FactoryGirl.build它不會引起任何錯誤,因爲它不處理數據庫(我猜)。使用FactoryGirl.create時,raise_error不會隨着NotNullViolation之前引發而得到應答。 – romss182