Rspec的测试模型空:假约束
问题描述:
我很困惑与测试(Rspec的)用空模型:虚假的一些属性:Rspec的测试模型空:假约束
当创建这些属性=零之一,新实例的新实例。有效?返回true,但如果我尝试保存它,它会在ActiveRecord :: NotNullViolation上返回错误消息。我明白它通过“模型验证”,但在“数据库验证”中失败。 然后测试我的模型的正确方法是什么?
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)>'
答
expect{FactoryGirl.create(:business_setting, business_id: nil)}.to raise_error
+0
超棒的Guy Yogev! – romss182
你的假设是正确的使用,你可以测试是否引发异常说。最终,您希望向模型添加验证,因此验证失败并保存返回false,而不是引发DB异常。 – Leito
谢谢莱托。使用FactoryGirl.build它不会引起任何错误,因为它不处理数据库(我猜)。使用FactoryGirl.create时,raise_error不会随着NotNullViolation之前引发而得到应答。 – romss182