RSpec:未定义的方法'assert#u difference';对于(命名者)
我在谷歌上搜索了这个错误,但没有找到可以修复的。RSpec:未定义的方法'assert#u difference';对于(命名者),rspec,rspec2,rspec-rails,Rspec,Rspec2,Rspec Rails,我在谷歌上搜索了这个错误,但没有找到可以修复的。 请帮帮我。谢谢:)确保在spec/spec\u helper.rb中包含AssertDifference: context 'with event_type is available create event' do let(:event_type) { EventType.where( name: 'visit_site').first } assert_difference 'Event.count' do Event.fir
请帮帮我。谢谢:)确保在spec/spec\u helper.rb中包含AssertDifference:
context 'with event_type is available create event' do
let(:event_type) { EventType.where( name: 'visit_site').first }
assert_difference 'Event.count' do
Event.fire_event(event_type, @sponge,{})
end
end
并将断言放入it
块中:
RSpec.configure do |config|
...
config.include AssertDifference
end
我最好用英文重写一下 这在RSpec3.x中肯定是可行的,但在旧版本中也可能如此
it 'event count should change' do
assert_difference 'Event.count' do
...
end
end
如果您使用的是RSPEC,那么“更改”肯定是一个不错的选择。这里有两个示例,一个是否定的,一个是肯定的,这样您就可以了解语法:
context 'with event_type is available create event' do
let(:event_type) { EventType.where( name: 'visit_site').first }
it "changes event counter" do
expect { Event.fire_event(event_type, @sponge,{}) }.to change { Event.count }
end
end # with event_type is available create event
如果您试图使用
ActiveSupport::Testing::Assertions
模块中的assert\u difference
与Rspec
,则只需在rails\u helper.rb
文件中插入以下代码即可
RSpec.describe "UsersSignups", type: :request do
describe "signing up with invalid information" do
it "should not work and should go back to the signup form" do
get signup_path
expect do
post users_path, user: {
first_name: "",
last_name: "miki",
email: "user@triculi",
password: "buajaja",
password_confirmation: "juababa"
}
end.to_not change{ User.count }
expect(response).to render_template(:new)
expect(response.body).to include('errors')
end
end
describe "signing up with valid information" do
it "should work and should redirect to user's show view" do
get signup_path
expect do
post_via_redirect users_path, user: {
first_name: "Julito",
last_name: "Triculi",
email: "triculito@mail.com",
password: "worldtriculi",
password_confirmation: "worldtriculi"
}
end.to change{ User.count }.from(0).to(1)
expect(response).to render_template(:show)
expect(flash[:success]).to_not be(nil)
end
end
我已经用Rails 5.2.0对此进行了测试。但是,我想这应该行得通
还有其他版本
it 'event count should change' do
assert_difference 'Event.count' do
...
end
end
看起来你在用Rspec的assert_差异gem,对吗?我认为您需要将其包装在
it
块中。我尝试将其放置在block it中,但仍然存在此错误噢,在添加“config.include AssertDifference”spec\u helper.rb:43:in`block(2层)in:`uninitialized constant AssertDifference(namererror)到您的gem文件中添加了gem'assert\u difference'吗?