我正在尝试按照指南on code.tuts继续收到错误。
这是我的图书馆规范:
require 'spec_helper'
describe Library do
before :all do
lib_arr = [
Book.new("JavaScript: The Good Parts", "Douglas Crockford", :development),
Book.new("Dont Make me Think", "Steve Krug", :usability),
]
File.open "books.yml", "w" do |f|
f.write YAML::dump lib_arr
end
end
before :each do
@lib = Library.new "books.yml"
end
describe "#new" do
context "with no parameters" do
it "has no book" do
lib = Library.new
expect(lib).to have(0).books
end
end
context "with a yaml file name parameters" do
it "has two books" do
expect(@lib).to_have(0).books
end
end
end
it "returns all the books in a given category" do
expect(@lib.get_books_in_category(:development).length).to eql 1
end
it "accepts new books" do
@lib.add_book(Book.new("Designing for the Web", "Mark Boulton", :design))
expect(@lib.get_book("Designing for the Web")).to be_an_instance_of Book
end
it "saves the library" do
books = @lib.books.map { |book| book.title}
@lib.save
lib2 = Library.new 'books.yml'
books2 = lib2.books.map { |book| book.title }
expect(books).to eql books2
end
end
我得到have
未定义。我发现这是我的台词
expect(@lib).to have(0).books
expect(lib).to have(0).books
我的语法过时了吗?我用谷歌搜索,我找不到它。
答案 0 :(得分:43)
have
/ have_exactly
,have_at_least
和have_at_most
匹配器已从RSpec 3中移除。它们现在位于单独的rspec-collection_matchers gem中。
或者,正如zishe所说,您可以使用eq
代替have
/ have_exactly
而不是be >=
代替{{1},而不是安装宝石}和have_at_least
代替be <=
。
来源:http://myronmars.to/n/dev-blog/2014/05/notable-changes-in-rspec-3