[英]wrong number of arguments ruby rspec
我正在尝试使用rspec为我的代码编写单元测试。 我不断收到“参数数量错误”错误:
class MyClass
attr_accessor :env, :company,:size, :role, :number_of_hosts,:visability
def initialize(env, company, size, role, number_of_hosts, visability)
@env, @company, @size, @role, @number_of_hosts, @visability = env, company, size, role, number_of_hosts, visability
end
end
这是我的测试:
require_relative "../lib/MyClass.rb"
describe MyClass do
it "has an environment" do
MyClass.new("environment").env.should respond_to :env
end
it "has a company" do
MyClass.new("company").company.should respond_to :company
end
...
当我运行rspec时,我得到:
1) MyClass has an environment
Failure/Error: MyClass.new("environment").env.should respond_to :env
ArgumentError:
wrong number of arguments (1 for 6)
# ./lib/MyClass.rb:4:in `initialize'
# ./spec/MyClass_spec.rb:5:in `new'
# ./spec/MyClass_spec.rb:5:in `block (2 levels) in <top (required)>'
...
我想念什么?
编辑
塞尔吉奥帮助了...但是
塞尔吉奥的答案奏效了……尽管我还有一个问题:
给定班级:
class Team
attr_accessor :name, :players
def initialize(name, players = [])
raise Exception unless players.is_a? Array
@name = name
raise Exception if @name && has_bad_name
@players = players
end
def has_bad_name
list_of_words = %w{crappy bad lousy}
list_of_words - @name.downcase.split(" ") != list_of_words
end
def favored?
@players.include? "George Clooney"
end
end
和规格...
require_relative "../lib/team.rb"
describe Team do
it "has a name" do
Team.new("random name").should respond_to :name
end
it "has a list of players" do
Team.new("random name").players.should be_kind_of Array
end
...
测试通过,没有相同的错误...(工作正常:Team.new(“ random name”))
有什么解释吗?
这是错误MyClass.new("environment")
。 如您所定义的def initialize(env, company, size, role, number_of_hosts, visability)
。 因此,在调用MyClass#new
方法时应传递6
参数。 但是实际上,您只会传递一个"environment"
。 因此,您得到了合法的错误- 错误的参数数量(1表示6) 。
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