Should repeat a number of times

Question

Here is simon_says_spec.rb

require simon_says
     describe \"repeat\" do
        it \"should repeat\" do
          repeat(\"hello\").should == \"hello hello         


        

Answer 1

In the below part, you passed only 1 argument instead 2.

describe "repeat" do
        it "should repeat" do
          repeat("hello").should == "hello hello"
          #        ^ why only 1 argument ?
        end

As per your code, it should be repeat("hello", 2).should == "hello hello".

As per commented hints, you can write also :-

def repeat(x, y = 2)
   y.times { print x + ‘ ‘ }
end

Now, the test code you wrote, will work without error, with above modified method definition.

require simon_says

describe "repeat" do
  it "should repeat" do
    # here you are not passsing the second argument. But *repeat* method has `2`
    # as its default value of the second argument. So no issue will be here.
    repeat("hello").should == "hello hello"
  end

  it "should repeat a number of times" do
    repeat("hello", 3).should == "hello hello hello"
  end
end

Read this default argument to know, how default argument works in Ruby.