Add failing request spec with redirect
user
```ruby
require 'helper'

describe Gems::Request do
  after do
    Gems.reset
  end

  describe "#get with redirect" do
    before do
      # request_uri = URI.parse("https://rubygems.org/api/v1/dependencies?gems=rails,thor")
      response_body = %q(<html>\r\n<head><title>302 Found</title></head>\r\n<body bgcolor=\"white\">\r\n<center><h1>302 Found</h1></center>\r\n<hr><center>nginx</center>\r\n</body>\r\n</html>\r\n)
      response_code = "302"
      response_location = "https://bundler.rubygems.org/api/v1/dependencies?gems=rails,thor"

      stub_get("/api/v1/dependencies").
        with(:query => {"gems" => "rails,thor"}).
        to_return(:body => response_body, :headers => {:code => response_code, :location => response_location})
    end
    it "returns an array of hashes for all versions of given gems" do
      expect {
        dependencies = Gems.dependencies 'rails', 'thor'
      }.not_to raise_error(TypeError)
      expect(a_get("/api/v1/dependencies").with(:query => {"gems" => "rails,thor"})).to have_been_made
      expect(dependencies.first[:number]).to eq "3.0.9"
    end
  end

end
```
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