testcase for https://github.com/rubygems/rubygems/issues/1280

.gitignore

*.gem

README

foo.gemspec

# foo.gemspec
require 'rubygems'
require 'rubygems/dependency_installer'

Gem::Specification.new do |spec|
  spec.name      = 'foo'
  spec.version   = '0.0.1'
  spec.author    = 'Daniel J. Berger'
  spec.license   = 'Artistic 2.0'
  spec.email     = '[email protected]'
  spec.homepage  = 'http://github.com/djberg96/foo'
  spec.summary   = 'Foo'
  spec.test_file = 'test_foo.rb'
  spec.files     = Dir['**/*'].reject{ |f| f.include?('git') }

  installer = Gem::DependencyInstaller.new
  installer.install 'win32-ipc'

  spec.extra_rdoc_files  = ['README']

  spec.description = "Test spec for general futzing"
end

test.sh

#!/bin/sh

rm -f foo-0.0.1.gem
gem build foo.gemspec

test_foo.rb

# ...