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test_iostream.rb
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test_iostream.rb
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require 'rubygems'
require 'test/unit'
require 'stringio'
require 'tempfile'
require 'shoulda'
require File.join(File.dirname(__FILE__), '..', 'lib', 'paperclip', 'iostream.rb')
class IOStreamTest < Test::Unit::TestCase
context "IOStream" do
should "be included in IO, File, Tempfile, and StringIO" do
[IO, File, Tempfile, StringIO].each do |klass|
assert klass.included_modules.include?(IOStream), "Not in #{klass}"
end
end
end
context "A file" do
setup do
@file = File.new(File.join(File.dirname(__FILE__), "fixtures", "5k.png"))
end
context "that is sent #stream_to" do
[["/tmp/iostream.string.test", File],
[Tempfile.new('iostream.test'), Tempfile]].each do |args|
context "and given a #{args[0].class.to_s}" do
setup do
assert @result = @file.stream_to(args[0])
end
should "return a #{args[1].to_s}" do
assert @result.is_a?(args[1])
end
should "contain the same data as the original file" do
@file.rewind; @result.rewind
assert_equal @file.read, @result.read
end
end
end
end
context "that is sent #to_tempfile" do
setup do
assert @tempfile = @file.to_tempfile
end
should "convert it to a Tempfile" do
assert @tempfile.is_a?(Tempfile)
end
should "have the Tempfile contain the same data as the file" do
@file.rewind; @tempfile.rewind
assert_equal @file.read, @tempfile.read
end
end
end
end