119 lines
2.9 KiB
Ruby
119 lines
2.9 KiB
Ruby
|
require 'test/spec'
|
||
|
|
require 'stringio'
|
||
|
|
require 'rack/rewindable_input'
|
||
|
|
|
||
|
|
shared_context "a rewindable IO object" do
|
||
|
|
setup do
|
||
|
|
@rio = Rack::RewindableInput.new(@io)
|
||
|
|
end
|
||
|
|
|
||
|
|
teardown do
|
||
|
|
@rio.close
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should be able to handle to read()" do
|
||
|
|
@rio.read.should.equal "hello world"
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should be able to handle to read(nil)" do
|
||
|
|
@rio.read(nil).should.equal "hello world"
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should be able to handle to read(length)" do
|
||
|
|
@rio.read(1).should.equal "h"
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should be able to handle to read(length, buffer)" do
|
||
|
|
buffer = ""
|
||
|
|
result = @rio.read(1, buffer)
|
||
|
|
result.should.equal "h"
|
||
|
|
result.object_id.should.equal buffer.object_id
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should be able to handle to read(nil, buffer)" do
|
||
|
|
buffer = ""
|
||
|
|
result = @rio.read(nil, buffer)
|
||
|
|
result.should.equal "hello world"
|
||
|
|
result.object_id.should.equal buffer.object_id
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should rewind to the beginning when #rewind is called" do
|
||
|
|
@rio.read(1)
|
||
|
|
@rio.rewind
|
||
|
|
@rio.read.should.equal "hello world"
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should be able to handle gets" do
|
||
|
|
@rio.gets.should == "hello world"
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should be able to handle each" do
|
||
|
|
array = []
|
||
|
|
@rio.each do |data|
|
||
|
|
array << data
|
||
|
|
end
|
||
|
|
array.should.equal(["hello world"])
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should not buffer into a Tempfile if no data has been read yet" do
|
||
|
|
@rio.instance_variable_get(:@rewindable_io).should.be.nil
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should buffer into a Tempfile when data has been consumed for the first time" do
|
||
|
|
@rio.read(1)
|
||
|
|
tempfile = @rio.instance_variable_get(:@rewindable_io)
|
||
|
|
tempfile.should.not.be.nil
|
||
|
|
@rio.read(1)
|
||
|
|
tempfile2 = @rio.instance_variable_get(:@rewindable_io)
|
||
|
|
tempfile2.should.equal tempfile
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should close the underlying tempfile upon calling #close" do
|
||
|
|
@rio.read(1)
|
||
|
|
tempfile = @rio.instance_variable_get(:@rewindable_io)
|
||
|
|
@rio.close
|
||
|
|
tempfile.should.be.closed
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should be possibel to call #close when no data has been buffered yet" do
|
||
|
|
@rio.close
|
||
|
|
end
|
||
|
|
|
||
|
|
specify "should be possible to call #close multiple times" do
|
||
|
|
@rio.close
|
||
|
|
@rio.close
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
context "Rack::RewindableInput" do
|
||
|
|
context "given an IO object that is already rewindable" do
|
||
|
|
setup do
|
||
|
|
@io = StringIO.new("hello world")
|
||
|
|
end
|
||
|
|
|
||
|
|
it_should_behave_like "a rewindable IO object"
|
||
|
|
end
|
||
|
|
|
||
|
|
context "given an IO object that is not rewindable" do
|
||
|
|
setup do
|
||
|
|
@io = StringIO.new("hello world")
|
||
|
|
@io.instance_eval do
|
||
|
|
undef :rewind
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
it_should_behave_like "a rewindable IO object"
|
||
|
|
end
|
||
|
|
|
||
|
|
context "given an IO object whose rewind method raises Errno::ESPIPE" do
|
||
|
|
setup do
|
||
|
|
@io = StringIO.new("hello world")
|
||
|
|
def @io.rewind
|
||
|
|
raise Errno::ESPIPE, "You can't rewind this!"
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
it_should_behave_like "a rewindable IO object"
|
||
|
|
end
|
||
|
|
end
|