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# -*- encoding: US-ASCII -*-
require File.expand_path('../../../../spec_helper', __FILE__)
require 'zlib'
describe "Zlib::Inflate#<<" do
before :all do
@foo_deflated = "x\234K\313\317\a\000\002\202\001E"
end
before :each do
@z = Zlib::Inflate.new
end
after :each do
@z.close unless @z.closed?
end
it "appends data to the input stream" do
@z << @foo_deflated
@z.finish.should == 'foo'
end
it "treats nil argument as the end of compressed data" do
@z = Zlib::Inflate.new
@z << @foo_deflated << nil
@z.finish.should == 'foo'
end
it "just passes through the data after nil argument" do
@z = Zlib::Inflate.new
@z << @foo_deflated << nil
@z << "-after_nil_data"
@z.finish.should == 'foo-after_nil_data'
end
it "properly handles data in chunks" do
# add bytes, one by one
@foo_deflated.each_byte { |d| @z << d.chr}
@z.finish.should == "foo"
end
it "properly handles incomplete data" do
# add bytes, one by one
@foo_deflated[0, 5].each_byte { |d| @z << d.chr}
lambda { @z.finish }.should raise_error(Zlib::BufError)
end
it "properly handles excessive data, byte-by-byte" do
# add bytes, one by one
data = @foo_deflated * 2
data.each_byte { |d| @z << d.chr}
@z.finish.should == "foo" + @foo_deflated
end
it "properly handles excessive data, in one go" do
# add bytes, one by one
data = @foo_deflated * 2
@z << data
@z.finish.should == "foo" + @foo_deflated
end
end
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