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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../shared/pos', __FILE__)
describe "ARGF.pos" do
it_behaves_like :argf_pos, :pos
end
describe "ARGF.pos=" do
before :each do
@file1_name = fixture __FILE__, "file1.txt"
@file2_name = fixture __FILE__, "file2.txt"
@file1 = File.readlines @file1_name
@file2 = File.readlines @file2_name
end
after :each do
ARGF.close unless ARGF.closed?
end
# NOTE: this test assumes that fixtures files have two lines each
it "sets the correct position in files" do
argv [@file1_name, @file2_name] do
ARGF.pos = @file1.first.size
ARGF.gets.should == @file1.last
ARGF.pos = 0
ARGF.gets.should == @file1.first
# finish reading file1
ARGF.gets
ARGF.gets
ARGF.pos = 1
ARGF.gets.should == @file2.first[1..-1]
ARGF.pos = @file2.first.size + @file2.last.size - 1
ARGF.gets.should == @file2.last[-1,1]
ARGF.pos = 1000
ARGF.read.should == ""
end
end
end
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