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describe :argf_fileno, :shared => true do
before :each do
@file1 = fixture __FILE__, "file1.txt"
@file2 = fixture __FILE__, "file2.txt"
end
after :each do
ARGF.close unless ARGF.closed?
end
# NOTE: this test assumes that fixtures files have two lines each
it "returns the current file number on each file" do
argv [@file1, @file2] do
result = []
# returns first current file even when not yet open
result << ARGF.send(@method) while ARGF.gets
# returns last current file even when closed
result.map { |d| d.class }.should == [Fixnum, Fixnum, Fixnum, Fixnum]
end
end
it "raises an ArgumentError when called on a closed stream" do
argv [@file1] do
ARGF.read
lambda { ARGF.send(@method) }.should raise_error(ArgumentError)
end
end
end
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