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describe :io_pos, :shared => true do
before :each do
@fname = tmp('test.txt')
File.open @fname, 'w' do |f| f.write "123" end
end
after :each do
rm_r @fname
end
it "gets the offset" do
File.open @fname do |f|
f.send(@method).should == 0
f.read 1
f.send(@method).should == 1
f.read 2
f.send(@method).should == 3
end
end
it "raises IOError on closed stream" do
lambda { IOSpecs.closed_io.send(@method) }.should raise_error(IOError)
end
it "resets #eof?" do
open @fname do |io|
io.read 1
io.read 1
io.send(@method)
io.eof?.should == false
end
end
end
describe :io_set_pos, :shared => true do
before :each do
@fname = tmp('test.txt')
File.open @fname, 'w' do |f| f.write "123" end
end
after :each do
rm_r @fname
end
it "sets the offset" do
File.open @fname do |f|
val1 = f.read 1
f.send @method, 0
f.read(1).should == val1
end
end
it "converts arguments to Integers" do
File.open @fname do |io|
o = mock("o")
o.should_receive(:to_int).and_return(1)
io.send @method, o
io.pos.should == 1
end
end
it "does not accept Bignums that don't fit in a C long" do
File.open @fname do |io|
lambda { io.send @method, 2**128 }.should raise_error(RangeError)
end
end
it "raises IOError on closed stream" do
lambda { IOSpecs.closed_io.send @method, 0 }.should raise_error(IOError)
end
end
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