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describe :stringio_getc, :shared => true do
before(:each) do
@io = StringIO.new("example")
end
it "increases self's position by one" do
@io.send(@method)
@io.pos.should eql(1)
@io.send(@method)
@io.pos.should eql(2)
@io.send(@method)
@io.pos.should eql(3)
end
it "returns nil when called at the end of self" do
@io.pos = 7
@io.send(@method).should be_nil
@io.send(@method).should be_nil
@io.send(@method).should be_nil
end
it "does not increase self's position when called at the end of file" do
@io.pos = 7
@io.send(@method)
@io.pos.should eql(7)
@io.send(@method)
@io.pos.should eql(7)
end
end
describe :stringio_getc_not_readable, :shared => true do
it "raises an IOError" do
io = StringIO.new("xyz", "w")
lambda { io.send(@method) }.should raise_error(IOError)
io = StringIO.new("xyz")
io.close_read
lambda { io.send(@method) }.should raise_error(IOError)
end
end
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