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# -*- encoding: utf-8 -*-
describe :stringio_each_char, shared: true do
before :each do
@io = StringIO.new("xyz äöü")
end
it "yields each character code in turn" do
seen = []
@io.send(@method) { |c| seen << c }
seen.should == ["x", "y", "z", " ", "ä", "ö", "ü"]
end
it "returns self" do
@io.send(@method) {}.should equal(@io)
end
it "returns an Enumerator when passed no block" do
enum = @io.send(@method)
enum.instance_of?(Enumerator).should be_true
seen = []
enum.each { |c| seen << c }
seen.should == ["x", "y", "z", " ", "ä", "ö", "ü"]
end
end
describe :stringio_each_char_not_readable, shared: true do
it "raises an IOError" do
io = StringIO.new("xyz", "w")
-> { io.send(@method) { |b| b } }.should raise_error(IOError)
io = StringIO.new("xyz")
io.close_read
-> { io.send(@method) { |b| b } }.should raise_error(IOError)
end
end
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