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require_relative '../../spec_helper'
require "stringio"
require_relative 'shared/read'
require_relative 'shared/sysread'
describe "StringIO#read_nonblock when passed length, buffer" do
it_behaves_like :stringio_read, :read_nonblock
it "accepts :exception option" do
io = StringIO.new("example")
io.read_nonblock(3, buffer = +"", exception: true)
buffer.should == "exa"
end
end
describe "StringIO#read_nonblock when passed length" do
it_behaves_like :stringio_read_length, :read_nonblock
it "accepts :exception option" do
io = StringIO.new("example")
io.read_nonblock(3, exception: true).should == "exa"
end
end
describe "StringIO#read_nonblock when passed nil" do
it_behaves_like :stringio_read_nil, :read_nonblock
end
describe "StringIO#read_nonblock when passed length" do
it_behaves_like :stringio_sysread_length, :read_nonblock
end
describe "StringIO#read_nonblock" do
it "accepts an exception option" do
stringio = StringIO.new('foo')
stringio.read_nonblock(3, exception: false).should == 'foo'
end
context "when exception option is set to false" do
context "when the end is reached" do
it "returns nil" do
stringio = StringIO.new(+'')
stringio << "hello"
stringio.rewind
stringio.read_nonblock(5).should == "hello"
stringio.read_nonblock(5, exception: false).should be_nil
end
end
end
end
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