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44 lines
1.1 KiB
Ruby
44 lines
1.1 KiB
Ruby
# -*- encoding: utf-8 -*-
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require_relative '../../spec_helper'
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require 'stringio'
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require_relative 'shared/getc'
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# This method is added by io/console on require.
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describe "StringIO#getch" do
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require 'io/console'
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it_behaves_like :stringio_getc, :getch
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it "returns the character at the current position" do
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io = StringIO.new("example")
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io.getch.should == ?e
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io.getch.should == ?x
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io.getch.should == ?a
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end
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it "increments #pos by the byte size of the character in multibyte strings" do
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io = StringIO.new("föóbar")
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io.getch; io.pos.should == 1 # "f" has byte size 1
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io.getch; io.pos.should == 3 # "ö" has byte size 2
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io.getch; io.pos.should == 5 # "ó" has byte size 2
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io.getch; io.pos.should == 6 # "b" has byte size 1
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end
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it "returns nil at the end of the string" do
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# empty string case
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io = StringIO.new("")
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io.getch.should == nil
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io.getch.should == nil
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# non-empty string case
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io = StringIO.new("a")
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io.getch # skip one
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io.getch.should == nil
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end
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describe "StringIO#getch when self is not readable" do
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it_behaves_like :stringio_getc_not_readable, :getch
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end
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end
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