зеркало из https://github.com/github/ruby.git
757 строки
20 KiB
Ruby
757 строки
20 KiB
Ruby
# frozen_string_literal: false
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require 'test/unit'
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require 'stringio'
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require "rbconfig/sizeof"
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require_relative '../ruby/ut_eof'
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class TestStringIO < Test::Unit::TestCase
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include TestEOF
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def open_file(content)
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f = StringIO.new(content)
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yield f
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end
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alias open_file_rw open_file
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include TestEOF::Seek
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def test_initialize
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assert_kind_of StringIO, StringIO.new
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assert_kind_of StringIO, StringIO.new('str')
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assert_kind_of StringIO, StringIO.new('str', 'r+')
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assert_raise(ArgumentError) { StringIO.new('', 'x') }
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assert_raise(ArgumentError) { StringIO.new('', 'rx') }
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assert_raise(ArgumentError) { StringIO.new('', 'rbt') }
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assert_raise(TypeError) { StringIO.new(nil) }
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assert_raise(TypeError) { StringIO.new('str', nil) }
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o = Object.new
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def o.to_str
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nil
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end
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assert_raise(TypeError) { StringIO.new(o) }
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def o.to_str
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'str'
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end
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assert_kind_of StringIO, StringIO.new(o)
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end
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def test_truncate
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io = StringIO.new("")
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io.puts "abc"
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io.truncate(0)
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io.puts "def"
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assert_equal("\0\0\0\0def\n", io.string, "[ruby-dev:24190]")
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assert_raise(Errno::EINVAL) { io.truncate(-1) }
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io.truncate(10)
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assert_equal("\0\0\0\0def\n\0\0", io.string)
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end
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def test_seek_beyond_eof
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io = StringIO.new
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n = 100
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io.seek(n)
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io.print "last"
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assert_equal("\0" * n + "last", io.string, "[ruby-dev:24194]")
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end
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def test_overwrite
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stringio = StringIO.new
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responses = ['', 'just another ruby', 'hacker']
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responses.each do |resp|
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stringio.puts(resp)
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stringio.rewind
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end
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assert_equal("hacker\nother ruby\n", stringio.string, "[ruby-core:3836]")
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end
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def test_gets
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assert_equal(nil, StringIO.new("").gets)
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assert_equal("\n", StringIO.new("\n").gets)
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assert_equal("a\n", StringIO.new("a\n").gets)
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assert_equal("a\n", StringIO.new("a\nb\n").gets)
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assert_equal("a", StringIO.new("a").gets)
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assert_equal("a\n", StringIO.new("a\nb").gets)
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assert_equal("abc\n", StringIO.new("abc\n\ndef\n").gets)
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assert_equal("abc\n\ndef\n", StringIO.new("abc\n\ndef\n").gets(nil))
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assert_equal("abc\n\n", StringIO.new("abc\n\ndef\n").gets(""))
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stringio = StringIO.new("abc\n\ndef\n")
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assert_equal("abc\n\n", stringio.gets(""))
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assert_equal("def\n", stringio.gets(""))
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assert_raise(TypeError){StringIO.new("").gets(1, 1)}
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assert_nothing_raised {StringIO.new("").gets(nil, nil)}
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end
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def test_gets_chomp
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assert_equal(nil, StringIO.new("").gets(chomp: true))
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assert_equal("", StringIO.new("\n").gets(chomp: true))
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assert_equal("a", StringIO.new("a\n").gets(chomp: true))
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assert_equal("a", StringIO.new("a\nb\n").gets(chomp: true))
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assert_equal("a", StringIO.new("a").gets(chomp: true))
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assert_equal("a", StringIO.new("a\nb").gets(chomp: true))
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assert_equal("abc", StringIO.new("abc\n\ndef\n").gets(chomp: true))
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assert_equal("abc\n\ndef", StringIO.new("abc\n\ndef\n").gets(nil, chomp: true))
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assert_equal("abc\n", StringIO.new("abc\n\ndef\n").gets("", chomp: true))
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stringio = StringIO.new("abc\n\ndef\n")
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assert_equal("abc\n", stringio.gets("", chomp: true))
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assert_equal("def", stringio.gets("", chomp: true))
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end
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def test_gets_chomp_eol
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assert_equal(nil, StringIO.new("").gets(chomp: true))
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assert_equal("", StringIO.new("\r\n").gets(chomp: true))
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assert_equal("a", StringIO.new("a\r\n").gets(chomp: true))
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assert_equal("a", StringIO.new("a\r\nb\r\n").gets(chomp: true))
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assert_equal("a", StringIO.new("a").gets(chomp: true))
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assert_equal("a", StringIO.new("a\r\nb").gets(chomp: true))
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assert_equal("abc", StringIO.new("abc\r\n\r\ndef\r\n").gets(chomp: true))
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assert_equal("abc\r\n\r\ndef", StringIO.new("abc\r\n\r\ndef\r\n").gets(nil, chomp: true))
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assert_equal("abc\r\n", StringIO.new("abc\r\n\r\ndef\r\n").gets("", chomp: true))
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stringio = StringIO.new("abc\r\n\r\ndef\r\n")
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assert_equal("abc\r\n", stringio.gets("", chomp: true))
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assert_equal("def", stringio.gets("", chomp: true))
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end
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def test_readlines
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assert_equal([], StringIO.new("").readlines)
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assert_equal(["\n"], StringIO.new("\n").readlines)
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assert_equal(["a\n"], StringIO.new("a\n").readlines)
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assert_equal(["a\n", "b\n"], StringIO.new("a\nb\n").readlines)
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assert_equal(["a"], StringIO.new("a").readlines)
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assert_equal(["a\n", "b"], StringIO.new("a\nb").readlines)
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assert_equal(["abc\n", "\n", "def\n"], StringIO.new("abc\n\ndef\n").readlines)
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assert_equal(["abc\n\ndef\n"], StringIO.new("abc\n\ndef\n").readlines(nil), "[ruby-dev:34591]")
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assert_equal(["abc\n\n", "def\n"], StringIO.new("abc\n\ndef\n").readlines(""))
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end
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def test_write
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s = ""
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f = StringIO.new(s, "w")
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f.print("foo")
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f.close
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assert_equal("foo", s)
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f = StringIO.new(s, File::WRONLY)
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f.print("bar")
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f.close
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assert_equal("bar", s)
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f = StringIO.new(s, "a")
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o = Object.new
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def o.to_s; "baz"; end
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f.print(o)
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f.close
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assert_equal("barbaz", s)
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ensure
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f.close unless f.closed?
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end
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def test_write_nonblock_no_exceptions
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s = ""
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f = StringIO.new(s, "w")
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f.write_nonblock("foo", exception: false)
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f.close
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assert_equal("foo", s)
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end
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def test_write_nonblock
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s = ""
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f = StringIO.new(s, "w")
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f.write_nonblock("foo")
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f.close
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assert_equal("foo", s)
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f = StringIO.new(s, File::WRONLY)
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f.write_nonblock("bar")
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f.close
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assert_equal("bar", s)
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f = StringIO.new(s, "a")
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o = Object.new
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def o.to_s; "baz"; end
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f.write_nonblock(o)
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f.close
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assert_equal("barbaz", s)
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ensure
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f.close unless f.closed?
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end
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def test_write_infection
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bug9769 = '[ruby-dev:48118] [Bug #9769]'
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s = "".untaint
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f = StringIO.new(s, "w")
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f.print("bar".taint)
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f.close
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assert_predicate(s, :tainted?, bug9769)
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ensure
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f.close unless f.closed?
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end
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def test_write_encoding
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s = "".force_encoding(Encoding::UTF_8)
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f = StringIO.new(s)
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f.print("\u{3053 3093 306b 3061 306f ff01}".b)
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assert_equal(Encoding::UTF_8, s.encoding, "honor the original encoding over ASCII-8BIT")
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end
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def test_write_integer_overflow
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long_max = (1 << (RbConfig::SIZEOF["long"] * 8 - 1)) - 1
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f = StringIO.new
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f.pos = long_max
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assert_raise(ArgumentError) {
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f.write("pos + len overflows")
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}
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end
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def test_set_encoding
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bug10285 = '[ruby-core:65240] [Bug #10285]'
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f = StringIO.new()
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f.set_encoding(Encoding::ASCII_8BIT)
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f.write("quz \x83 mat".b)
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s = "foo \x97 bar".force_encoding(Encoding::WINDOWS_1252)
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assert_nothing_raised(Encoding::CompatibilityError, bug10285) {
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f.write(s)
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}
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assert_equal(Encoding::ASCII_8BIT, f.string.encoding, bug10285)
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bug11827 = '[ruby-core:72189] [Bug #11827]'
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f = StringIO.new("foo\x83".freeze)
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assert_nothing_raised(RuntimeError, bug11827) {
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f.set_encoding(Encoding::ASCII_8BIT)
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}
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assert_equal("foo\x83".b, f.gets)
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end
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def test_mode_error
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f = StringIO.new("", "r")
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assert_raise(IOError) { f.write("foo") }
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f = StringIO.new("", "w")
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assert_raise(IOError) { f.read }
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assert_raise(Errno::EACCES) { StringIO.new("".freeze, "w") }
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s = ""
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f = StringIO.new(s, "w")
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s.freeze
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assert_raise(IOError) { f.write("foo") }
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assert_raise(IOError) { StringIO.allocate.read }
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ensure
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f.close unless f.closed?
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end
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def test_open
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s = ""
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StringIO.open("foo") {|f| s = f.read }
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assert_equal("foo", s)
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end
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def test_isatty
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assert_equal(false, StringIO.new("").isatty)
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end
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def test_fsync
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assert_equal(0, StringIO.new("").fsync)
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end
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def test_sync
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assert_equal(true, StringIO.new("").sync)
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assert_equal(false, StringIO.new("").sync = false)
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end
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def test_set_fcntl
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assert_raise(NotImplementedError) { StringIO.new("").fcntl }
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end
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def test_close
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f = StringIO.new("")
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f.close
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assert_nil(f.close)
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f = StringIO.new("")
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f.close_read
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f.close_write
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assert_nil(f.close)
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ensure
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f.close unless f.closed?
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end
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def test_close_read
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f = StringIO.new("")
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f.close_read
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assert_raise(IOError) { f.read }
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assert_nothing_raised(IOError) {f.close_read}
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f.close
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f = StringIO.new("", "w")
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assert_raise(IOError) { f.close_read }
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f.close
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ensure
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f.close unless f.closed?
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end
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def test_close_write
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f = StringIO.new("")
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f.close_write
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assert_raise(IOError) { f.write("foo") }
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assert_nothing_raised(IOError) {f.close_write}
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f.close
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f = StringIO.new("", "r")
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assert_raise(IOError) { f.close_write }
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f.close
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ensure
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f.close unless f.closed?
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end
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def test_closed
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f = StringIO.new("")
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assert_equal(false, f.closed?)
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f.close
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assert_equal(true, f.closed?)
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ensure
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f.close unless f.closed?
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end
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def test_closed_read
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f = StringIO.new("")
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assert_equal(false, f.closed_read?)
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f.close_write
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assert_equal(false, f.closed_read?)
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f.close_read
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assert_equal(true, f.closed_read?)
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ensure
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f.close unless f.closed?
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end
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def test_closed_write
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f = StringIO.new("")
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assert_equal(false, f.closed_write?)
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f.close_read
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assert_equal(false, f.closed_write?)
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f.close_write
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assert_equal(true, f.closed_write?)
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ensure
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f.close unless f.closed?
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end
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def test_dup
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f1 = StringIO.new("1234")
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assert_equal("1", f1.getc)
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f2 = f1.dup
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assert_equal("2", f2.getc)
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assert_equal("3", f1.getc)
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assert_equal("4", f2.getc)
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assert_equal(nil, f1.getc)
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assert_equal(true, f2.eof?)
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f1.close
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assert_equal(false, f2.closed?, '[ruby-core:48443]')
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ensure
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f1.close unless f1.closed?
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f2.close unless f2.closed?
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end
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def test_lineno
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f = StringIO.new("foo\nbar\nbaz\n")
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assert_equal([0, "foo\n"], [f.lineno, f.gets])
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assert_equal([1, "bar\n"], [f.lineno, f.gets])
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f.lineno = 1000
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assert_equal([1000, "baz\n"], [f.lineno, f.gets])
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assert_equal([1001, nil], [f.lineno, f.gets])
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ensure
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f.close unless f.closed?
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end
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def test_pos
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f = StringIO.new("foo\nbar\nbaz\n")
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assert_equal([0, "foo\n"], [f.pos, f.gets])
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assert_equal([4, "bar\n"], [f.pos, f.gets])
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assert_raise(Errno::EINVAL) { f.pos = -1 }
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f.pos = 1
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assert_equal([1, "oo\n"], [f.pos, f.gets])
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assert_equal([4, "bar\n"], [f.pos, f.gets])
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assert_equal([8, "baz\n"], [f.pos, f.gets])
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assert_equal([12, nil], [f.pos, f.gets])
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ensure
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f.close unless f.closed?
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end
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def test_reopen
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f = StringIO.new("foo\nbar\nbaz\n")
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assert_equal("foo\n", f.gets)
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f.reopen("qux\nquux\nquuux\n")
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assert_equal("qux\n", f.gets)
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f2 = StringIO.new("")
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f2.reopen(f)
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assert_equal("quux\n", f2.gets)
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ensure
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f.close unless f.closed?
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end
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def test_seek
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f = StringIO.new("1234")
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assert_raise(Errno::EINVAL) { f.seek(-1) }
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f.seek(-1, 2)
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assert_equal("4", f.getc)
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assert_raise(Errno::EINVAL) { f.seek(1, 3) }
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f.close
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assert_raise(IOError) { f.seek(0) }
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ensure
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f.close unless f.closed?
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end
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def test_each_byte
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f = StringIO.new("1234")
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a = []
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f.each_byte {|c| a << c }
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assert_equal(%w(1 2 3 4).map {|c| c.ord }, a)
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ensure
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f.close unless f.closed?
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end
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def test_getbyte
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f = StringIO.new("1234")
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assert_equal("1".ord, f.getbyte)
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assert_equal("2".ord, f.getbyte)
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assert_equal("3".ord, f.getbyte)
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assert_equal("4".ord, f.getbyte)
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assert_equal(nil, f.getbyte)
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ensure
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f.close unless f.closed?
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end
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def test_ungetbyte
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s = "foo\nbar\n"
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t = StringIO.new(s, "r")
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t.ungetbyte(0x41)
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assert_equal(0x41, t.getbyte)
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t.ungetbyte("qux")
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assert_equal("quxfoo\n", t.gets)
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t.set_encoding("utf-8")
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t.ungetbyte(0x89)
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t.ungetbyte(0x8e)
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t.ungetbyte("\xe7")
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t.ungetbyte("\xe7\xb4\x85")
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assert_equal("\u7d05\u7389bar\n", t.gets)
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assert_equal("q\u7d05\u7389bar\n", s)
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t.pos = 1
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t.ungetbyte("\u{30eb 30d3 30fc}")
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assert_equal(0, t.pos)
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assert_equal("\u{30eb 30d3 30fc}\u7d05\u7389bar\n", s)
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end
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def test_ungetc
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s = "1234"
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f = StringIO.new(s, "r")
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assert_nothing_raised { f.ungetc("x") }
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assert_equal("x", f.getc) # bug? -> it's a feature from 1.9.
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assert_equal("1", f.getc)
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s = "1234"
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f = StringIO.new(s, "r")
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assert_equal("1", f.getc)
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f.ungetc("y".ord)
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assert_equal("y", f.getc)
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assert_equal("2", f.getc)
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ensure
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f.close unless f.closed?
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end
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def test_readchar
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f = StringIO.new("1234")
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a = ""
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assert_raise(EOFError) { loop { a << f.readchar } }
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assert_equal("1234", a)
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end
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def test_readbyte
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f = StringIO.new("1234")
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a = []
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assert_raise(EOFError) { loop { a << f.readbyte } }
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assert_equal("1234".unpack("C*"), a)
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end
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def test_each_char
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f = StringIO.new("1234")
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assert_equal(%w(1 2 3 4), f.each_char.to_a)
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end
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def test_each_codepoint
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f = StringIO.new("1234")
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assert_equal([49, 50, 51, 52], f.each_codepoint.to_a)
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end
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def test_gets2
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|
f = StringIO.new("foo\nbar\nbaz\n")
|
|
assert_equal("fo", f.gets(2))
|
|
|
|
o = Object.new
|
|
def o.to_str; "z"; end
|
|
assert_equal("o\nbar\nbaz", f.gets(o))
|
|
|
|
f = StringIO.new("foo\nbar\nbaz\n")
|
|
assert_equal("foo\nbar\nbaz", f.gets("az"))
|
|
f = StringIO.new("a" * 10000 + "zz!")
|
|
assert_equal("a" * 10000 + "zz", f.gets("zz"))
|
|
f = StringIO.new("a" * 10000 + "zz!")
|
|
assert_equal("a" * 10000 + "zz!", f.gets("zzz"))
|
|
|
|
bug4112 = '[ruby-dev:42674]'
|
|
["a".encode("utf-16be"), "\u3042"].each do |s|
|
|
assert_equal(s, StringIO.new(s).gets(1), bug4112)
|
|
assert_equal(s, StringIO.new(s).gets(nil, 1), bug4112)
|
|
end
|
|
end
|
|
|
|
def test_each
|
|
f = StringIO.new("foo\nbar\nbaz\n")
|
|
assert_equal(["foo\n", "bar\n", "baz\n"], f.each.to_a)
|
|
f.rewind
|
|
assert_equal(["foo", "bar", "baz"], f.each(chomp: true).to_a)
|
|
f = StringIO.new("foo\nbar\n\nbaz\n")
|
|
assert_equal(["foo\nbar\n\n", "baz\n"], f.each("").to_a)
|
|
f.rewind
|
|
assert_equal(["foo\nbar\n", "baz"], f.each("", chomp: true).to_a)
|
|
|
|
f = StringIO.new("foo\r\nbar\r\n\r\nbaz\r\n")
|
|
assert_equal(["foo\r\nbar\r\n\r\n", "baz\r\n"], f.each("").to_a)
|
|
f.rewind
|
|
assert_equal(["foo\r\nbar\r\n", "baz"], f.each("", chomp: true).to_a)
|
|
end
|
|
|
|
def test_putc
|
|
s = ""
|
|
f = StringIO.new(s, "w")
|
|
f.putc("1")
|
|
f.putc("2")
|
|
f.putc("3")
|
|
f.close
|
|
assert_equal("123", s)
|
|
|
|
s = "foo"
|
|
f = StringIO.new(s, "a")
|
|
f.putc("1")
|
|
f.putc("2")
|
|
f.putc("3")
|
|
f.close
|
|
assert_equal("foo123", s)
|
|
end
|
|
|
|
def test_putc_nonascii
|
|
s = ""
|
|
f = StringIO.new(s, "w")
|
|
f.putc("\u{3042}")
|
|
f.putc(0x3044)
|
|
f.close
|
|
assert_equal("\u{3042}D", s)
|
|
|
|
s = "foo"
|
|
f = StringIO.new(s, "a")
|
|
f.putc("\u{3042}")
|
|
f.putc(0x3044)
|
|
f.close
|
|
assert_equal("foo\u{3042}D", s)
|
|
end
|
|
|
|
def test_read
|
|
f = StringIO.new("\u3042\u3044")
|
|
assert_raise(ArgumentError) { f.read(-1) }
|
|
assert_raise(ArgumentError) { f.read(1, 2, 3) }
|
|
assert_equal("\u3042\u3044", f.read)
|
|
assert_nil(f.read(1))
|
|
f.rewind
|
|
assert_equal("\u3042\u3044".force_encoding(Encoding::ASCII_8BIT), f.read(f.size))
|
|
|
|
bug5207 = '[ruby-core:39026]'
|
|
f.rewind
|
|
assert_equal("\u3042\u3044", f.read(nil, nil), bug5207)
|
|
f.rewind
|
|
s = ""
|
|
f.read(nil, s)
|
|
assert_equal("\u3042\u3044", s, bug5207)
|
|
f.rewind
|
|
# not empty buffer
|
|
s = "0123456789"
|
|
f.read(nil, s)
|
|
assert_equal("\u3042\u3044", s)
|
|
end
|
|
|
|
def test_readpartial
|
|
f = StringIO.new("\u3042\u3044")
|
|
assert_raise(ArgumentError) { f.readpartial(-1) }
|
|
assert_raise(ArgumentError) { f.readpartial(1, 2, 3) }
|
|
assert_equal("\u3042\u3044".force_encoding(Encoding::ASCII_8BIT), f.readpartial(100))
|
|
f.rewind
|
|
assert_equal("\u3042\u3044".force_encoding(Encoding::ASCII_8BIT), f.readpartial(f.size))
|
|
f.rewind
|
|
# not empty buffer
|
|
s = '0123456789'
|
|
assert_equal("\u3042\u3044".force_encoding(Encoding::ASCII_8BIT), f.readpartial(f.size, s))
|
|
end
|
|
|
|
def test_read_nonblock
|
|
f = StringIO.new("\u3042\u3044")
|
|
assert_raise(ArgumentError) { f.read_nonblock(-1) }
|
|
assert_raise(ArgumentError) { f.read_nonblock(1, 2, 3) }
|
|
assert_equal("\u3042\u3044".force_encoding("BINARY"), f.read_nonblock(100))
|
|
assert_raise(EOFError) { f.read_nonblock(10) }
|
|
f.rewind
|
|
assert_equal("\u3042\u3044".force_encoding(Encoding::ASCII_8BIT), f.read_nonblock(f.size))
|
|
end
|
|
|
|
def test_read_nonblock_no_exceptions
|
|
f = StringIO.new("\u3042\u3044")
|
|
assert_raise(ArgumentError) { f.read_nonblock(-1, exception: false) }
|
|
assert_raise(ArgumentError) { f.read_nonblock(1, 2, 3, exception: false) }
|
|
assert_raise(ArgumentError) { f.read_nonblock }
|
|
assert_equal("\u3042\u3044".force_encoding(Encoding::ASCII_8BIT), f.read_nonblock(100, exception: false))
|
|
assert_equal(nil, f.read_nonblock(10, exception: false))
|
|
f.rewind
|
|
assert_equal("\u3042\u3044".force_encoding(Encoding::ASCII_8BIT), f.read_nonblock(f.size))
|
|
f.rewind
|
|
# not empty buffer
|
|
s = '0123456789'
|
|
assert_equal("\u3042\u3044".force_encoding(Encoding::ASCII_8BIT), f.read_nonblock(f.size, s))
|
|
end
|
|
|
|
def test_sysread
|
|
f = StringIO.new("sysread \u{30c6 30b9 30c8}")
|
|
assert_equal "sysread \u{30c6 30b9 30c8}", f.sysread
|
|
assert_equal "", f.sysread
|
|
assert_raise(EOFError) { f.sysread(1) }
|
|
f.rewind
|
|
assert_equal Encoding::ASCII_8BIT, f.sysread(3).encoding
|
|
end
|
|
|
|
def test_size
|
|
f = StringIO.new("1234")
|
|
assert_equal(4, f.size)
|
|
end
|
|
|
|
# This test is should in ruby/test_method.rb
|
|
# However this test depends on stringio library,
|
|
# we write it here.
|
|
class C < StringIO
|
|
alias old_init initialize
|
|
attr_reader :foo
|
|
def initialize
|
|
@foo = :ok
|
|
old_init
|
|
end
|
|
end
|
|
|
|
def test_method
|
|
assert_equal(:ok, C.new.foo, 'Bug #632 [ruby-core:19282]')
|
|
end
|
|
|
|
def test_ungetc_pos
|
|
b = '\\b00010001 \\B00010001 \\b1 \\B1 \\b000100011'
|
|
s = StringIO.new( b )
|
|
expected_pos = 0
|
|
while n = s.getc
|
|
assert_equal( expected_pos + 1, s.pos )
|
|
|
|
s.ungetc( n )
|
|
assert_equal( expected_pos, s.pos )
|
|
assert_equal( n, s.getc )
|
|
|
|
expected_pos += 1
|
|
end
|
|
end
|
|
|
|
def test_ungetc_padding
|
|
s = StringIO.new()
|
|
s.pos = 2
|
|
s.ungetc("a")
|
|
assert_equal("\0""a", s.string)
|
|
s.pos = 0
|
|
s.ungetc("b")
|
|
assert_equal("b""\0""a", s.string)
|
|
end
|
|
|
|
def test_ungetbyte_pos
|
|
b = '\\b00010001 \\B00010001 \\b1 \\B1 \\b000100011'
|
|
s = StringIO.new( b )
|
|
expected_pos = 0
|
|
while n = s.getbyte
|
|
assert_equal( expected_pos + 1, s.pos )
|
|
|
|
s.ungetbyte( n )
|
|
assert_equal( expected_pos, s.pos )
|
|
assert_equal( n, s.getbyte )
|
|
|
|
expected_pos += 1
|
|
end
|
|
end
|
|
|
|
def test_ungetbyte_padding
|
|
s = StringIO.new()
|
|
s.pos = 2
|
|
s.ungetbyte("a".ord)
|
|
assert_equal("\0""a", s.string)
|
|
s.pos = 0
|
|
s.ungetbyte("b".ord)
|
|
assert_equal("b""\0""a", s.string)
|
|
end
|
|
|
|
def test_frozen
|
|
s = StringIO.new
|
|
s.freeze
|
|
bug = '[ruby-core:33648]'
|
|
assert_raise(RuntimeError, bug) {s.puts("foo")}
|
|
assert_raise(RuntimeError, bug) {s.string = "foo"}
|
|
assert_raise(RuntimeError, bug) {s.reopen("")}
|
|
end
|
|
|
|
def test_frozen_string
|
|
s = StringIO.new("".freeze)
|
|
bug = '[ruby-core:48530]'
|
|
assert_raise(IOError, bug) {s.write("foo")}
|
|
assert_raise(IOError, bug) {s.ungetc("a")}
|
|
assert_raise(IOError, bug) {s.ungetbyte("a")}
|
|
end
|
|
|
|
def test_readlines_limit_0
|
|
assert_raise(ArgumentError, "[ruby-dev:43392]") { StringIO.new.readlines(0) }
|
|
end
|
|
|
|
def test_each_line_limit_0
|
|
assert_raise(ArgumentError, "[ruby-dev:43392]") { StringIO.new.each_line(0){} }
|
|
assert_raise(ArgumentError, "[ruby-dev:43392]") { StringIO.new.each_line("a",0){} }
|
|
end
|
|
|
|
def test_binmode
|
|
s = StringIO.new
|
|
s.set_encoding('utf-8')
|
|
assert_same s, s.binmode
|
|
|
|
bug_11945 = '[ruby-core:72699] [Bug #11945]'
|
|
assert_equal Encoding::ASCII_8BIT, s.external_encoding, bug_11945
|
|
end
|
|
|
|
def test_new_block_warning
|
|
assert_warn(/does not take block/) do
|
|
StringIO.new {}
|
|
end
|
|
end
|
|
|
|
def test_overflow
|
|
skip if RbConfig::SIZEOF["void*"] > RbConfig::SIZEOF["long"]
|
|
limit = (1 << (RbConfig::SIZEOF["void*"]*8-1)) - 0x10
|
|
assert_separately(%w[-rstringio], "#{<<-"begin;"}\n#{<<-"end;"}")
|
|
begin;
|
|
limit = #{limit}
|
|
ary = []
|
|
while true
|
|
x = "a"*0x100000
|
|
break if [x].pack("p").unpack("i!")[0] < 0
|
|
ary << x
|
|
skip if ary.size > 100
|
|
end
|
|
s = StringIO.new(x)
|
|
s.gets("xxx", limit)
|
|
assert_equal(0x100000, s.pos)
|
|
end;
|
|
end
|
|
end
|