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d222472299
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17102 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
382 lines
9 KiB
Ruby
382 lines
9 KiB
Ruby
require 'test/unit'
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require 'stringio'
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dir = File.expand_path(__FILE__)
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2.times {dir = File.dirname(dir)}
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$:.replace([File.join(dir, "ruby")] | $:)
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require '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_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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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_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_path
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assert_equal(nil, StringIO.new("").path)
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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_raise(IOError) { 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_raise(IOError) { 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_raise(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_raise(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(true, f2.closed?)
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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_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?
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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_gets2
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f = StringIO.new("foo\nbar\nbaz\n")
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assert_equal("fo", f.gets(2))
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o = Object.new
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def o.to_str; "z"; end
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assert_equal("o\nbar\nbaz", f.gets(o))
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f = StringIO.new("foo\nbar\nbaz\n")
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assert_equal("foo\nbar\nbaz", f.gets("az"))
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f = StringIO.new("a" * 10000 + "zz!")
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assert_equal("a" * 10000 + "zz", f.gets("zz"))
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f = StringIO.new("a" * 10000 + "zz!")
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assert_equal("a" * 10000 + "zz!", f.gets("zzz"))
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end
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def test_each
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f = StringIO.new("foo\nbar\nbaz\n")
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assert_equal(["foo\n", "bar\n", "baz\n"], f.each.to_a)
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end
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def test_putc
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s = ""
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f = StringIO.new(s, "w")
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f.putc("1")
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f.putc("2")
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f.putc("3")
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f.close
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assert_equal("123", s)
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s = "foo"
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f = StringIO.new(s, "a")
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f.putc("1")
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f.putc("2")
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f.putc("3")
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f.close
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assert_equal("foo123", s)
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end
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def test_read
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f = StringIO.new("1234")
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assert_raise(ArgumentError) { f.read(-1) }
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assert_raise(ArgumentError) { f.read(1, 2, 3) }
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end
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def test_size
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f = StringIO.new("1234")
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assert_equal(4, f.size)
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end
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end
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