summaryrefslogtreecommitdiff
path: root/test/stringio/test_stringio.rb
diff options
context:
space:
mode:
Diffstat (limited to 'test/stringio/test_stringio.rb')
-rw-r--r--test/stringio/test_stringio.rb314
1 files changed, 314 insertions, 0 deletions
diff --git a/test/stringio/test_stringio.rb b/test/stringio/test_stringio.rb
index 5f8067e696f..d022c10fadd 100644
--- a/test/stringio/test_stringio.rb
+++ b/test/stringio/test_stringio.rb
@@ -21,6 +21,9 @@ class TestStringIO < Test::Unit::TestCase
io.truncate(0)
io.puts "def"
assert_equal("\0\0\0\0def\n", io.string, "[ruby-dev:24190]")
+ assert_raise(Errno::EINVAL) { io.truncate(-1) }
+ io.truncate(10)
+ assert_equal("\0\0\0\0def\n\0\0", io.string)
end
def test_seek_beyond_eof
@@ -65,4 +68,315 @@ class TestStringIO < Test::Unit::TestCase
assert_equal(["abc\n\n", "def\n"], StringIO.new("abc\n\ndef\n").readlines(""))
end
+ def test_write
+ s = ""
+ f = StringIO.new(s, "w")
+ f.print("foo")
+ f.close
+ assert_equal("foo", s)
+
+ f = StringIO.new(s, File::WRONLY)
+ f.print("bar")
+ f.close
+ assert_equal("bar", s)
+
+ f = StringIO.new(s, "a")
+ o = Object.new
+ def o.to_s; "baz"; end
+ f.print(o)
+ f.close
+ assert_equal("barbaz", s)
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_mode_error
+ f = StringIO.new("", "r")
+ assert_raise(IOError) { f.write("foo") }
+
+ f = StringIO.new("", "w")
+ assert_raise(IOError) { f.read }
+
+ assert_raise(Errno::EACCES) { StringIO.new("".freeze, "w") }
+ s = ""
+ f = StringIO.new(s, "w")
+ s.freeze
+ assert_raise(IOError) { f.write("foo") }
+
+ assert_raise(IOError) { StringIO.allocate.read }
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_open
+ s = ""
+ StringIO.open("foo") {|f| s = f.read }
+ assert_equal("foo", s)
+ end
+
+ def test_isatty
+ assert_equal(false, StringIO.new("").isatty)
+ end
+
+ def test_path
+ assert_equal(nil, StringIO.new("").path)
+ end
+
+ def test_fsync
+ assert_equal(0, StringIO.new("").fsync)
+ end
+
+ def test_sync
+ assert_equal(true, StringIO.new("").sync)
+ assert_equal(false, StringIO.new("").sync = false)
+ end
+
+ def test_set_fcntl
+ assert_raise(NotImplementedError) { StringIO.new("").fcntl }
+ end
+
+ def test_close
+ f = StringIO.new("")
+ f.close
+ assert_raise(IOError) { f.close }
+
+ f = StringIO.new("")
+ f.close_read
+ f.close_write
+ assert_raise(IOError) { f.close }
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_close_read
+ f = StringIO.new("")
+ f.close_read
+ assert_raise(IOError) { f.read }
+ assert_raise(IOError) { f.close_read }
+ f.close
+
+ f = StringIO.new("", "w")
+ assert_raise(IOError) { f.close_read }
+ f.close
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_close_write
+ f = StringIO.new("")
+ f.close_write
+ assert_raise(IOError) { f.write("foo") }
+ assert_raise(IOError) { f.close_write }
+ f.close
+
+ f = StringIO.new("", "r")
+ assert_raise(IOError) { f.close_write }
+ f.close
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_closed
+ f = StringIO.new("")
+ assert_equal(false, f.closed?)
+ f.close
+ assert_equal(true, f.closed?)
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_closed_read
+ f = StringIO.new("")
+ assert_equal(false, f.closed_read?)
+ f.close_write
+ assert_equal(false, f.closed_read?)
+ f.close_read
+ assert_equal(true, f.closed_read?)
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_closed_write
+ f = StringIO.new("")
+ assert_equal(false, f.closed_write?)
+ f.close_read
+ assert_equal(false, f.closed_write?)
+ f.close_write
+ assert_equal(true, f.closed_write?)
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_dup
+ f1 = StringIO.new("1234")
+ assert_equal("1", f1.getc)
+ f2 = f1.dup
+ assert_equal("2", f2.getc)
+ assert_equal("3", f1.getc)
+ assert_equal("4", f2.getc)
+ assert_equal(nil, f1.getc)
+ assert_equal(true, f2.eof?)
+ f1.close
+ assert_equal(true, f2.closed?)
+ ensure
+ f1.close unless f1.closed?
+ f2.close unless f2.closed?
+ end
+
+ def test_lineno
+ f = StringIO.new("foo\nbar\nbaz\n")
+ assert_equal([0, "foo\n"], [f.lineno, f.gets])
+ assert_equal([1, "bar\n"], [f.lineno, f.gets])
+ f.lineno = 1000
+ assert_equal([1000, "baz\n"], [f.lineno, f.gets])
+ assert_equal([1001, nil], [f.lineno, f.gets])
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_pos
+ f = StringIO.new("foo\nbar\nbaz\n")
+ assert_equal([0, "foo\n"], [f.pos, f.gets])
+ assert_equal([4, "bar\n"], [f.pos, f.gets])
+ assert_raise(Errno::EINVAL) { f.pos = -1 }
+ f.pos = 1
+ assert_equal([1, "oo\n"], [f.pos, f.gets])
+ assert_equal([4, "bar\n"], [f.pos, f.gets])
+ assert_equal([8, "baz\n"], [f.pos, f.gets])
+ assert_equal([12, nil], [f.pos, f.gets])
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_reopen
+ f = StringIO.new("foo\nbar\nbaz\n")
+ assert_equal("foo\n", f.gets)
+ f.reopen("qux\nquux\nquuux\n")
+ assert_equal("quux\n", f.gets)
+
+ f2 = StringIO.new("")
+ f2.reopen(f)
+ assert_equal("quuux\n", f2.gets)
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_seek
+ f = StringIO.new("1234")
+ assert_raise(Errno::EINVAL) { f.seek(-1) }
+ f.seek(-1, 2)
+ assert_equal("4", f.getc)
+ assert_raise(Errno::EINVAL) { f.seek(1, 3) }
+ f.close
+ assert_raise(IOError) { f.seek(0) }
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_each_byte
+ f = StringIO.new("1234")
+ a = []
+ f.each_byte {|c| a << c }
+ assert_equal(%w(1 2 3 4).map {|c| c.ord }, a)
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_getbyte
+ f = StringIO.new("1234")
+ assert_equal("1".ord, f.getbyte)
+ assert_equal("2".ord, f.getbyte)
+ assert_equal("3".ord, f.getbyte)
+ assert_equal("4".ord, f.getbyte)
+ assert_equal(nil, f.getbyte)
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_ungetc
+ s = "1234"
+ f = StringIO.new(s, "r")
+ assert_nothing_raised { f.ungetc("x") }
+ assert_equal("x", f.getc) # bug?
+ assert_equal("1", f.getc)
+
+ s = "1234"
+ f = StringIO.new(s, "r")
+ assert_equal("1", f.getc)
+ f.ungetc("y".ord)
+ assert_equal("y", f.getc)
+ assert_equal("2", f.getc)
+ ensure
+ f.close unless f.closed?
+ end
+
+ def test_readchar
+ f = StringIO.new("1234")
+ a = ""
+ assert_raise(EOFError) { loop { a << f.readchar } }
+ assert_equal("1234", a)
+ end
+
+ def test_readbyte
+ f = StringIO.new("1234")
+ a = []
+ assert_raise(EOFError) { loop { a << f.readbyte } }
+ assert_equal("1234".unpack("C*"), a)
+ end
+
+ def test_each_char
+ f = StringIO.new("1234")
+ assert_equal(%w(1 2 3 4), f.each_char.to_a)
+ end
+
+ def test_gets2
+ 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"))
+ end
+
+ def test_each
+ f = StringIO.new("foo\nbar\nbaz\n")
+ assert_equal(["foo\n", "bar\n", "baz\n"], f.each.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_read
+ f = StringIO.new("1234")
+ assert_raise(ArgumentError) { f.read(-1) }
+ assert_raise(ArgumentError) { f.read(1, 2, 3) }
+ end
+
+ def test_size
+ f = StringIO.new("1234")
+ assert_equal(4, f.size)
+ end
+
end