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require 'test/unit'
require 'tempfile'
require 'ut_eof'
class TestFile < Test::Unit::TestCase
# I don't know Ruby's spec about "unlink-before-close" exactly.
# This test asserts current behaviour.
def test_unlink_before_close
filename = File.basename(__FILE__) + ".#{$$}"
w = File.open(filename, "w")
w << "foo"
w.close
r = File.open(filename, "r")
begin
if /(mswin|bccwin|mingw|emx)/ =~ RUBY_PLATFORM
assert_raise(Errno::EACCES) {File.unlink(filename)}
else
assert_nothing_raised {File.unlink(filename)}
end
ensure
r.close
File.unlink(filename) if File.exist?(filename)
end
end
include TestEOF
def open_file(content)
f = Tempfile.new("test-eof")
f << content
f.rewind
yield f
end
alias open_file_rw open_file
include TestEOF::Seek
def test_truncate_wbuf # [ruby-dev:24191]
f = Tempfile.new("test-truncate")
f.print "abc"
f.truncate(0)
f.print "def"
f.close
assert_equal("\0\0\0def", File.read(f.path))
end
def test_truncate_rbuf # [ruby-dev:24197]
f = Tempfile.new("test-truncate")
f.puts "abc"
f.puts "def"
f.close
f.open
assert_equal("abc\n", f.gets)
f.truncate(3)
assert_equal(nil, f.gets)
end
def test_truncate_beyond_eof
f = Tempfile.new("test-truncate")
f.print "abc"
f.truncate 10
assert_equal("\0" * 7, f.read(100), "[ruby-dev:24532]")
end
def test_read_all_extended_file
f = Tempfile.new("test-extended-file")
assert_nil(f.getc)
open(f.path, "w") {|g| g.print "a" }
assert_equal("a", f.read)
end
def test_gets_extended_file
f = Tempfile.new("test-extended-file")
assert_nil(f.getc)
open(f.path, "w") {|g| g.print "a" }
assert_equal("a", f.gets("a"))
end
def test_gets_para_extended_file
f = Tempfile.new("test-extended-file")
assert_nil(f.getc)
open(f.path, "w") {|g| g.print "\na" }
assert_equal("a", f.gets(""))
end
def test_each_byte_extended_file
f = Tempfile.new("test-extended-file")
assert_nil(f.getc)
open(f.path, "w") {|g| g.print "a" }
result = []
f.each_byte {|b| result << b.chr }
assert_equal([?a], result)
end
def test_getc_extended_file
f = Tempfile.new("test-extended-file")
assert_nil(f.getc)
open(f.path, "w") {|g| g.print "a" }
assert_equal(?a, f.getc)
end
def test_s_chown
assert_nothing_raised { File.chown -1, -1 }
assert_nothing_raised { File.chown nil, nil }
end
def test_chown
assert_nothing_raised {
File.open(__FILE__) {|f| f.chown -1, -1 }
}
# [ruby-dev:27140]
assert_nothing_raised {
File.open(__FILE__) {|f| f.chown nil, nil }
}
end
end
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