diff options
Diffstat (limited to 'activesupport/test')
-rw-r--r-- | activesupport/test/core_ext/io_test.rb | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/io_test.rb b/activesupport/test/core_ext/io_test.rb new file mode 100644 index 0000000000..b9abf685da --- /dev/null +++ b/activesupport/test/core_ext/io_test.rb @@ -0,0 +1,23 @@ +require 'abstract_unit' + +require 'active_support/core_ext/io' + +class IOTest < Test::Unit::TestCase + def test_binread_one_arg + assert_equal File.read(__FILE__), IO.binread(__FILE__) + end + + def test_binread_two_args + assert_equal File.read(__FILE__).bytes.first(10).pack('C*'), + IO.binread(__FILE__, 10) + end + + def test_binread_three_args + actual = IO.binread(__FILE__, 5, 10) + expected = File.open(__FILE__, 'rb') { |f| + f.seek 10 + f.read 5 + } + assert_equal expected, actual + end +end |