diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/ruby/test_io.rb | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb index 5ed0ac4d54..06da5db742 100644 --- a/test/ruby/test_io.rb +++ b/test/ruby/test_io.rb @@ -237,7 +237,6 @@ class TestIO < Test::Unit::TestCase } } - bigcontent = "abc" * 123456 File.open("bigsrc", "w") {|f| f << bigcontent } ret = IO.copy_stream("bigsrc", "bigdst") @@ -511,4 +510,39 @@ class TestIO < Test::Unit::TestCase assert_equal("bcd", sio.string) } end + + def test_copy_stream_src_wbuf + mkcdtmpdir {|d| + with_pipe {|r, w| + File.open("foe", "w+") {|f| + f.write "abcd\n" + f.rewind + f.write "xy" + IO.copy_stream(f, w) + } + assert_equal("xycd\n", File.read("foe")) + w.close + assert_equal("cd\n", r.read) + r.close + } + } + end + + def test_copy_stream_dst_rbuf + mkcdtmpdir {|d| + with_pipe {|r, w| + w << "xyz" + w.close + File.open("fom", "w+") {|f| + f.write "abcd\n" + f.rewind + assert_equal("abc", f.read(3)) + f.ungetc "c" + IO.copy_stream(r, f) + } + assert_equal("abxyz", File.read("fom")) + } + } + end + end |