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-rw-r--r--test/ruby/test_io.rb10
1 files changed, 10 insertions, 0 deletions
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index 0fb28071cc..bb6f239509 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -1555,6 +1555,16 @@ End
IO.foreach(t.path, "b", 3) {|x| a << x }
assert_equal(["foo", "\nb", "ar\n", "b", "az\n"], a)
+ bug = '[ruby-dev:31525]'
+ assert_raise(ArgumentError, bug) {IO.foreach}
+
+ a = nil
+ assert_nothing_raised(ArgumentError, bug) {a = IO.foreach(t.path).to_a}
+ assert_equal(["foo\n", "bar\n", "baz\n"], a, bug)
+
+ bug6054 = '[ruby-dev:45267]'
+ e = assert_raise(IOError, bug6054) {IO.foreach(t.path, mode:"w").next}
+ assert_match(/not opened for reading/, e.message, bug6054)
end
def test_s_readlines