dir.c: Dir.each_child and Dir.children

* dir.c (dir_s_each_child, dir_s_children): Dir.each_child and
  Dir.children which are similar to Dir.foreach and Dir.entries
  respectively, except to exclude "."  and "..".  [Feature #11302]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58879 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 2 deletions

diff --git a/test/ruby/test_dir.rb b/test/ruby/test_dir.rb
index 052f67ed4b..69daa766a4 100644
--- a/test/ruby/test_dir.rb
+++ b/test/ruby/test_dir.rb
@@ -214,9 +214,11 @@ class TestDir < Test::Unit::TestCase
     assert_equal(files, Dir.open(@root) {|d| Dir.glob("*/*.c", base: d)}.sort)
   end
 
-  def assert_entries(entries)
+  def assert_entries(entries, children = false)
     entries.sort!
-    assert_equal(%w(. ..) + ("a".."z").to_a, entries)
+    expected = ("a".."z").to_a
+    expected = %w(. ..) + expected unless children
+    assert_equal(expected, entries)
   end
 
   def test_entries
@@ -228,6 +230,14 @@ class TestDir < Test::Unit::TestCase
     assert_entries(Dir.foreach(@root).to_a)
   end
 
+  def test_children
+    assert_entries(Dir.children(@root), true)
+  end
+
+  def test_each_child
+    assert_entries(Dir.each_child(@root).to_a, true)
+  end
+
   def test_dir_enc
     dir = Dir.open(@root, encoding: "UTF-8")
     begin