* lib/net/http/header.rb (Net::HTTPHeader#{each_header,each_name,

each_capitalized_name,each_value,each_capitalized}): Return
  sized enumerators.

* test/net/http/test_httpheader.rb: add test for above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54906 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,11 @@
+Wed May  4 18:38:00 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
+
+	* lib/net/http/header.rb (Net::HTTPHeader#{each_header,each_name,
+	  each_capitalized_name,each_value,each_capitalized}): Return
+	  sized enumerators.
+
+	* test/net/http/test_httpheader.rb: add test for above.
+
 Wed May  4 17:53:15 2016  Kazuki Tsujimoto  <kazuki@callcc.net>
 
 	* lib/set.rb (Set#{delete_if,keep_if,collect!,reject!,select!,classify,divide},

lib/net/http/header.rb

@@ -101,7 +101,7 @@ module Net::HTTPHeader
   #     response.header.each_header {|key,value| puts "#{key} = #{value}" }
   #
   def each_header   #:yield: +key+, +value+
-    block_given? or return enum_for(__method__)
+    block_given? or return enum_for(__method__) { @header.size }
     @header.each do |k,va|
       yield k, va.join(', ')
     end
@@ -112,7 +112,7 @@ module Net::HTTPHeader
   # Iterates through the header names in the header, passing
   # each header name to the code block.
   def each_name(&block)   #:yield: +key+
-    block_given? or return enum_for(__method__)
+    block_given? or return enum_for(__method__) { @header.size }
     @header.each_key(&block)
   end
 
@@ -125,7 +125,7 @@ module Net::HTTPHeader
   # capitalization may not match that used by the remote HTTP
   # server in its response.
   def each_capitalized_name  #:yield: +key+
-    block_given? or return enum_for(__method__)
+    block_given? or return enum_for(__method__) { @header.size }
     @header.each_key do |k|
       yield capitalize(k)
     end
@@ -134,7 +134,7 @@ module Net::HTTPHeader
   # Iterates through header values, passing each value to the
   # code block.
   def each_value   #:yield: +value+
-    block_given? or return enum_for(__method__)
+    block_given? or return enum_for(__method__) { @header.size }
     @header.each_value do |va|
       yield va.join(', ')
     end
@@ -165,7 +165,7 @@ module Net::HTTPHeader
   # capitalization may not match that used by the remote HTTP
   # server in its response.
   def each_capitalized
-    block_given? or return enum_for(__method__)
+    block_given? or return enum_for(__method__) { @header.size }
     @header.each do |k,v|
       yield capitalize(k), v.join(', ')
     end

test/net/http/test_httpheader.rb

@@ -111,6 +111,12 @@ class HTTPHeaderTest < Test::Unit::TestCase
       assert_equal 'my-header', k
       assert_equal 'test', v
     end
+    e = @c.each
+    assert_equal 1, e.size
+    e.each do |k, v|
+      assert_equal 'my-header', k
+      assert_equal 'test', v
+    end
   end
 
   def test_each_key
@@ -121,6 +127,12 @@ class HTTPHeaderTest < Test::Unit::TestCase
     @c.each_key do |k|
       assert_equal 'my-header', k
     end
+    e = @c.each_key
+    assert_equal 1, e.size
+    e.each do |k|
+      assert_equal 'my-header', k
+    end
+  end
 
   def test_each_capitalized_name
     @c['my-header'] = 'test'
@@ -130,6 +142,11 @@ class HTTPHeaderTest < Test::Unit::TestCase
     @c.each_capitalized_name do |k|
       assert_equal 'My-Header', k
     end
+    e = @c.each_capitalized_name
+    assert_equal 1, e.size
+    e.each do |k|
+      assert_equal 'My-Header', k
+    end
   end
 
   def test_each_value
@@ -140,6 +157,11 @@ class HTTPHeaderTest < Test::Unit::TestCase
     @c.each_value do |v|
       assert_equal 'test', v
     end
+    e = @c.each_value
+    assert_equal 1, e.size
+    e.each do |v|
+      assert_equal 'test', v
+    end
   end
 
   def test_canonical_each
@@ -148,6 +170,12 @@ class HTTPHeaderTest < Test::Unit::TestCase
       assert_equal 'My-Header', k
       assert_equal 'a, b', v
     end
+    e = @c.canonical_each
+    assert_equal 1, e.size
+    e.each do |k,v|
+      assert_equal 'My-Header', k
+      assert_equal 'a, b', v
+    end
   end
 
   def test_each_capitalized
@@ -156,6 +184,12 @@ class HTTPHeaderTest < Test::Unit::TestCase
       assert_equal 'My-Header', k
       assert_equal 'a, b', v
     end
+    e = @c.each_capitalized
+    assert_equal 1, e.size
+    e.each do |k,v|
+      assert_equal 'My-Header', k
+      assert_equal 'a, b', v
+    end
   end
 
   def test_each_capitalized_with_symbol
@@ -164,6 +198,12 @@ class HTTPHeaderTest < Test::Unit::TestCase
       assert_equal "My_header", k
       assert_equal 'a, b', v
     end
+    e = @c.each_capitalized
+    assert_equal 1, e.size
+    e.each do |k,v|
+      assert_equal 'My_header', k
+      assert_equal 'a, b', v
+    end
   end
 
   def test_key?