[ruby/net-http] Update the content-length heading when decoding bodies

Previously, the content-encoding header was removed and the body
was modified, but the content-length header was not modified,
resulting in the content-length header not matching the body
length.

Don't delete content-length before yielding inflate body, as that
causes a switch to read the entire body instead of reading in
chunks.

Fixes [Bug #16672]

https://github.com/ruby/net-http/commit/58284e9710

Co-authored-by: st0012 <stan001212@gmail.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/test/net/http/test_httpresponse.rb b/test/net/http/test_httpresponse.rb
index eb2551df46..394b4c5bfa 100644
--- a/test/net/http/test_httpresponse.rb
+++ b/test/net/http/test_httpresponse.rb
@@ -362,9 +362,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal '5', res['content-length']
       assert_equal 'hello', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal '13', res['content-length']
       assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15", body
     end
   end
@@ -390,9 +392,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal '5', res['content-length']
       assert_equal 'hello', body
     else
       assert_equal 'DEFLATE', res['content-encoding']
+      assert_equal '13', res['content-length']
       assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15", body
     end
   end
@@ -423,9 +427,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal 'hello', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15", body
     end
   end
@@ -450,6 +456,7 @@ EOS
     end
 
     assert_equal 'deflate', res['content-encoding'], 'Bug #7831'
+    assert_equal '13', res['content-length']
     assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15", body, 'Bug #7381'
   end
 
@@ -473,9 +480,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal 'hello', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal "x\x9C\xCBH\xCD\xC9\xC9\a\x00\x06,\x02\x15\r\n", body
     end
   end
@@ -523,9 +532,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal '0', res['content-length']
       assert_equal '', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal '0', res['content-length']
       assert_equal '', body
     end
   end
@@ -549,9 +560,11 @@ EOS
 
     if Net::HTTP::HAVE_ZLIB
       assert_equal nil, res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal '', body
     else
       assert_equal 'deflate', res['content-encoding']
+      assert_equal nil, res['content-length']
       assert_equal '', body
     end
   end