Handle test failure with test_post(TestNetHTTP_v1_2)

test/net/http/utils.rb

@@ -107,6 +107,7 @@ def initialize(method, path, headers, socket)
             hash[key] = value
           end if @body && @body.include?('=')
         end
+      rescue EOFError
       end
 
       def [](key)
@@ -150,13 +151,27 @@ def parse_path_and_query(path)
       def read_body
         content_length = @headers['Content-Length']&.to_i
         return unless content_length && content_length > 0
-        @socket.read(content_length)
+
+        body = ""
+        while body.bytesize < content_length
+          chunk = @socket.read(content_length - body.bytesize)
+          break unless chunk
+          body << chunk
+        end
+
+        body
       end
 
       def read_chunked_body
         body = ""
         while (chunk_size = @socket.gets.strip.to_i(16)) > 0
-          body << @socket.read(chunk_size)
+          chunk = ""
+          while chunk.bytesize < chunk_size
+            part = @socket.read(chunk_size - chunk.bytesize)
+            break unless part
+            chunk << part
+          end
+          body << chunk
           @socket.read(2) # read \r\n after each chunk
         end
         body