From 586aa14caa4106ac1085bad64d33baf7065ec3bf Mon Sep 17 00:00:00 2001
From: Samuel Williams <samuel.williams@oriontransfer.co.nz>
Date: Thu, 26 Oct 2023 14:30:14 +1300
Subject: [PATCH] Lower case normalization benchmark.

---
 examples/header-lowercase/benchmark.rb | 43 ++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 examples/header-lowercase/benchmark.rb

diff --git a/examples/header-lowercase/benchmark.rb b/examples/header-lowercase/benchmark.rb
new file mode 100644
index 00000000..58d92fb7
--- /dev/null
+++ b/examples/header-lowercase/benchmark.rb
@@ -0,0 +1,43 @@
+require 'benchmark/ips'
+
+class NormalizedHeaders
+	def initialize(fields)
+		@fields = fields
+	end
+	
+	def [](key)
+		@fields[key.downcase]
+	end
+end
+
+class Headers
+	def initialize(fields)
+		@fields = fields
+	end
+	
+	def [](key)
+		@fields[key]
+	end
+end
+
+FIELDS = {
+	'content-type' => 'text/html',
+	'content-length' => '127889',
+	'accept-ranges' => 'bytes',
+	'date' => 'Tue, 14 Jul 2015 22:00:02 GMT',
+	'via' => '1.1 varnish',
+	'age' => '0',
+	'connection' => 'keep-alive',
+	'x-served-by' => 'cache-iad2125-IAD',
+}
+
+NORMALIZED_HEADERS = NormalizedHeaders.new(FIELDS)
+HEADERS = Headers.new(FIELDS)
+
+Benchmark.ips do |x|
+	x.report('NormalizedHeaders[Content-Type]') { NORMALIZED_HEADERS['Content-Type'] }
+	x.report('NormalizedHeaders[content-type]') { NORMALIZED_HEADERS['content-type'] }
+	x.report('Headers') { HEADERS['content-type'] }
+	
+	x.compare!
+end