From 3ac1c9a22fc8ee176650d91542bb71d05884feac Mon Sep 17 00:00:00 2001
From: Greg Cobb <gcobb@pivotal.io>
Date: Mon, 24 Aug 2020 11:56:13 -0700
Subject: [PATCH] Remove unused RingBuffer class

Call was removed in 25efe93 as part of removing varz
---
 lib/cloud_controller.rb                |  2 ++
 lib/sinatra/vcap.rb                    |  1 -
 lib/vcap/ring_buffer.rb                | 16 ---------
 spec/unit/lib/vcap/ring_buffer_spec.rb | 47 --------------------------
 4 files changed, 2 insertions(+), 64 deletions(-)
 delete mode 100644 lib/vcap/ring_buffer.rb
 delete mode 100644 spec/unit/lib/vcap/ring_buffer_spec.rb

diff --git a/lib/cloud_controller.rb b/lib/cloud_controller.rb
index f5fbf966349..33225095141 100644
--- a/lib/cloud_controller.rb
+++ b/lib/cloud_controller.rb
@@ -8,6 +8,8 @@
 
 require 'uaa/token_coder'
 
+module VCAP; end
+
 require 'sinatra/vcap'
 require File.expand_path('../config/environment', __dir__)
 
diff --git a/lib/sinatra/vcap.rb b/lib/sinatra/vcap.rb
index 46b5370bc8d..1200ac17126 100644
--- a/lib/sinatra/vcap.rb
+++ b/lib/sinatra/vcap.rb
@@ -1,4 +1,3 @@
-require 'vcap/ring_buffer'
 require 'vcap/rest_api'
 require 'vcap/request'
 require 'presenters/error_presenter'
diff --git a/lib/vcap/ring_buffer.rb b/lib/vcap/ring_buffer.rb
deleted file mode 100644
index 57c92623749..00000000000
--- a/lib/vcap/ring_buffer.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-module VCAP
-  class RingBuffer < Array
-    attr_reader :max_size
-
-    def initialize(max_size)
-      @max_size = max_size
-    end
-
-    def push(item)
-      super
-      self.shift if size > @max_size
-    end
-
-    alias_method :<<, :push
-  end
-end
diff --git a/spec/unit/lib/vcap/ring_buffer_spec.rb b/spec/unit/lib/vcap/ring_buffer_spec.rb
deleted file mode 100644
index 07a7a224b16..00000000000
--- a/spec/unit/lib/vcap/ring_buffer_spec.rb
+++ /dev/null
@@ -1,47 +0,0 @@
-require 'spec_helper'
-require 'vcap/ring_buffer'
-
-module VCAP
-  RSpec.describe RingBuffer do
-    MAX_ENTRIES = 5
-    let(:rb) { RingBuffer.new(MAX_ENTRIES) }
-
-    context 'empty' do
-      it '.empty? should be true' do
-        expect(rb.empty?).to be true
-      end
-    end
-
-    context 'with max push MAX_ENTRIES times' do
-      before do
-        MAX_ENTRIES.times do |i|
-          rb.push i
-        end
-      end
-
-      it '.empty? should be false' do
-        expect(rb.empty?).to be false
-      end
-
-      it '.size should return MAX_ENTRIES' do
-        expect(rb.size).to eq(MAX_ENTRIES)
-      end
-
-      it 'should be in the correct order' do
-        a = []
-        MAX_ENTRIES.times { |i| a.push i }
-        expect(rb).to eq(a)
-      end
-
-      it '.push should add a new entry and drop the old one' do
-        rb.push 'a'
-        expect(rb).to eq([1, 2, 3, 4, 'a'])
-      end
-
-      it '.<< should add a new entry and drop the old one' do
-        rb << 'a'
-        expect(rb).to eq([1, 2, 3, 4, 'a'])
-      end
-    end
-  end
-end