From 9a2e1e4743a4789602aa1b1a4bde7ffaf38eb12d Mon Sep 17 00:00:00 2001
From: Benjamin Fleischer <bf4@users.noreply.github.com>
Date: Fri, 6 Jan 2017 23:05:45 -0500
Subject: [PATCH] Merge pull request #2020 from bf4/silence_grape_warnings

Silence Grape warnings
---
 test/grape_test.rb  | 22 ++++++++++++++++++++--
 test/test_helper.rb | 12 ++++++++++++
 2 files changed, 32 insertions(+), 2 deletions(-)

diff --git a/test/grape_test.rb b/test/grape_test.rb
index b026021d..4851e57a 100644
--- a/test/grape_test.rb
+++ b/test/grape_test.rb
@@ -1,5 +1,7 @@
 require 'test_helper'
-require 'grape'
+TestHelper.silence_warnings do
+  require 'grape'
+end
 require 'grape/active_model_serializers'
 require 'kaminari'
 require 'kaminari/hooks'
@@ -53,7 +55,15 @@ module ActiveModelSerializers
 
     class GrapeTest < Grape::API
       format :json
-      include Grape::ActiveModelSerializers
+      TestHelper.silence_warnings do
+        include Grape::ActiveModelSerializers
+      end
+
+      def self.resources(*)
+        TestHelper.silence_warnings do
+          super
+        end
+      end
 
       resources :grape do
         get '/render' do
@@ -93,6 +103,14 @@ module ActiveModelSerializers
       Grape::Middleware::Globals.new(GrapeTest.new)
     end
 
+    extend Minitest::Assertions
+    def self.run_one_method(*)
+      _, stderr = capture_io do
+        super
+      end
+      fail Minitest::Assertion, stderr if stderr !~ /grape/
+    end
+
     def test_formatter_returns_json
       get '/grape/render'
 
diff --git a/test/test_helper.rb b/test/test_helper.rb
index e96c4840..294fa33c 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -40,6 +40,18 @@ require 'minitest'
 require 'minitest/autorun'
 Minitest.backtrace_filter = Minitest::BacktraceFilter.new
 
+module TestHelper
+  module_function
+
+  def silence_warnings
+    original_verbose = $VERBOSE
+    $VERBOSE = nil
+    yield
+  ensure
+    $VERBOSE = original_verbose
+  end
+end
+
 require 'support/rails_app'
 
 # require "rails/test_help"