double quote them strings

.rubocop.yml

@@ -27,16 +27,8 @@ Style/SignalException:
   Enabled: false
 
 Style/Blocks:
-  Description: >-
-                Avoid using {...} for multi-line blocks (multiline chaining is
-                always ugly).
-                Prefer {...} over do...end for single-line blocks.
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#single-line-blocks'
-  Enabled: true
   Exclude:
     - spec/**/*
 
 Style/StringLiterals:
-  Description: 'Checks if uses of quotes match the configured preference.'
-  StyleGuide: 'https://github.com/bbatsov/ruby-style-guide#consistent-string-literals'
-  Enabled: false
+  EnforcedStyle: double_quotes

Gemfile

@@ -1,4 +1,4 @@
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 # Specify your gem's dependencies in pagerduty.gemspec
 gemspec

lib/pagerduty.rb

@@ -1,5 +1,5 @@
-require 'pagerduty/version'
-require 'pagerduty/http_transport'
+require "pagerduty/version"
+require "pagerduty/http_transport"
 
 class PagerdutyException < StandardError
   attr_reader :pagerduty_instance, :api_response

lib/pagerduty/http_transport.rb

@@ -1,7 +1,7 @@
 # encoding: utf-8
-require 'json'
-require 'net/http'
-require 'net/https'
+require "json"
+require "net/http"
+require "net/https"
 
 # @api private
 module Pagerduty::HttpTransport

spec/pagerduty/http_transport_spec.rb

@@ -13,10 +13,10 @@
   describe "::send_payload" do
     Given(:payload) {
       {
-        event_type: 'trigger',
-        service_key: 'test-srvc-key',
-        description: 'test-desc',
-        details: { key: 'value' }
+        event_type: "trigger",
+        service_key: "test-srvc-key",
+        description: "test-desc",
+        details: { key: "value" }
       }
     }