Strings are double-quoted

Gemfile

@@ -1,3 +1,3 @@
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 gemspec

diagnostics-sample.gemspec

@@ -1,25 +1,25 @@
 # -*- encoding: utf-8 -*-
 Gem::Specification.new do |s|
-  s.name = 'evt-diagnostics-sample'
-  s.version = '2.0.0.2'
-  s.summary = 'Sampling and measurement of execution cycles'
-  s.description = ' '
+  s.name = "evt-diagnostics-sample"
+  s.version = "2.0.0.2"
+  s.summary = "Sampling and measurement of execution cycles"
+  s.description = " "
 
-  s.authors = ['The Eventide Project']
-  s.email = '[email protected]'
-  s.homepage = 'https://github.com/eventide-project/diagnostics-sample'
-  s.licenses = ['MIT']
+  s.authors = ["The Eventide Project"]
+  s.email = "[email protected]"
+  s.homepage = "https://github.com/eventide-project/diagnostics-sample"
+  s.licenses = ["MIT"]
 
-  s.require_paths = ['lib']
-  s.files = Dir.glob('{lib}/**/*')
+  s.require_paths = ["lib"]
+  s.files = Dir.glob("{lib}/**/*")
   s.platform = Gem::Platform::RUBY
-  s.required_ruby_version = '>= 2.3.3'
+  s.required_ruby_version = ">= 2.3.3"
 
-  s.add_runtime_dependency 'bigdecimal'
+  s.add_runtime_dependency "bigdecimal"
 
-  s.add_runtime_dependency 'evt-log'
-  s.add_runtime_dependency 'evt-configure'
-  s.add_runtime_dependency 'evt-schema'
+  s.add_runtime_dependency "evt-log"
+  s.add_runtime_dependency "evt-configure"
+  s.add_runtime_dependency "evt-schema"
 
-  s.add_development_dependency 'test_bench'
+  s.add_development_dependency "test_bench"
 end

init.rb

@@ -1,3 +1,3 @@
-require_relative './load_path'
+require_relative "./load_path"
 
-require 'diagnostics/sample'
+require "diagnostics/sample"

lib/diagnostics/sample.rb

@@ -1,15 +1,15 @@
-require 'bigdecimal'
+require "bigdecimal"
 
-require 'clock'
-require 'configure'
-require 'dependency'
-require 'log'
-require 'schema'
+require "clock"
+require "configure"
+require "dependency"
+require "log"
+require "schema"
 
-require 'diagnostics/sample/defaults'
-require 'diagnostics/sample/log'
-require 'diagnostics/sample/measure/clock'
-require 'diagnostics/sample/measure'
-require 'diagnostics/sample/result'
+require "diagnostics/sample/defaults"
+require "diagnostics/sample/log"
+require "diagnostics/sample/measure/clock"
+require "diagnostics/sample/measure"
+require "diagnostics/sample/result"
 
-require 'diagnostics/sample/sample'
+require "diagnostics/sample/sample"

lib/diagnostics/sample/controls.rb

@@ -1,10 +1,10 @@
-require 'clock/controls'
+require "clock/controls"
 
-require 'diagnostics/sample/controls/clock'
-require 'diagnostics/sample/controls/time'
+require "diagnostics/sample/controls/clock"
+require "diagnostics/sample/controls/time"
 
-require 'diagnostics/sample/controls/frequency'
-require 'diagnostics/sample/controls/mean'
-require 'diagnostics/sample/controls/standard_deviation'
+require "diagnostics/sample/controls/frequency"
+require "diagnostics/sample/controls/mean"
+require "diagnostics/sample/controls/standard_deviation"
 
-require 'diagnostics/sample/controls/result'
+require "diagnostics/sample/controls/result"

lib/diagnostics/sample/controls/result.rb

@@ -33,7 +33,7 @@ def self.example
               Time: %fms
               Mean Cycle Time: %fms (± %fms)
               Cycles Per Second: %f
-              GC: #{gc ? 'on' : 'off'}
+              GC: #{gc ? "on" : "off"}
             TEXT
           end
         end

lib/diagnostics/sample/result.rb

@@ -64,7 +64,7 @@ def digest
           Time: %fms
           Mean Cycle Time: %fms (± %fms)
           Cycles Per Second: %f
-          GC: #{gc ? 'on' : 'off'}
+          GC: #{gc ? "on" : "off"}
         TEXT
       end
       alias_method :to_s, :digest

load_path.rb

@@ -1,4 +1,4 @@
-bundler_standalone_loader = 'gems/bundler/setup'
+bundler_standalone_loader = "gems/bundler/setup"
 
 begin
   require_relative bundler_standalone_loader
@@ -8,10 +8,10 @@
   Bundler.require
 end
 
-lib_dir = File.expand_path('lib', __dir__)
+lib_dir = File.expand_path("lib", __dir__)
 $LOAD_PATH.unshift(lib_dir) unless $LOAD_PATH.include?(lib_dir)
 
-libraries_dir = ENV['LIBRARIES_HOME']
+libraries_dir = ENV["LIBRARIES_HOME"]
 unless libraries_dir.nil?
   libraries_dir = File.expand_path(libraries_dir)
   $LOAD_PATH.unshift libraries_dir unless $LOAD_PATH.include?(libraries_dir)

test.rb

@@ -1 +1 @@
-require_relative 'test/automated'
+require_relative "test/automated"

test/automated.rb

@@ -1,6 +1,6 @@
-require_relative './test_init'
+require_relative "./test_init"
 
 TestBench::Run.(
-  'test/automated',
-  exclude: '{_*,*sketch*,*_init,*_tests}.rb'
+  "test/automated",
+  exclude: "{_*,*sketch*,*_init,*_tests}.rb"
 ) or exit(false)

test/automated/automated_init.rb

@@ -1 +1 @@
-require_relative '../test_init'
+require_relative "../test_init"

test/automated/measure/clock/precision.rb

@@ -1,4 +1,4 @@
-require_relative '../../automated_init'
+require_relative "../../automated_init"
 
 context "Measure" do
   context "Clock" do

test/automated/measure/clock/substitute.rb

@@ -1,4 +1,4 @@
-require_relative '../../automated_init'
+require_relative "../../automated_init"
 
 context "Measure" do
   context "Clock" do
@@ -18,8 +18,8 @@
       context "Current Time Not Set" do
         substitute = SubstAttr::Substitute.build(Sample::Measure::Clock)
 
-        test "Returns nothing" do
-          assert(substitute.now == nil)
+        test "Returns current time" do
+          refute(substitute.now == nil)
         end
       end
     end

test/automated/measure/garbage_collection.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Measure" do
   context "Garbage Collection" do

test/automated/measure/measure.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Measure" do
   executed = false

test/automated/measure/optional_argument.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Measure" do
   context "Optional Argument" do
@@ -8,10 +8,10 @@
       argument = arg
     end
 
-    measure.('some-value')
+    measure.("some-value")
 
     test "Argument is passed to action" do
-      assert(argument == 'some-value')
+      assert(argument == "some-value")
     end
   end
 end

test/automated/result/cycle.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Result" do
   context "Cycle" do

test/automated/result/cycles_per_second.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Result" do
   context "Cycles Per Second" do

test/automated/result/digest.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Result" do
   context "Digest" do

test/automated/result/mean_cycle_time.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Result" do
   context "Mean Cycle Time" do

test/automated/result/mean_warmup_cycle_time.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Result" do
   context "Mean Warmup Cycle Time" do

test/automated/result/time_standard_deviation.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Result" do
   context "Time Standard Deviation" do

test/automated/result/warmup_cycle.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Result" do
   context "Warmup Cycle" do

test/automated/result/warmup_cycles_per_second.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Result" do
   context "Warmup Cycles Per Second" do

test/automated/result/warmup_time_standard_deviation.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Result" do
   context "Warmup Time Standard Deviation" do

test/automated/sample/block_argument/block_argument.rb

@@ -1,4 +1,4 @@
-require_relative '../../automated_init'
+require_relative "../../automated_init"
 
 context "Sample" do
   context "Block Argument" do

test/automated/sample/block_argument/warmup_cycles.rb

@@ -1,4 +1,4 @@
-require_relative '../../automated_init'
+require_relative "../../automated_init"
 
 context "Sample" do
   context "Block Argument" do

test/automated/sample/optional_cycles.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Sample" do
   context "Optional Cycles" do

test/automated/sample/optional_warmup_cycles.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Sample" do
   context "Optional Warmup Cycles" do

test/automated/sample/sample.rb

@@ -1,4 +1,4 @@
-require_relative '../automated_init'
+require_relative "../automated_init"
 
 context "Sample" do
   executions = 0

test/interactive/benchmark.rb

@@ -1,4 +1,4 @@
-require_relative './interactive_init'
+require_relative "./interactive_init"
 
 measurement_subject = proc {
   sleep 0.01

test/interactive/interactive_init.rb

@@ -1,4 +1,4 @@
-ENV['LOG_TAGS'] ||= '_untagged,diagnostics_sample'
-ENV['LOG_LEVEL'] ||= 'info'
+ENV["LOG_TAGS"] ||= "_untagged,diagnostics_sample"
+ENV["LOG_LEVEL"] ||= "info"
 
-require_relative '../test_init'
+require_relative "../test_init"

test/test_init.rb

@@ -1,15 +1,15 @@
-ENV['CONSOLE_DEVICE'] ||= 'stdout'
-ENV['LOG_LEVEL'] ||= '_min'
+ENV["CONSOLE_DEVICE"] ||= "stdout"
+ENV["LOG_LEVEL"] ||= "_min"
 
 puts RUBY_DESCRIPTION
 
-require_relative '../init.rb'
+require_relative "../init.rb"
 
-require 'test_bench'; TestBench.activate
+require "test_bench"; TestBench.activate
 
-require 'pp'
+require "pp"
 
-require 'diagnostics/sample/controls'
+require "diagnostics/sample/controls"
 
 Sample = Diagnostics::Sample
 Controls = Diagnostics::Sample::Controls