👮 string literals should be single-quoted

spec/args/typographer_spec.rb

@@ -24,40 +24,40 @@ describe Squib::Args::Typographer do
     expect(t.process(%{"foo"})).to eq(%{\u201Cfoo\u201D})
   end
 
-  it "quotes in the middle of the string" do
+  it 'quotes in the middle of the string' do
     expect(t.process(%{hello "foo" world})).to eq(%{hello \u201Cfoo\u201D world})
   end
 
-  it "single left quotes at the beginning" do
+  it 'single left quotes at the beginning' do
     expect(t.process(%{'foo})).to eq(%{\u2018foo})
   end
 
-  it "single right quotes at the end" do
+  it 'single right quotes at the end' do
     expect(t.process(%{foo'})).to eq(%{foo\u2019})
   end
 
-  it "single quotes in the middle" do
+  it 'single quotes in the middle' do
     expect(t.process(%{a 'foo' bar})).to eq(%{a \u2018foo\u2019 bar})
   end
 
-  it "handles apostraphes" do
+  it 'handles apostraphes' do
     expect(t.process(%{can't})).to eq(%{can\u2019t})
   end
 
-it "single quotes inside double quotes" do
+it 'single quotes inside double quotes' do
     expect(t.process(%{"'I can't do that', he said"})).to eq(%{\u201C\u2018I can\u2019t do that\u2019, he said\u201D})
   end
 
-  it "replaces the straightforward ones" do
+  it 'replaces the straightforward ones' do
     expect(t.process(%{``hi...'' -- ---})).to eq(%{\u201Chi\u2026\u201D \u2013 \u2014})
   end
 
-  it "does nothing on lone quotes" do
+  it 'does nothing on lone quotes' do
     expect(t.process(%{"})).to eq(%{"})
     expect(t.process(%{'})).to eq(%{'})
   end
 
-  it "ignores stuff in <tags>" do
+  it 'ignores stuff in <tags>' do
     expect(t.process(%{<span weight="bold">"can't"</span>})).to eq(%{<span weight="bold">\u201Ccan\u2019t\u201D</span>})
   end
 

spec/logger_spec.rb

@@ -5,7 +5,7 @@ describe Squib.logger do
     Squib.logger = nil
     oldstdout = $stdout
     $stdout = StringIO.new
-    Squib::logger.warn "Test warn"
+    Squib::logger.warn 'Test warn'
     expect($stdout.string).to match /WARN: Test warn/
     $stdout = oldstdout
   end

spec/samples/run_samples_spec.rb

@@ -2,7 +2,7 @@ require 'spec_helper'
 require 'squib'
 require 'pp'
 
-describe "Squib samples" do
+describe 'Squib samples' do
 
   Dir["#{samples_dir}/**/*.rb"].each do |sample|
     it "executes #{sample} with no errors", slow: true do

spec/samples/samples_regression_spec.rb

@@ -2,7 +2,7 @@ require 'spec_helper'
 require 'squib'
 require 'pp'
 
-describe "Squib samples" do
+describe 'Squib samples' do
   
   around(:each) do |example|
     Dir.chdir(samples_dir) do

spec/samples/sanity.rb

@@ -14,14 +14,14 @@ class Sanity
 
   def images
     images   = []
-    exp_pngs = Dir[@@EXPECTED_DIR + "/**/*.png"]
+    exp_pngs = Dir[@@EXPECTED_DIR + '/**/*.png']
     bar      = ProgressBar.create(title: 'Diffing images', total: exp_pngs.size)
     exp_pngs.each do |exp_png|
       row = []
       actual_png = @@OUTPUT_DIR + File.basename(exp_png)
-      row << "file:///" + exp_png
-      row << "file:///" + actual_png # actual
-      row << "file:///" + diff_image(exp_png, actual_png)
+      row << 'file:///' + exp_png
+      row << 'file:///' + actual_png # actual
+      row << 'file:///' + diff_image(exp_png, actual_png)
       images << row
       bar.increment
     end
@@ -30,11 +30,11 @@ class Sanity
   end
 
   def run
-    puts "Building sanity test..."
+    puts 'Building sanity test...'
     sanity_template = File.read(@@SANITY_ERB)
     process_erb(sanity_template)
-    Launchy.open("file:///" + @@SANITY_HTML)
-    puts "Done."
+    Launchy.open('file:///' + @@SANITY_HTML)
+    puts 'Done.'
   end
 
   private
@@ -51,7 +51,7 @@ class Sanity
       end
     end
     out = Cairo::ImageSurface.new(new_data.pack('c*'), exp.format, exp.width, exp.height, exp.stride)
-    out_file = @@DIFF_DIR + exp_file[exp_file.rindex("/")..-1]
+    out_file = @@DIFF_DIR + exp_file[exp_file.rindex('/')..-1]
     out.write_to_png(out_file)
     out_file
   end

spec/spec_helper.rb

@@ -101,7 +101,7 @@ def mock_cairo(strio)
   allow(pango).to receive(:extents).and_return([Pango::Rectangle.new(0, 0, 0, 0)] * 2)
   allow(pango).to receive(:iter).and_return(iter)
   allow(pango).to receive(:alignment).and_return(Pango::Layout::Alignment::LEFT)
-  allow(pango).to receive(:text).and_return("foo")
+  allow(pango).to receive(:text).and_return('foo')
   allow(pango).to receive(:context).and_return(pango_cxt)
   allow(pango_cxt).to receive(:font_options=)
   allow(iter).to receive(:next_char!).and_return(false)