Applied Rubocop rules that I like

- Other linting configuration also applied.
- Soft-deprecating versions older than 2.3.

1 files changed, 16 insertions, 12 deletions

diff --git a/spec/diff_spec.rb b/spec/diff_spec.rb
index 020ff44..e7d632a 100644
--- a/spec/diff_spec.rb
+++ b/spec/diff_spec.rb
@@ -1,33 +1,37 @@
-# -*- ruby encoding: utf-8 -*-
+# frozen_string_literal: true
 
 require 'spec_helper'
 
-describe Diff::LCS, ".diff" do
+describe Diff::LCS, '.diff' do
   include Diff::LCS::SpecHelper::Matchers
 
-  it "correctly diffs seq1 to seq2" do
+  it 'correctly diffs seq1 to seq2' do
     diff_s1_s2 = Diff::LCS.diff(seq1, seq2)
     expect(change_diff(correct_forward_diff)).to eq(diff_s1_s2)
   end
 
-  it "correctly diffs seq2 to seq1" do
+  it 'correctly diffs seq2 to seq1' do
     diff_s2_s1 = Diff::LCS.diff(seq2, seq1)
     expect(change_diff(correct_backward_diff)).to eq(diff_s2_s1)
   end
 
-  it "correctly diffs against an empty sequence" do
+  it 'correctly diffs against an empty sequence' do
     diff = Diff::LCS.diff(word_sequence, [])
     correct_diff = [
-      [ [ '-', 0, 'abcd'           ],
-        [ '-', 1, 'efgh'           ],
-        [ '-', 2, 'ijkl'           ],
-        [ '-', 3, 'mnopqrstuvwxyz' ] ]
+      [
+        ['-', 0, 'abcd'],
+        ['-', 1, 'efgh'],
+        ['-', 2, 'ijkl'],
+        ['-', 3, 'mnopqrstuvwxyz']
+      ]
     ]
 
     expect(change_diff(correct_diff)).to eq(diff)
 
     diff = Diff::LCS.diff([], word_sequence)
-    correct_diff.each { |hunk| hunk.each { |change| change[0] = '+' } }
+    correct_diff.each do |hunk|
+      hunk.each do |change| change[0] = '+' end
+    end
     expect(change_diff(correct_diff)).to eq(diff)
   end
 
@@ -37,11 +41,11 @@ describe Diff::LCS, ".diff" do
     expect(Diff::LCS.patch(left, Diff::LCS.diff(left, right))).to eq(right)
   end
 
-  it "returns an empty diff with (hello, hello)" do
+  it 'returns an empty diff with (hello, hello)' do
     expect(Diff::LCS.diff(hello, hello)).to be_empty
   end
 
-  it "returns an empty diff with (hello_ary, hello_ary)" do
+  it 'returns an empty diff with (hello_ary, hello_ary)' do
     expect(Diff::LCS.diff(hello_ary, hello_ary)).to be_empty
   end
 end