1 files changed, 10 insertions, 17 deletions
diff --git a/spec/rubocop/cop/migration/add_concurrent_index_spec.rb b/spec/rubocop/cop/migration/add_concurrent_index_spec.rb
index 351283a230a..52b3a5769ff 100644
--- a/spec/rubocop/cop/migration/add_concurrent_index_spec.rb
+++ b/spec/rubocop/cop/migration/add_concurrent_index_spec.rb
@@ -1,40 +1,33 @@
 # frozen_string_literal: true
 
 require 'fast_spec_helper'
-require 'rubocop'
 require_relative '../../../../rubocop/cop/migration/add_concurrent_index'
 
 RSpec.describe RuboCop::Cop::Migration::AddConcurrentIndex do
-  include CopHelper
-
   subject(:cop) { described_class.new }
 
-  context 'in migration' do
+  context 'when in migration' do
     before do
       allow(cop).to receive(:in_migration?).and_return(true)
     end
 
     it 'registers an offense when add_concurrent_index is used inside a change method' do
-      inspect_source('def change; add_concurrent_index :table, :column; end')
-
-      aggregate_failures do
-        expect(cop.offenses.size).to eq(1)
-        expect(cop.offenses.map(&:line)).to eq([1])
-      end
+      expect_offense(<<~RUBY)
+        def change
+            ^^^^^^ `add_concurrent_index` is not reversible[...]
+          add_concurrent_index :table, :column
+        end
+      RUBY
     end
 
     it 'registers no offense when add_concurrent_index is used inside an up method' do
-      inspect_source('def up; add_concurrent_index :table, :column; end')
-
-      expect(cop.offenses.size).to eq(0)
+      expect_no_offenses('def up; add_concurrent_index :table, :column; end')
     end
   end
 
-  context 'outside of migration' do
+  context 'when outside of migration' do
     it 'registers no offense' do
-      inspect_source('def change; add_concurrent_index :table, :column; end')
-
-      expect(cop.offenses.size).to eq(0)
+      expect_no_offenses('def change; add_concurrent_index :table, :column; end')
     end
   end
 end