Add Rubocop rule to ban include ActionView::Context

1 files changed, 45 insertions, 0 deletions

diff --git a/spec/rubocop/cop/include_action_view_context_spec.rb b/spec/rubocop/cop/include_action_view_context_spec.rb
new file mode 100644
index 00000000000..c888555b54f
--- /dev/null
+++ b/spec/rubocop/cop/include_action_view_context_spec.rb
@@ -0,0 +1,45 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+require 'rubocop'
+require 'rubocop/rspec/support'
+
+require_relative '../../../rubocop/cop/include_action_view_context'
+
+describe RuboCop::Cop::IncludeActionViewContext do
+  include CopHelper
+
+  subject(:cop) { described_class.new }
+
+  context 'when `ActionView::Context` is included' do
+    let(:source) { 'include ActionView::Context' }
+    let(:correct_source) { 'include ::Gitlab::ActionViewOutput::Context' }
+
+    it 'registers an offense' do
+      inspect_source(source)
+
+      aggregate_failures do
+        expect(cop.offenses.size).to eq(1)
+        expect(cop.offenses.map(&:line)).to eq([1])
+        expect(cop.highlights).to eq(['ActionView::Context'])
+      end
+    end
+
+    it 'autocorrects to the right version' do
+      autocorrected = autocorrect_source(source)
+
+      expect(autocorrected).to eq(correct_source)
+    end
+  end
+
+  context 'when `ActionView::Context` is not included' do
+    it 'registers no offense' do
+      inspect_source('include Context')
+
+      aggregate_failures do
+        expect(cop.offenses.size).to eq(0)
+      end
+    end
+  end
+end