1 files changed, 152 insertions, 0 deletions
diff --git a/spec/rubocop/cop/migration/schedule_async_spec.rb b/spec/rubocop/cop/migration/schedule_async_spec.rb
new file mode 100644
index 00000000000..3453f1c51cc
--- /dev/null
+++ b/spec/rubocop/cop/migration/schedule_async_spec.rb
@@ -0,0 +1,152 @@
+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+
+require 'rubocop'
+require 'rubocop/rspec/support'
+
+require_relative '../../../../rubocop/cop/migration/schedule_async'
+
+describe RuboCop::Cop::Migration::ScheduleAsync do
+  include CopHelper
+
+  let(:cop) { described_class.new }
+  let(:source) do
+    <<~SOURCE
+      def up
+        BackgroundMigrationWorker.perform_async(ClazzName, "Bar", "Baz")
+      end
+    SOURCE
+  end
+
+  shared_examples 'a disabled cop' do
+    it 'does not register any offenses' do
+      inspect_source(source)
+
+      expect(cop.offenses).to be_empty
+    end
+  end
+
+  context 'outside of a migration' do
+    it_behaves_like 'a disabled cop'
+  end
+
+  context 'in a migration' do
+    before do
+      allow(cop).to receive(:in_migration?).and_return(true)
+    end
+
+    context 'in an old migration' do
+      before do
+        allow(cop).to receive(:version).and_return(described_class::ENFORCED_SINCE - 5)
+      end
+
+      it_behaves_like 'a disabled cop'
+    end
+
+    context 'that is recent' do
+      before do
+        allow(cop).to receive(:version).and_return(described_class::ENFORCED_SINCE + 5)
+      end
+
+      context 'BackgroundMigrationWorker.perform_async' do
+        it 'adds an offence when calling `BackgroundMigrationWorker.peform_async`' do
+          inspect_source(source)
+
+          expect(cop.offenses.size).to eq(1)
+        end
+
+        it 'autocorrects to the right version' do
+          correct_source = <<~CORRECT
+          def up
+            migrate_async(ClazzName, "Bar", "Baz")
+          end
+          CORRECT
+
+          expect(autocorrect_source(source)).to eq(correct_source)
+        end
+      end
+
+      context 'BackgroundMigrationWorker.perform_in' do
+        let(:source) do
+          <<~SOURCE
+            def up
+              BackgroundMigrationWorker
+                .perform_in(delay, ClazzName, "Bar", "Baz")
+            end
+          SOURCE
+        end
+
+        it 'adds an offence' do
+          inspect_source(source)
+
+          expect(cop.offenses.size).to eq(1)
+        end
+
+        it 'autocorrects to the right version' do
+          correct_source = <<~CORRECT
+            def up
+              migrate_in(delay, ClazzName, "Bar", "Baz")
+            end
+          CORRECT
+
+          expect(autocorrect_source(source)).to eq(correct_source)
+        end
+      end
+
+      context 'BackgroundMigrationWorker.bulk_perform_async' do
+        let(:source) do
+          <<~SOURCE
+            def up
+              BackgroundMigrationWorker
+                .bulk_perform_async(jobs)
+            end
+          SOURCE
+        end
+
+        it 'adds an offence' do
+          inspect_source(source)
+
+          expect(cop.offenses.size).to eq(1)
+        end
+
+        it 'autocorrects to the right version' do
+          correct_source = <<~CORRECT
+            def up
+              bulk_migrate_async(jobs)
+            end
+          CORRECT
+
+          expect(autocorrect_source(source)).to eq(correct_source)
+        end
+      end
+
+      context 'BackgroundMigrationWorker.bulk_perform_in' do
+        let(:source) do
+          <<~SOURCE
+            def up
+              BackgroundMigrationWorker
+                .bulk_perform_in(5.minutes, jobs)
+            end
+          SOURCE
+        end
+
+        it 'adds an offence' do
+          inspect_source(source)
+
+          expect(cop.offenses.size).to eq(1)
+        end
+
+        it 'autocorrects to the right version' do
+          correct_source = <<~CORRECT
+            def up
+              bulk_migrate_in(5.minutes, jobs)
+            end
+          CORRECT
+
+          expect(autocorrect_source(source)).to eq(correct_source)
+        end
+      end
+    end
+  end
+end