1 files changed, 38 insertions, 0 deletions
diff --git a/spec/rubocop/cop/scalability/idempotent_worker_spec.rb b/spec/rubocop/cop/scalability/idempotent_worker_spec.rb
new file mode 100644
index 00000000000..7abd602f8bc
--- /dev/null
+++ b/spec/rubocop/cop/scalability/idempotent_worker_spec.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+require 'rubocop'
+require_relative '../../../support/helpers/expect_offense'
+require_relative '../../../../rubocop/cop/scalability/idempotent_worker'
+
+describe RuboCop::Cop::Scalability::IdempotentWorker do
+  include CopHelper
+  include ExpectOffense
+
+  subject(:cop) { described_class.new }
+
+  before do
+    allow(cop)
+      .to receive(:in_worker?)
+      .and_return(true)
+  end
+
+  it 'adds an offense when not defining idempotent method' do
+    inspect_source(<<~CODE.strip_indent)
+      class SomeWorker
+      end
+    CODE
+
+    expect(cop.offenses.size).to eq(1)
+  end
+
+  it 'adds an offense when not defining idempotent method' do
+    inspect_source(<<~CODE.strip_indent)
+      class SomeWorker
+        idempotent!
+      end
+    CODE
+
+    expect(cop.offenses.size).to be_zero
+  end
+end