1 files changed, 31 insertions, 0 deletions
diff --git a/spec/support/shared_examples/workers/idempotency_shared_examples.rb b/spec/support/shared_examples/workers/idempotency_shared_examples.rb
new file mode 100644
index 00000000000..19be1fe2c9d
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+++ b/spec/support/shared_examples/workers/idempotency_shared_examples.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+# This shared_example requires the following variables:
+# - job_args (if not given, will fallback to call perform without arguments)
+#
+# Usage:
+#
+#   include_examples 'an idempotent worker' do
+#     it 'checks the side-effects for multiple calls' do
+#       # it'll call the job's perform method 3 times
+#       # by default.
+#       subject
+#
+#       expect(model.state).to eq('state')
+#     end
+#   end
+#
+RSpec.shared_examples 'an idempotent worker' do
+  # Avoid stubbing calls for a more accurate run.
+  subject do
+    defined?(job_args) ? perform_multiple(job_args) : perform_multiple
+  end
+
+  it 'is labeled as idempotent' do
+    expect(described_class).to be_idempotent
+  end
+
+  it 'performs multiple times sequentially without raising an exception' do
+    expect { subject }.not_to raise_error
+  end
+end