1 files changed, 34 insertions, 0 deletions
diff --git a/spec/support/shared_examples/graphql/mutation_shared_examples.rb b/spec/support/shared_examples/graphql/mutation_shared_examples.rb
new file mode 100644
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+++ b/spec/support/shared_examples/graphql/mutation_shared_examples.rb
@@ -0,0 +1,34 @@
+# frozen_string_literal: true
+
+# Shared example for expecting top-level errors.
+# See https://graphql-ruby.org/mutations/mutation_errors#raising-errors
+#
+#   { errors: [] }
+#
+# There must be a method or let called `mutation` defined that executes
+# the mutation.
+RSpec.shared_examples 'a mutation that returns top-level errors' do |errors:|
+  it do
+    post_graphql_mutation(mutation, current_user: current_user)
+
+    error_messages = graphql_errors.map { |e| e['message'] }
+
+    expect(error_messages).to eq(errors)
+  end
+end
+
+# Shared example for expecting schema-level errors.
+# See https://graphql-ruby.org/mutations/mutation_errors#errors-as-data
+#
+#   { data: { mutationName: { errors: [] } } }
+#
+# There must be:
+# - a method or let called `mutation` defined that executes the mutation
+# - a `mutation_response` method defined that returns the data of the mutation response.
+RSpec.shared_examples 'a mutation that returns errors in the response' do |errors:|
+  it do
+    post_graphql_mutation(mutation, current_user: current_user)
+
+    expect(mutation_response['errors']).to eq(errors)
+  end
+end