spec/configuration_spec.rb in pheme-3.0.1 vs spec/configuration_spec.rb in pheme-3.1.0

@@ -17,6 +17,37 @@
       expect(described_class.configuration.sns_client).to eq(sns_client)
       expect(described_class.configuration.sqs_client).to eq(sqs_client)
       expect(described_class.configuration.logger).to eq(custom_logger)
     end
   end
+
+  describe Pheme::Configuration do
+    describe '.validate!' do
+      subject { configuration.validate! }
+
+      let(:configuration) { Pheme::Configuration.new }
+
+      context 'empty configuration' do
+        it 'is invalid when empty' do
+          expect { subject }.to raise_error(StandardError)
+        end
+      end
+
+      context 'all mandatory attributes provided' do
+        let(:sns_client) { instance_double('Aws::SNS::Client') }
+        let(:sqs_client) { instance_double('Aws::SQS::Client') }
+
+        before do
+          allow(sns_client).to receive(:is_a?).with(Aws::SNS::Client).and_return(true)
+          allow(sqs_client).to receive(:is_a?).with(Aws::SQS::Client).and_return(true)
+
+          configuration.sns_client = sns_client
+          configuration.sqs_client = sqs_client
+        end
+
+        it 'is valid' do
+          expect { subject }.not_to raise_error
+        end
+      end
+    end
+  end
 end