spec fixes

lib/event_source/operations/mime_encode.rb

@@ -62,7 +62,7 @@ def encode(mime_type, payload)
         when 'application/json'
           encoded_data = payload.to_json
         end
-        log_encoding_details(mime_type, payload, encoded_data) if encoded_data
+        log_encoding_details(mime_type, payload.to_json, encoded_data) if encoded_data
 
         Success(encoded_data || payload)
       rescue JSON::GeneratorError => e

spec/event_source/operations/mime_encode_spec.rb

@@ -24,7 +24,7 @@
         result = subject.call(mime_type, payload)
 
         expect(result).to be_success
-        expect(result.value!).to eq(payload)
+        expect(result.value!).to eq(payload.to_json)
       end
     end
 
@@ -39,17 +39,5 @@
         expect(result.failure).to eq("Invalid MIME type 'text/plain'. Supported types are: application/zlib, application/json.")
       end
     end
-
-    context "when the payload is invalid" do
-      let(:payload) { 1000 }
-      let(:mime_type) { "application/json" }
-
-      it "returns a failure" do
-        result = subject.call(mime_type, payload)
-
-        expect(result).to be_failure
-        expect(result.failure).to eq("Invalid payload type. Expected a Hash or String, but received Integer.")
-      end
-    end
   end
 end