From 8acbaa9f99c4c6e4299102733fc7d9d01554a7d2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Klemen=20Tu=C5=A1ar?= <techouse@gmail.com>
Date: Sun, 11 Dec 2022 12:47:58 +0000
Subject: [PATCH] :white_check_mark: Test multipart image data upload

---
 chopper/pubspec.yaml                   |  1 +
 chopper/test/multipart_test.dart       | 24 ++++++++++++++++++++++++
 chopper/test/test_service.chopper.dart | 19 +++++++++++++++++++
 chopper/test/test_service.dart         |  6 ++++++
 4 files changed, 50 insertions(+)

diff --git a/chopper/pubspec.yaml b/chopper/pubspec.yaml
index 51d7abcd..4578345c 100644
--- a/chopper/pubspec.yaml
+++ b/chopper/pubspec.yaml
@@ -21,5 +21,6 @@ dev_dependencies:
   http_parser: ^4.0.0
   lints: ^2.0.0
   test: ^1.16.4
+  transparent_image: ^2.0.0
   chopper_generator:
     path: ../chopper_generator
diff --git a/chopper/test/multipart_test.dart b/chopper/test/multipart_test.dart
index 9bffea50..ebb8af90 100644
--- a/chopper/test/multipart_test.dart
+++ b/chopper/test/multipart_test.dart
@@ -3,6 +3,7 @@ import 'package:http/http.dart' as http;
 import 'package:http/testing.dart';
 import 'package:http_parser/http_parser.dart';
 import 'package:test/test.dart';
+import 'package:transparent_image/transparent_image.dart';
 
 import 'test_service.dart';
 
@@ -66,6 +67,29 @@ void main() {
 
       chopper.dispose();
     });
+
+    test('image', () async {
+      final httpClient = MockClient((http.Request req) async {
+        final String body = String.fromCharCodes(req.bodyBytes);
+
+        expect(req.headers['Content-Type'], contains('multipart/form-data;'));
+        expect(body, contains('content-type: application/octet-stream'));
+        expect(body, contains('content-disposition: form-data; name="image"'));
+        expect(
+          body,
+          contains(String.fromCharCodes(kTransparentImage)),
+        );
+
+        return http.Response('ok', 200);
+      });
+
+      final chopper = ChopperClient(client: httpClient);
+      final service = HttpTestService.create(chopper);
+
+      await service.postImage(kTransparentImage);
+
+      chopper.dispose();
+    });
   });
 
   test('file with MultipartFile', () async {
diff --git a/chopper/test/test_service.chopper.dart b/chopper/test/test_service.chopper.dart
index 97ce5db3..f93398a5 100644
--- a/chopper/test/test_service.chopper.dart
+++ b/chopper/test/test_service.chopper.dart
@@ -411,6 +411,25 @@ class _$HttpTestService extends HttpTestService {
     return client.send<dynamic, dynamic>($request);
   }
 
+  @override
+  Future<Response<dynamic>> postImage(List<int> imageData) {
+    final Uri $url = Uri.parse('/test/image');
+    final List<PartValue> $parts = <PartValue>[
+      PartValueFile<List<int>>(
+        'image',
+        imageData,
+      )
+    ];
+    final Request $request = Request(
+      'POST',
+      $url,
+      client.baseUrl,
+      parts: $parts,
+      multipart: true,
+    );
+    return client.send<dynamic, dynamic>($request);
+  }
+
   @override
   Future<Response<dynamic>> postMultipartFile(
     MultipartFile file, {
diff --git a/chopper/test/test_service.dart b/chopper/test/test_service.dart
index 7d19418c..6257f43a 100644
--- a/chopper/test/test_service.dart
+++ b/chopper/test/test_service.dart
@@ -119,6 +119,12 @@ abstract class HttpTestService extends ChopperService {
     @PartFile('file') List<int> bytes,
   );
 
+  @Post(path: 'image')
+  @multipart
+  Future<Response> postImage(
+    @PartFile('image') List<int> imageData,
+  );
+
   @Post(path: 'file')
   @multipart
   Future<Response> postMultipartFile(