feat(shorebird_code_push_client): add update release support (#851)

packages/shorebird_code_push_client/lib/src/code_push_client.dart

@@ -302,6 +302,27 @@ class CodePushClient {
     return Release.fromJson(body);
   }
 
+  /// Updates the specified release's status to [status].
+  Future<void> updateReleaseStatus({
+    required int releaseId,
+    required String platform,
+    required ReleaseStatus status,
+  }) async {
+    final response = await _httpClient.patch(
+      Uri.parse('$_v1/releases/$releaseId'),
+      body: json.encode(
+        UpdateReleaseRequest(
+          status: status,
+          platform: platform,
+        ).toJson(),
+      ),
+    );
+
+    if (response.statusCode != HttpStatus.noContent) {
+      throw _parseErrorResponse(response.statusCode, response.body);
+    }
+  }
+
   /// Remove [userId] as a collaborator from [appId].
   Future<void> deleteCollaborator({
     required String appId,

packages/shorebird_code_push_client/test/src/code_push_client_test.dart

@@ -1136,6 +1136,69 @@ void main() {
       });
     });
 
+    group('updateReleaseStatus', () {
+      const releaseId = 42;
+      const platform = 'android';
+
+      test('makes the correct request', () async {
+        codePushClient
+            .updateReleaseStatus(
+              releaseId: releaseId,
+              platform: platform,
+              status: ReleaseStatus.active,
+            )
+            .ignore();
+        final request = verify(() => httpClient.send(captureAny()))
+            .captured
+            .single as http.BaseRequest;
+        expect(request.method, equals('PATCH'));
+        expect(request.url, equals(v1('releases/$releaseId')));
+        expect(request.hasStandardHeaders, isTrue);
+      });
+
+      test('throws an exception if the response is not a 204', () async {
+        when(() => httpClient.send(any())).thenAnswer(
+          (_) async => http.StreamedResponse(
+            const Stream.empty(),
+            HttpStatus.badRequest,
+          ),
+        );
+
+        expect(
+          codePushClient.updateReleaseStatus(
+            releaseId: releaseId,
+            platform: platform,
+            status: ReleaseStatus.active,
+          ),
+          throwsA(
+            isA<CodePushException>().having(
+              (e) => e.message,
+              'message',
+              CodePushClient.unknownErrorMessage,
+            ),
+          ),
+        );
+      });
+
+      test('completes when the server responds with a 204', () async {
+        when(() => httpClient.send(any())).thenAnswer(
+          (_) async => http.StreamedResponse(
+            const Stream.empty(),
+            HttpStatus.noContent,
+          ),
+        );
+
+        expect(
+          codePushClient.updateReleaseStatus(
+            releaseId: releaseId,
+            platform: platform,
+            status: ReleaseStatus.active,
+          ),
+          completes,
+        );
+      });
+    });
+
     group('deleteCollaborator', () {
       const appId = 'test-app-id';
       const userId = 42;