Don't return an empty object if Mojang's textures don't contain any skin or cape

CHANGELOG.md

@@ -32,6 +32,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - `ely.skinsystem.{hostname}.app.mojang_textures.usernames.iteration_size` and
   `ely.skinsystem.{hostname}.app.mojang_textures.usernames.queue_size` are now updates even if the queue is empty.
+- Don't return an empty object if Mojang's textures don't contain any skin or cape.
 
 ### Changed
 - **BREAKING**: `QUEUE_LOOP_DELAY` param is now sets as a Go duration, not milliseconds.

http/skinsystem.go

@@ -169,7 +169,10 @@ func (ctx *Skinsystem) texturesHandler(response http.ResponseWriter, request *ht
 		}
 
 		textures = texturesProp.Textures
-		// TODO: return 204 in case when there is no skin and cape on mojang textures
+		if textures.Skin == nil && textures.Cape == nil {
+			response.WriteHeader(http.StatusNoContent)
+			return
+		}
 	}
 
 	responseData, _ := json.Marshal(textures)

http/skinsystem_test.go

@@ -455,6 +455,17 @@ var texturesTestsCases = []*skinsystemTestCase{
 			}`, string(body))
 		},
 	},
+	{
+		Name: "Username not exists, but Mojang profile available, but there is no textures",
+		BeforeTest: func(suite *skinsystemTestSuite) {
+			suite.SkinsRepository.On("FindByUsername", "mock_username").Return(nil, nil)
+			suite.CapesRepository.On("FindByUsername", "mock_username").Return(nil, nil)
+			suite.MojangTexturesProvider.On("GetForUsername", "mock_username").Once().Return(createMojangResponse(false, false), nil)
+		},
+		AfterTest: func(suite *skinsystemTestSuite, response *http.Response) {
+			suite.Equal(204, response.StatusCode)
+		},
+	},
 	{
 		Name: "Username not exists and Mojang profile unavailable",
 		BeforeTest: func(suite *skinsystemTestSuite) {
@@ -464,6 +475,8 @@ var texturesTestsCases = []*skinsystemTestCase{
 		},
 		AfterTest: func(suite *skinsystemTestSuite, response *http.Response) {
 			suite.Equal(204, response.StatusCode)
+			body, _ := ioutil.ReadAll(response.Body)
+			suite.Equal("", string(body))
 		},
 	},
 }