Refactor List/SetRepoTopics (#276)

Co-authored-by: 6543 <6543@obermui.de>
Reviewed-on: https://gitea.com/gitea/go-sdk/pulls/276
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-by: Andrew Thornton <art27@cantab.net>

gitea/repo_topics.go

@@ -15,27 +15,33 @@ type ListRepoTopicsOptions struct {
 	ListOptions
 }
 
-// TopicsList represents a list of repo's topics
-type TopicsList struct {
+// topicsList represents a list of repo's topics
+type topicsList struct {
 	Topics []string `json:"topics"`
 }
 
 // ListRepoTopics list all repository's topics
-func (c *Client) ListRepoTopics(user, repo string, opt ListRepoTopicsOptions) (*TopicsList, error) {
+func (c *Client) ListRepoTopics(user, repo string, opt ListRepoTopicsOptions) ([]string, error) {
 	opt.setDefaults()
 
-	var list TopicsList
-	return &list, c.getParsedResponse("GET", fmt.Sprintf("/repos/%s/%s/topics?%s", user, repo, opt.getURLQuery().Encode()), nil, nil, &list)
+	list := new(topicsList)
+	err := c.getParsedResponse("GET", fmt.Sprintf("/repos/%s/%s/topics?%s", user, repo, opt.getURLQuery().Encode()), nil, nil, list)
+	if err != nil {
+		return nil, err
+	}
+	return list.Topics, nil
 }
 
 // SetRepoTopics replaces the list of repo's topics
-func (c *Client) SetRepoTopics(user, repo, list TopicsList) error {
-	body, err := json.Marshal(&list)
+func (c *Client) SetRepoTopics(user, repo string, list []string) error {
+
+	l := topicsList{Topics: list}
+
+	body, err := json.Marshal(&l)
 	if err != nil {
 		return err
 	}
-
-	_, err = c.getResponse("PUT", fmt.Sprintf("/repos/%s/%s/topics", user, repo), nil, bytes.NewReader(body))
+	_, err = c.getResponse("PUT", fmt.Sprintf("/repos/%s/%s/topics", user, repo), jsonHeader, bytes.NewReader(body))
 	return err
 }
 

gitea/repo_topics_test.go

@@ -0,0 +1,55 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package gitea
+
+import (
+	"log"
+	"sort"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRepoTopics(t *testing.T) {
+	log.Println("== TestRepoTopics ==")
+	c := newTestClient()
+	repo, err := createTestRepo(t, "RandomTopic", c)
+	assert.NoError(t, err)
+
+	// Add
+	err = c.AddRepoTopic(repo.Owner.UserName, repo.Name, "best")
+	assert.NoError(t, err)
+	err = c.AddRepoTopic(repo.Owner.UserName, repo.Name, "git")
+	assert.NoError(t, err)
+	err = c.AddRepoTopic(repo.Owner.UserName, repo.Name, "gitea")
+	assert.NoError(t, err)
+	err = c.AddRepoTopic(repo.Owner.UserName, repo.Name, "drone")
+	assert.NoError(t, err)
+
+	// Get List
+	tl, err := c.ListRepoTopics(repo.Owner.UserName, repo.Name, ListRepoTopicsOptions{})
+	assert.NoError(t, err)
+	assert.Len(t, tl, 4)
+
+	// Del
+	err = c.DeleteRepoTopic(repo.Owner.UserName, repo.Name, "drone")
+	assert.NoError(t, err)
+	err = c.DeleteRepoTopic(repo.Owner.UserName, repo.Name, "best")
+	assert.NoError(t, err)
+	tl, err = c.ListRepoTopics(repo.Owner.UserName, repo.Name, ListRepoTopicsOptions{})
+	assert.NoError(t, err)
+	assert.Len(t, tl, 2)
+
+	// Set List
+	newTopics := []string{"analog", "digital", "cat"}
+	err = c.SetRepoTopics(repo.Owner.UserName, repo.Name, newTopics)
+	assert.NoError(t, err)
+	tl, _ = c.ListRepoTopics(repo.Owner.UserName, repo.Name, ListRepoTopicsOptions{})
+	assert.Len(t, tl, 3)
+
+	sort.Strings(tl)
+	sort.Strings(newTopics)
+	assert.EqualValues(t, newTopics, tl)
+}