Move issues related files into models/issues (#19931)

* Move access and repo permission to models/perm/access

* fix test

* fix git test

* Move functions sequence

* Some improvements per @KN4CK3R and @delvh

* Move issues related code to models/issues

* Move some issues related sub package

* Merge

* Fix test

* Fix test

* Fix test

* Fix test

* Rename some files

models/issues/comment_test.go

@@ -0,0 +1,65 @@
+// Copyright 2017 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 issues_test
+
+import (
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	issues_model "code.gitea.io/gitea/models/issues"
+	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCreateComment(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{}).(*issues_model.Issue)
+	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: issue.RepoID}).(*repo_model.Repository)
+	doer := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID}).(*user_model.User)
+
+	now := time.Now().Unix()
+	comment, err := issues_model.CreateComment(&issues_model.CreateCommentOptions{
+		Type:    issues_model.CommentTypeComment,
+		Doer:    doer,
+		Repo:    repo,
+		Issue:   issue,
+		Content: "Hello",
+	})
+	assert.NoError(t, err)
+	then := time.Now().Unix()
+
+	assert.EqualValues(t, issues_model.CommentTypeComment, comment.Type)
+	assert.EqualValues(t, "Hello", comment.Content)
+	assert.EqualValues(t, issue.ID, comment.IssueID)
+	assert.EqualValues(t, doer.ID, comment.PosterID)
+	unittest.AssertInt64InRange(t, now, then, int64(comment.CreatedUnix))
+	unittest.AssertExistsAndLoadBean(t, comment) // assert actually added to DB
+
+	updatedIssue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: issue.ID}).(*issues_model.Issue)
+	unittest.AssertInt64InRange(t, now, then, int64(updatedIssue.UpdatedUnix))
+}
+
+func TestFetchCodeComments(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 2}).(*issues_model.Issue)
+	user := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 1}).(*user_model.User)
+	res, err := issues_model.FetchCodeComments(db.DefaultContext, issue, user)
+	assert.NoError(t, err)
+	assert.Contains(t, res, "README.md")
+	assert.Contains(t, res["README.md"], int64(4))
+	assert.Len(t, res["README.md"][4], 1)
+	assert.Equal(t, int64(4), res["README.md"][4][0].ID)
+
+	user2 := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: 2}).(*user_model.User)
+	res, err = issues_model.FetchCodeComments(db.DefaultContext, issue, user2)
+	assert.NoError(t, err)
+	assert.Len(t, res, 1)
+}