329 lines
		
	
	
		
			9.7 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			329 lines
		
	
	
		
			9.7 KiB
		
	
	
	
		
			Go
		
	
	
	
| // Copyright 2022 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package integration
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| 
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| import (
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| 	"context"
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| 	"errors"
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| 	"fmt"
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| 	"net/url"
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| 	"os"
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| 	"path/filepath"
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| 	"reflect"
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| 	"strings"
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| 	"testing"
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| 
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| 	auth_model "code.gitea.io/gitea/models/auth"
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| 	repo_model "code.gitea.io/gitea/models/repo"
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| 	"code.gitea.io/gitea/models/unittest"
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| 	user_model "code.gitea.io/gitea/models/user"
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| 	base "code.gitea.io/gitea/modules/migration"
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| 	"code.gitea.io/gitea/modules/setting"
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| 	"code.gitea.io/gitea/modules/structs"
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| 	"code.gitea.io/gitea/modules/util"
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| 	"code.gitea.io/gitea/services/migrations"
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| 
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| 	"github.com/stretchr/testify/assert"
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| 	"gopkg.in/yaml.v3"
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| )
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| 
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| func TestDumpRestore(t *testing.T) {
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| 	onGiteaRun(t, func(t *testing.T, u *url.URL) {
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| 		AllowLocalNetworks := setting.Migrations.AllowLocalNetworks
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| 		setting.Migrations.AllowLocalNetworks = true
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| 		AppVer := setting.AppVer
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| 		// Gitea SDK (go-sdk) need to parse the AppVer from server response, so we must set it to a valid version string.
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| 		setting.AppVer = "1.16.0"
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| 		defer func() {
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| 			setting.Migrations.AllowLocalNetworks = AllowLocalNetworks
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| 			setting.AppVer = AppVer
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| 		}()
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| 
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| 		assert.NoError(t, migrations.Init())
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| 
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| 		reponame := "repo1"
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| 
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| 		basePath, err := os.MkdirTemp("", reponame)
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| 		assert.NoError(t, err)
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| 		defer util.RemoveAll(basePath)
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| 
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| 		repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{Name: reponame})
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| 		repoOwner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
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| 		session := loginUser(t, repoOwner.Name)
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| 		token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeRepo)
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| 
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| 		//
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| 		// Phase 1: dump repo1 from the Gitea instance to the filesystem
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| 		//
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| 
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| 		ctx := context.Background()
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| 		opts := migrations.MigrateOptions{
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| 			GitServiceType: structs.GiteaService,
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| 			Issues:         true,
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| 			PullRequests:   true,
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| 			Labels:         true,
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| 			Milestones:     true,
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| 			Comments:       true,
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| 			AuthToken:      token,
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| 			CloneAddr:      repo.CloneLink().HTTPS,
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| 			RepoName:       reponame,
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| 		}
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| 		err = migrations.DumpRepository(ctx, basePath, repoOwner.Name, opts)
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| 		assert.NoError(t, err)
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| 
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| 		//
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| 		// Verify desired side effects of the dump
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| 		//
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| 		d := filepath.Join(basePath, repo.OwnerName, repo.Name)
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| 		for _, f := range []string{"repo.yml", "topic.yml", "label.yml", "milestone.yml", "issue.yml"} {
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| 			assert.FileExists(t, filepath.Join(d, f))
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| 		}
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| 
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| 		//
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| 		// Phase 2: restore from the filesystem to the Gitea instance in restoredrepo
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| 		//
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| 
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| 		newreponame := "restored"
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| 		err = migrations.RestoreRepository(ctx, d, repo.OwnerName, newreponame, []string{
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| 			"labels", "issues", "comments", "milestones", "pull_requests",
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| 		}, false)
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| 		assert.NoError(t, err)
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| 
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| 		newrepo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{Name: newreponame})
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| 
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| 		//
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| 		// Phase 3: dump restored from the Gitea instance to the filesystem
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| 		//
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| 		opts.RepoName = newreponame
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| 		opts.CloneAddr = newrepo.CloneLink().HTTPS
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| 		err = migrations.DumpRepository(ctx, basePath, repoOwner.Name, opts)
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| 		assert.NoError(t, err)
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| 
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| 		//
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| 		// Verify the dump of restored is the same as the dump of repo1
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| 		//
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| 		comparator := &compareDump{
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| 			t:        t,
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| 			basePath: basePath,
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| 		}
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| 		comparator.assertEquals(repo, newrepo)
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| 	})
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| }
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| 
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| type compareDump struct {
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| 	t          *testing.T
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| 	basePath   string
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| 	repoBefore *repo_model.Repository
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| 	dirBefore  string
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| 	repoAfter  *repo_model.Repository
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| 	dirAfter   string
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| }
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| 
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| type compareField struct {
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| 	before    interface{}
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| 	after     interface{}
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| 	ignore    bool
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| 	transform func(string) string
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| 	nested    *compareFields
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| }
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| 
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| type compareFields map[string]compareField
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| 
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| func (c *compareDump) replaceRepoName(original string) string {
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| 	return strings.ReplaceAll(original, c.repoBefore.Name, c.repoAfter.Name)
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| }
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| 
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| func (c *compareDump) assertEquals(repoBefore, repoAfter *repo_model.Repository) {
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| 	c.repoBefore = repoBefore
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| 	c.dirBefore = filepath.Join(c.basePath, repoBefore.OwnerName, repoBefore.Name)
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| 	c.repoAfter = repoAfter
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| 	c.dirAfter = filepath.Join(c.basePath, repoAfter.OwnerName, repoAfter.Name)
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| 
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| 	//
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| 	// base.Repository
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| 	//
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| 	_ = c.assertEqual("repo.yml", base.Repository{}, compareFields{
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| 		"Name": {
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| 			before: c.repoBefore.Name,
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| 			after:  c.repoAfter.Name,
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| 		},
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| 		"CloneURL":    {transform: c.replaceRepoName},
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| 		"OriginalURL": {transform: c.replaceRepoName},
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| 	})
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| 
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| 	//
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| 	// base.Label
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| 	//
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| 	labels, ok := c.assertEqual("label.yml", []base.Label{}, compareFields{}).([]*base.Label)
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| 	assert.True(c.t, ok)
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| 	assert.GreaterOrEqual(c.t, len(labels), 1)
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| 
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| 	//
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| 	// base.Milestone
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| 	//
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| 	milestones, ok := c.assertEqual("milestone.yml", []base.Milestone{}, compareFields{
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| 		"Updated": {ignore: true}, // the database updates that field independently
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| 	}).([]*base.Milestone)
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| 	assert.True(c.t, ok)
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| 	assert.GreaterOrEqual(c.t, len(milestones), 1)
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| 
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| 	//
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| 	// base.Issue and the associated comments
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| 	//
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| 	issues, ok := c.assertEqual("issue.yml", []base.Issue{}, compareFields{
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| 		"Assignees": {ignore: true}, // not implemented yet
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| 	}).([]*base.Issue)
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| 	assert.True(c.t, ok)
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| 	assert.GreaterOrEqual(c.t, len(issues), 1)
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| 	for _, issue := range issues {
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| 		filename := filepath.Join("comments", fmt.Sprintf("%d.yml", issue.Number))
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| 		comments, ok := c.assertEqual(filename, []base.Comment{}, compareFields{
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| 			"Index": {ignore: true},
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| 		}).([]*base.Comment)
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| 		assert.True(c.t, ok)
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| 		for _, comment := range comments {
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| 			assert.EqualValues(c.t, issue.Number, comment.IssueIndex)
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| 		}
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| 	}
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| 
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| 	//
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| 	// base.PullRequest and the associated comments
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| 	//
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| 	comparePullRequestBranch := &compareFields{
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| 		"RepoName": {
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| 			before: c.repoBefore.Name,
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| 			after:  c.repoAfter.Name,
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| 		},
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| 		"CloneURL": {transform: c.replaceRepoName},
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| 	}
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| 	prs, ok := c.assertEqual("pull_request.yml", []base.PullRequest{}, compareFields{
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| 		"Assignees": {ignore: true}, // not implemented yet
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| 		"Head":      {nested: comparePullRequestBranch},
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| 		"Base":      {nested: comparePullRequestBranch},
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| 		"Labels":    {ignore: true}, // because org labels are not handled properly
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| 	}).([]*base.PullRequest)
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| 	assert.True(c.t, ok)
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| 	assert.GreaterOrEqual(c.t, len(prs), 1)
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| 	for _, pr := range prs {
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| 		filename := filepath.Join("comments", fmt.Sprintf("%d.yml", pr.Number))
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| 		comments, ok := c.assertEqual(filename, []base.Comment{}, compareFields{}).([]*base.Comment)
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| 		assert.True(c.t, ok)
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| 		for _, comment := range comments {
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| 			assert.EqualValues(c.t, pr.Number, comment.IssueIndex)
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| 		}
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| 	}
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| }
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| 
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| func (c *compareDump) assertLoadYAMLFiles(beforeFilename, afterFilename string, before, after interface{}) {
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| 	_, beforeErr := os.Stat(beforeFilename)
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| 	_, afterErr := os.Stat(afterFilename)
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| 	assert.EqualValues(c.t, errors.Is(beforeErr, os.ErrNotExist), errors.Is(afterErr, os.ErrNotExist))
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| 	if errors.Is(beforeErr, os.ErrNotExist) {
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| 		return
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| 	}
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| 
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| 	beforeBytes, err := os.ReadFile(beforeFilename)
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| 	assert.NoError(c.t, err)
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| 	assert.NoError(c.t, yaml.Unmarshal(beforeBytes, before))
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| 	afterBytes, err := os.ReadFile(afterFilename)
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| 	assert.NoError(c.t, err)
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| 	assert.NoError(c.t, yaml.Unmarshal(afterBytes, after))
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| }
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| 
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| func (c *compareDump) assertLoadFiles(beforeFilename, afterFilename string, t reflect.Type) (before, after reflect.Value) {
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| 	var beforePtr, afterPtr reflect.Value
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| 	if t.Kind() == reflect.Slice {
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| 		//
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| 		// Given []Something{} create afterPtr, beforePtr []*Something{}
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| 		//
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| 		sliceType := reflect.SliceOf(reflect.PtrTo(t.Elem()))
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| 		beforeSlice := reflect.MakeSlice(sliceType, 0, 10)
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| 		beforePtr = reflect.New(beforeSlice.Type())
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| 		beforePtr.Elem().Set(beforeSlice)
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| 		afterSlice := reflect.MakeSlice(sliceType, 0, 10)
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| 		afterPtr = reflect.New(afterSlice.Type())
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| 		afterPtr.Elem().Set(afterSlice)
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| 	} else {
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| 		//
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| 		// Given Something{} create afterPtr, beforePtr *Something{}
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| 		//
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| 		beforePtr = reflect.New(t)
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| 		afterPtr = reflect.New(t)
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| 	}
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| 	c.assertLoadYAMLFiles(beforeFilename, afterFilename, beforePtr.Interface(), afterPtr.Interface())
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| 	return beforePtr.Elem(), afterPtr.Elem()
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| }
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| 
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| func (c *compareDump) assertEqual(filename string, kind interface{}, fields compareFields) (i interface{}) {
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| 	beforeFilename := filepath.Join(c.dirBefore, filename)
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| 	afterFilename := filepath.Join(c.dirAfter, filename)
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| 
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| 	typeOf := reflect.TypeOf(kind)
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| 	before, after := c.assertLoadFiles(beforeFilename, afterFilename, typeOf)
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| 	if typeOf.Kind() == reflect.Slice {
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| 		i = c.assertEqualSlices(before, after, fields)
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| 	} else {
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| 		i = c.assertEqualValues(before, after, fields)
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| 	}
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| 	return i
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| }
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| 
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| func (c *compareDump) assertEqualSlices(before, after reflect.Value, fields compareFields) interface{} {
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| 	assert.EqualValues(c.t, before.Len(), after.Len())
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| 	if before.Len() == after.Len() {
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| 		for i := 0; i < before.Len(); i++ {
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| 			_ = c.assertEqualValues(
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| 				reflect.Indirect(before.Index(i).Elem()),
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| 				reflect.Indirect(after.Index(i).Elem()),
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| 				fields)
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| 		}
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| 	}
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| 	return after.Interface()
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| }
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| 
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| func (c *compareDump) assertEqualValues(before, after reflect.Value, fields compareFields) interface{} {
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| 	for _, field := range reflect.VisibleFields(before.Type()) {
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| 		bf := before.FieldByName(field.Name)
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| 		bi := bf.Interface()
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| 		af := after.FieldByName(field.Name)
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| 		ai := af.Interface()
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| 		if compare, ok := fields[field.Name]; ok {
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| 			if compare.ignore == true {
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| 				//
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| 				// Ignore
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| 				//
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| 				continue
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| 			}
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| 			if compare.transform != nil {
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| 				//
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| 				// Transform these strings before comparing them
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| 				//
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| 				bs, ok := bi.(string)
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| 				assert.True(c.t, ok)
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| 				as, ok := ai.(string)
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| 				assert.True(c.t, ok)
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| 				assert.EqualValues(c.t, compare.transform(bs), compare.transform(as))
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| 				continue
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| 			}
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| 			if compare.before != nil && compare.after != nil {
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| 				//
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| 				// The fields are expected to have different values
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| 				//
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| 				assert.EqualValues(c.t, compare.before, bi)
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| 				assert.EqualValues(c.t, compare.after, ai)
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| 				continue
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| 			}
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| 			if compare.nested != nil {
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| 				//
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| 				// The fields are a struct, recurse
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| 				//
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| 				c.assertEqualValues(bf, af, *compare.nested)
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| 				continue
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| 			}
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| 		}
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| 		assert.EqualValues(c.t, bi, ai)
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| 	}
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| 	return after.Interface()
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| }
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