Add integration tests for the Gitea migration form (#20121)

* tests: integration tests for the Gitea migration form

* use a mix of ` and " instead of backslash

https://github.com/go-gitea/gitea/pull/20121#discussion_r906729415

Co-authored-by: Loïc Dachary <loic@dachary.org>

integrations/migrate_test.go

@@ -5,12 +5,17 @@
 package integrations
 
 import (
+	"fmt"
+	"net/http"
+	"net/url"
 	"os"
 	"testing"
 
+	repo_model "code.gitea.io/gitea/models/repo"
 	"code.gitea.io/gitea/models/unittest"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/services/migrations"
 
 	"github.com/stretchr/testify/assert"
@@ -40,3 +45,54 @@ func TestMigrateLocalPath(t *testing.T) {
 
 	setting.ImportLocalPaths = old
 }
+
+func TestMigrateGiteaForm(t *testing.T) {
+	onGiteaRun(t, func(t *testing.T, u *url.URL) {
+		AllowLocalNetworks := setting.Migrations.AllowLocalNetworks
+		setting.Migrations.AllowLocalNetworks = true
+		AppVer := setting.AppVer
+		// Gitea SDK (go-sdk) need to parse the AppVer from server response, so we must set it to a valid version string.
+		setting.AppVer = "1.16.0"
+		defer func() {
+			setting.Migrations.AllowLocalNetworks = AllowLocalNetworks
+			setting.AppVer = AppVer
+			migrations.Init()
+		}()
+		assert.NoError(t, migrations.Init())
+
+		ownerName := "user2"
+		repoName := "repo1"
+		repoOwner := unittest.AssertExistsAndLoadBean(t, &user_model.User{Name: ownerName}).(*user_model.User)
+		session := loginUser(t, ownerName)
+		token := getTokenForLoggedInUser(t, session)
+
+		// Step 0: verify the repo is available
+		req := NewRequestf(t, "GET", fmt.Sprintf("/%s/%s", ownerName, repoName))
+		_ = session.MakeRequest(t, req, http.StatusOK)
+		// Step 1: get the Gitea migration form
+		req = NewRequestf(t, "GET", "/repo/migrate/?service_type=%d", structs.GiteaService)
+		resp := session.MakeRequest(t, req, http.StatusOK)
+		// Step 2: load the form
+		htmlDoc := NewHTMLParser(t, resp.Body)
+		link, exists := htmlDoc.doc.Find(`form.ui.form[action^="/repo/migrate"]`).Attr("action")
+		assert.True(t, exists, "The template has changed")
+		// Step 4: submit the migration to only migrate issues
+		migratedRepoName := "otherrepo"
+		req = NewRequestWithValues(t, "POST", link, map[string]string{
+			"_csrf":       htmlDoc.GetCSRF(),
+			"service":     fmt.Sprintf("%d", structs.GiteaService),
+			"clone_addr":  fmt.Sprintf("%s%s/%s", u, ownerName, repoName),
+			"auth_token":  token,
+			"issues":      "on",
+			"repo_name":   migratedRepoName,
+			"description": "",
+			"uid":         fmt.Sprintf("%d", repoOwner.ID),
+		})
+		resp = session.MakeRequest(t, req, http.StatusSeeOther)
+		// Step 5: a redirection displays the migrated repository
+		loc := resp.Header().Get("Location")
+		assert.EqualValues(t, fmt.Sprintf("/%s/%s", ownerName, migratedRepoName), loc)
+		// Step 6: check the repo was created
+		unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{Name: migratedRepoName})
+	})
+}