1 files changed, 79 insertions, 0 deletions
diff --git a/services/mailer/mail_admin_new_user_test.go b/services/mailer/mail_admin_new_user_test.go
new file mode 100644
index 0000000..f7f2783
--- /dev/null
+++ b/services/mailer/mail_admin_new_user_test.go
@@ -0,0 +1,79 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package mailer
+
+import (
+	"context"
+	"strconv"
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func getTestUsers(t *testing.T) []*user_model.User {
+	t.Helper()
+	admin := new(user_model.User)
+	admin.Name = "testadmin"
+	admin.IsAdmin = true
+	admin.Language = "en_US"
+	admin.Email = "admin@example.com"
+	require.NoError(t, user_model.CreateUser(db.DefaultContext, admin))
+
+	newUser := new(user_model.User)
+	newUser.Name = "new_user"
+	newUser.Language = "en_US"
+	newUser.IsAdmin = false
+	newUser.Email = "new_user@example.com"
+	newUser.LastLoginUnix = 1693648327
+	newUser.CreatedUnix = 1693648027
+	require.NoError(t, user_model.CreateUser(db.DefaultContext, newUser))
+
+	return []*user_model.User{admin, newUser}
+}
+
+func cleanUpUsers(ctx context.Context, users []*user_model.User) {
+	for _, u := range users {
+		db.DeleteByID[user_model.User](ctx, u.ID)
+	}
+}
+
+func TestAdminNotificationMail_test(t *testing.T) {
+	ctx := context.Background()
+
+	users := getTestUsers(t)
+
+	t.Run("SendNotificationEmailOnNewUser_true", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.Admin.SendNotificationEmailOnNewUser, true)()
+
+		called := false
+		defer MockMailSettings(func(msgs ...*Message) {
+			assert.Len(t, msgs, 1, "Test provides only one admin user, so only one email must be sent")
+			assert.Equal(t, msgs[0].To, users[0].Email, "checks if the recipient is the admin of the instance")
+			manageUserURL := setting.AppURL + "admin/users/" + strconv.FormatInt(users[1].ID, 10)
+			assert.Contains(t, msgs[0].Body, manageUserURL)
+			assert.Contains(t, msgs[0].Body, users[1].HTMLURL())
+			assert.Contains(t, msgs[0].Body, users[1].Name, "user name of the newly created user")
+			AssertTranslatedLocale(t, msgs[0].Body, "mail.admin", "admin.users")
+			called = true
+		})()
+		MailNewUser(ctx, users[1])
+		assert.True(t, called)
+	})
+
+	t.Run("SendNotificationEmailOnNewUser_false", func(t *testing.T) {
+		defer test.MockVariableValue(&setting.Admin.SendNotificationEmailOnNewUser, false)()
+		defer MockMailSettings(func(msgs ...*Message) {
+			assert.Equal(t, 1, 0, "this shouldn't execute. MailNewUser must exit early since SEND_NOTIFICATION_EMAIL_ON_NEW_USER is disabled")
+		})()
+		MailNewUser(ctx, users[1])
+	})
+
+	cleanUpUsers(ctx, users)
+}