User account deletion (#937)

Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/937
Co-authored-by: konrad <konrad@kola-entertainments.de>
Co-committed-by: konrad <konrad@kola-entertainments.de>

pkg/models/user_delete_test.go

@@ -0,0 +1,47 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-2021 Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public Licensee as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public Licensee for more details.
+//
+// You should have received a copy of the GNU Affero General Public Licensee
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package models
+
+import (
+	"testing"
+
+	"code.vikunja.io/api/pkg/db"
+	"code.vikunja.io/api/pkg/notifications"
+	"code.vikunja.io/api/pkg/user"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDeleteUser(t *testing.T) {
+	db.LoadAndAssertFixtures(t)
+	s := db.NewSession()
+	defer s.Close()
+	notifications.Fake()
+
+	u := &user.User{ID: 6}
+	err := DeleteUser(s, u)
+
+	assert.NoError(t, err)
+	db.AssertMissing(t, "users", map[string]interface{}{"id": u.ID})
+	db.AssertMissing(t, "lists", map[string]interface{}{"id": 24}) // only user6 had access to this list
+	db.AssertExists(t, "lists", map[string]interface{}{"id": 6}, false)
+	db.AssertExists(t, "lists", map[string]interface{}{"id": 7}, false)
+	db.AssertExists(t, "lists", map[string]interface{}{"id": 8}, false)
+	db.AssertExists(t, "lists", map[string]interface{}{"id": 9}, false)
+	db.AssertExists(t, "lists", map[string]interface{}{"id": 10}, false)
+	db.AssertExists(t, "lists", map[string]interface{}{"id": 11}, false)
+}