Kd/ci playwright go test (#20123)

* Add initial playwright config

* Simplify Makefile

* Simplify Makefile

* Use correct config files

* Update playwright settings

* Fix package-lock file

* Don't use test logger for e2e tests

* fix frontend lint

* Allow passing TEST_LOGGER variable

* Init postgres database

* use standard gitea env variables

* Update playwright

* update drone

* Move empty env var to commands

* Cleanup

* Move integrations to subfolder

* tests integrations to tests integraton

* Run e2e tests with go test

* Fix linting

* install CI deps

* Add files to ESlint

* Fix drone typo

* Don't log to console in CI

* Use go test http server

* Add build step before tests

* Move shared init function to common package

* fix drone

* Clean up tests

* Fix linting

* Better mocking for page + version string

* Cleanup test generation

* Remove dependency on gitea binary

* Fix linting

* add initial support for running specific tests

* Add ACCEPT_VISUAL variable

* don't require git-lfs

* Add initial documentation

* Review feedback

* Add logged in session test

* Attempt fixing drone race

* Cleanup and bump version

* Bump deps

* Review feedback

* simplify installation

* Fix ci

* Update install docs

tests/e2e/utils_e2e_test.go

@@ -0,0 +1,57 @@
+// Copyright 2019 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 e2e
+
+import (
+	"context"
+	"net"
+	"net/http"
+	"net/url"
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/tests"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func onGiteaRunTB(t testing.TB, callback func(testing.TB, *url.URL), prepare ...bool) {
+	if len(prepare) == 0 || prepare[0] {
+		defer tests.PrepareTestEnv(t, 1)()
+	}
+	s := http.Server{
+		Handler: c,
+	}
+
+	u, err := url.Parse(setting.AppURL)
+	assert.NoError(t, err)
+	listener, err := net.Listen("tcp", u.Host)
+	i := 0
+	for err != nil && i <= 10 {
+		time.Sleep(100 * time.Millisecond)
+		listener, err = net.Listen("tcp", u.Host)
+		i++
+	}
+	assert.NoError(t, err)
+	u.Host = listener.Addr().String()
+
+	defer func() {
+		ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
+		s.Shutdown(ctx)
+		cancel()
+	}()
+
+	go s.Serve(listener)
+	// Started by config go ssh.Listen(setting.SSH.ListenHost, setting.SSH.ListenPort, setting.SSH.ServerCiphers, setting.SSH.ServerKeyExchanges, setting.SSH.ServerMACs)
+
+	callback(t, u)
+}
+
+func onGiteaRun(t *testing.T, callback func(*testing.T, *url.URL), prepare ...bool) {
+	onGiteaRunTB(t, func(t testing.TB, u *url.URL) {
+		callback(t.(*testing.T), u)
+	}, prepare...)
+}