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[CHORE] Move test related function to own package
- Go's deadcode eliminator is quite simple, if you put a public function in a package `aa/bb` that is used only by tests, it would still be built if package `aa/bb` was imported. This means that if such functions use libraries relevant only to tests that those libraries would still be be built and increase the binary size of a Go binary. - This is also the case with Forgejo, `models/migrations/base/tests.go` contained functions exclusively used by tests which (skipping some steps here) imports https://github.com/ClickHouse/clickhouse-go, which is 2MiB. The `code.gitea.io/gitea/models/migrations/base` package is imported by `cmd/doctor` and thus the code of the clickhouse library is also built and included in the Forgejo binary, although entirely unused and not reachable. - This patch moves the test-related functions to their own package, so Go's deadcode eliminator knows not to build the test-related functions and thus reduces the size of the Forgejo binary. - It is not possible to move this to a `_test.go` file because Go does not allow importing functions from such files, so any test helper function must be in a non-test package and file. - Reduction of size (built with `TAGS="sqlite sqlite_unlock_notify" make build`): - Before: 95912040 bytes (92M) - After: 92306888 bytes (89M)
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Gusted
parent
6e83c39f13
commit
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38 changed files with 170 additions and 276 deletions
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// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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//nolint:forbidigo
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package base
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import (
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"context"
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"fmt"
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"os"
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"path"
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"path/filepath"
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"runtime"
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"testing"
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"code.gitea.io/gitea/models/unittest"
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"code.gitea.io/gitea/modules/base"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/testlogger"
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"github.com/stretchr/testify/assert"
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"xorm.io/xorm"
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)
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// FIXME: this file shouldn't be in a normal package, it should only be compiled for tests
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// PrepareTestEnv prepares the test environment and reset the database. The skip parameter should usually be 0.
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// Provide models to be sync'd with the database - in particular any models you expect fixtures to be loaded from.
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//
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// fixtures in `models/migrations/fixtures/<TestName>` will be loaded automatically
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func PrepareTestEnv(t *testing.T, skip int, syncModels ...any) (*xorm.Engine, func()) {
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t.Helper()
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ourSkip := 2
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ourSkip += skip
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deferFn := testlogger.PrintCurrentTest(t, ourSkip)
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assert.NoError(t, os.RemoveAll(setting.RepoRootPath))
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assert.NoError(t, unittest.CopyDir(path.Join(filepath.Dir(setting.AppPath), "tests/gitea-repositories-meta"), setting.RepoRootPath))
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ownerDirs, err := os.ReadDir(setting.RepoRootPath)
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if err != nil {
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assert.NoError(t, err, "unable to read the new repo root: %v\n", err)
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}
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for _, ownerDir := range ownerDirs {
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if !ownerDir.Type().IsDir() {
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continue
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}
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repoDirs, err := os.ReadDir(filepath.Join(setting.RepoRootPath, ownerDir.Name()))
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if err != nil {
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assert.NoError(t, err, "unable to read the new repo root: %v\n", err)
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}
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for _, repoDir := range repoDirs {
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_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "pack"), 0o755)
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_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "objects", "info"), 0o755)
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_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "heads"), 0o755)
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_ = os.MkdirAll(filepath.Join(setting.RepoRootPath, ownerDir.Name(), repoDir.Name(), "refs", "tag"), 0o755)
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}
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}
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if err := deleteDB(); err != nil {
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t.Errorf("unable to reset database: %v", err)
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return nil, deferFn
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}
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x, err := newXORMEngine()
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assert.NoError(t, err)
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if x != nil {
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oldDefer := deferFn
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deferFn = func() {
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oldDefer()
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if err := x.Close(); err != nil {
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t.Errorf("error during close: %v", err)
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}
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if err := deleteDB(); err != nil {
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t.Errorf("unable to reset database: %v", err)
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}
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}
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}
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if err != nil {
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return x, deferFn
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}
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if len(syncModels) > 0 {
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if err := x.Sync(syncModels...); err != nil {
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t.Errorf("error during sync: %v", err)
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return x, deferFn
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}
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}
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fixturesDir := filepath.Join(filepath.Dir(setting.AppPath), "models", "migrations", "fixtures", t.Name())
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if _, err := os.Stat(fixturesDir); err == nil {
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t.Logf("initializing fixtures from: %s", fixturesDir)
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if err := unittest.InitFixtures(
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unittest.FixturesOptions{
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Dir: fixturesDir,
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}, x); err != nil {
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t.Errorf("error whilst initializing fixtures from %s: %v", fixturesDir, err)
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return x, deferFn
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}
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if err := unittest.LoadFixtures(x); err != nil {
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t.Errorf("error whilst loading fixtures from %s: %v", fixturesDir, err)
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return x, deferFn
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}
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} else if !os.IsNotExist(err) {
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t.Errorf("unexpected error whilst checking for existence of fixtures: %v", err)
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} else {
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t.Logf("no fixtures found in: %s", fixturesDir)
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}
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return x, deferFn
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}
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func MainTest(m *testing.M) {
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log.RegisterEventWriter("test", testlogger.NewTestLoggerWriter)
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giteaRoot := base.SetupGiteaRoot()
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if giteaRoot == "" {
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fmt.Println("Environment variable $GITEA_ROOT not set")
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os.Exit(1)
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}
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giteaBinary := "gitea"
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if runtime.GOOS == "windows" {
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giteaBinary += ".exe"
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}
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setting.AppPath = path.Join(giteaRoot, giteaBinary)
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if _, err := os.Stat(setting.AppPath); err != nil {
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fmt.Printf("Could not find gitea binary at %s\n", setting.AppPath)
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os.Exit(1)
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}
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giteaConf := os.Getenv("GITEA_CONF")
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if giteaConf == "" {
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giteaConf = path.Join(filepath.Dir(setting.AppPath), "tests/sqlite.ini")
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fmt.Printf("Environment variable $GITEA_CONF not set - defaulting to %s\n", giteaConf)
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}
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if !path.IsAbs(giteaConf) {
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setting.CustomConf = path.Join(giteaRoot, giteaConf)
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} else {
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setting.CustomConf = giteaConf
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}
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tmpDataPath, err := os.MkdirTemp("", "data")
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if err != nil {
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fmt.Printf("Unable to create temporary data path %v\n", err)
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os.Exit(1)
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}
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setting.CustomPath = filepath.Join(setting.AppWorkPath, "custom")
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setting.AppDataPath = tmpDataPath
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unittest.InitSettings()
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if err = git.InitFull(context.Background()); err != nil {
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fmt.Printf("Unable to InitFull: %v\n", err)
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os.Exit(1)
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}
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setting.LoadDBSetting()
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setting.InitLoggersForTest()
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exitStatus := m.Run()
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if err := testlogger.WriterCloser.Reset(); err != nil && exitStatus == 0 {
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fmt.Printf("testlogger.WriterCloser.Reset: error ignored: %v\n", err)
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}
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if err := removeAllWithRetry(setting.RepoRootPath); err != nil {
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fmt.Fprintf(os.Stderr, "os.RemoveAll: %v\n", err)
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}
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if err := removeAllWithRetry(tmpDataPath); err != nil {
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fmt.Fprintf(os.Stderr, "os.RemoveAll: %v\n", err)
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}
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os.Exit(exitStatus)
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}
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