Move fixture generation to contrib and add test

contrib/fixtures/fixture_generation.go

@@ -0,0 +1,76 @@
+// Copyright 2020 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 main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"code.gitea.io/gitea/models"
+)
+
+// To generate derivative fixtures, execute the following from Gitea's repository base dir:
+// go run -tags 'sqlite sqlite_unlock_notify' contrib/fixtures/fixture_generation.go [fixture...]
+
+var (
+	generators = []struct {
+		gen  func() (string, error)
+		name string
+	}{
+		{
+			models.GetYamlFixturesAccess, "access",
+		},
+	}
+	fixturesDir string
+)
+
+func main() {
+	pathToGiteaRoot := "."
+	fixturesDir = filepath.Join(pathToGiteaRoot, "models", "fixtures")
+	if err := models.CreateTestEngine(fixturesDir); err != nil {
+		fmt.Printf("CreateTestEngine: %+v", err)
+		os.Exit(1)
+	}
+	if err := models.PrepareTestDatabase(); err != nil {
+		fmt.Printf("PrepareTestDatabase: %+v\n", err)
+		os.Exit(1)
+	}
+	if len(os.Args) == 0 {
+		for _, r := range os.Args {
+			if err := generate(r); err != nil {
+				fmt.Printf("generate '%s': %+v\n", r, err)
+				os.Exit(1)
+			}
+		}
+	} else {
+		for _, g := range generators {
+			if err := generate(g.name); err != nil {
+				fmt.Printf("generate '%s': %+v\n", g.name, err)
+				os.Exit(1)
+			}
+		}
+	}
+}
+
+func generate(name string) error {
+	for _, g := range generators {
+		if g.name == name {
+			data, err := g.gen()
+			if err != nil {
+				return err
+			}
+			path := filepath.Join(fixturesDir, name+".yml")
+			if err := ioutil.WriteFile(path, []byte(data), 0644); err != nil {
+				return fmt.Errorf("%s: %+v", path, err)
+			}
+			fmt.Printf("%s created.\n", path)
+			return nil
+		}
+	}
+
+	return fmt.Errorf("generator not found")
+}

models/fixture_generation.go

@@ -0,0 +1,45 @@
+// Copyright 2020 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 models
+
+import (
+	"fmt"
+	"strings"
+)
+
+// GetYamlFixturesAccess returns a string containing the contents
+// for the access table, as recalculated using repo.RecalculateAccesses()
+func GetYamlFixturesAccess() (string, error) {
+
+	repos := make([]*Repository, 0, 50)
+	if err := x.Find(&repos); err != nil {
+		return "", err
+	}
+
+	for _, repo := range repos {
+		repo.MustOwner()
+		if err := repo.RecalculateAccesses(); err != nil {
+			return "", err
+		}
+	}
+
+	var b strings.Builder
+
+	accesses := make([]*Access, 0, 200)
+	if err := x.OrderBy("user_id, repo_id").Find(&accesses); err != nil {
+		return "", err
+	}
+
+	for i, a := range accesses {
+		fmt.Fprintf(&b, "-\n")
+		fmt.Fprintf(&b, "  id: %d\n", i+1)
+		fmt.Fprintf(&b, "  user_id: %d\n", a.UserID)
+		fmt.Fprintf(&b, "  repo_id: %d\n", a.RepoID)
+		fmt.Fprintf(&b, "  mode: %d\n", a.Mode)
+		fmt.Fprintf(&b, "\n")
+	}
+
+	return b.String(), nil
+}

models/fixture_test.go

@@ -0,0 +1,34 @@
+// Copyright 2020 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 models
+
+import (
+	"io/ioutil"
+	"path/filepath"
+	"testing"
+
+	"code.gitea.io/gitea/modules/util"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestFixtureGeneration(t *testing.T) {
+	assert.NoError(t, PrepareTestDatabase())
+
+	test := func(gen func() (string, error), name string) {
+		expected, err := gen()
+		if !assert.NoError(t, err) {
+			return
+		}
+		bytes, err := ioutil.ReadFile(filepath.Join(fixturesDir, name+".yml"))
+		if !assert.NoError(t, err) {
+			return
+		}
+		data := string(util.NormalizeEOL(bytes))
+		assert.True(t, data == expected, "Differences detected for %s.yml", name)
+	}
+
+	test(GetYamlFixturesAccess, "access")
+}

models/unit_tests.go

@@ -28,7 +28,10 @@ import (
 const NonexistentID = int64(math.MaxInt64)
 
 // giteaRoot a path to the gitea root
-var giteaRoot string
+var (
+	giteaRoot   string
+	fixturesDir string
+)
 
 func fatalTestError(fmtStr string, args ...interface{}) {
 	fmt.Fprintf(os.Stderr, fmtStr, args...)
@@ -40,8 +43,8 @@ func fatalTestError(fmtStr string, args ...interface{}) {
 func MainTest(m *testing.M, pathToGiteaRoot string) {
 	var err error
 	giteaRoot = pathToGiteaRoot
-	fixturesDir := filepath.Join(pathToGiteaRoot, "models", "fixtures")
-	if err = createTestEngine(fixturesDir); err != nil {
+	fixturesDir = filepath.Join(pathToGiteaRoot, "models", "fixtures")
+	if err = CreateTestEngine(fixturesDir); err != nil {
 		fatalTestError("Error creating test engine: %v\n", err)
 	}
 
@@ -82,7 +85,8 @@ func MainTest(m *testing.M, pathToGiteaRoot string) {
 	os.Exit(exitStatus)
 }
 
-func createTestEngine(fixturesDir string) error {
+// CreateTestEngine creates a memory database and loads the fixture data from fixturesDir
+func CreateTestEngine(fixturesDir string) error {
 	var err error
 	x, err = xorm.NewEngine("sqlite3", "file::memory:?cache=shared")
 	if err != nil {