make writing main test easier (#27270)

This PR removed `unittest.MainTest` the second parameter
`TestOptions.GiteaRoot`. Now it detects the root directory by current
working directory.

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

19 files changed, 47 insertions, 86 deletions

diff --git a/models/activities/main_test.go b/models/activities/main_test.go
index 6be54db658..43afb84ef1 100644
--- a/models/activities/main_test.go
+++ b/models/activities/main_test.go
@@ -4,7 +4,6 @@
 package activities_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -14,7 +13,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/asymkey/main_test.go b/models/asymkey/main_test.go
index 701722be12..be71f848d9 100644
--- a/models/asymkey/main_test.go
+++ b/models/asymkey/main_test.go
@@ -4,7 +4,6 @@
 package asymkey
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -12,7 +11,6 @@ import (
 
 func TestMain(m *testing.M) {
 	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
 		FixtureFiles: []string{
 			"gpg_key.yml",
 			"public_key.yml",
diff --git a/models/auth/main_test.go b/models/auth/main_test.go
index f8cbf3bd54..d772ea6b1c 100644
--- a/models/auth/main_test.go
+++ b/models/auth/main_test.go
@@ -4,7 +4,6 @@
 package auth_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -17,7 +16,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/avatars/main_test.go b/models/avatars/main_test.go
index 6507632717..c721a7dc2a 100644
--- a/models/avatars/main_test.go
+++ b/models/avatars/main_test.go
@@ -4,7 +4,6 @@
 package avatars_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -15,7 +14,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/db/main_test.go b/models/db/main_test.go
index ce48502918..7d80b400fe 100644
--- a/models/db/main_test.go
+++ b/models/db/main_test.go
@@ -4,7 +4,6 @@
 package db_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -14,7 +13,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/db/paginator/main_test.go b/models/db/paginator/main_test.go
index b0557bc5a4..47993aed6b 100644
--- a/models/db/paginator/main_test.go
+++ b/models/db/paginator/main_test.go
@@ -4,14 +4,11 @@
 package paginator
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", "..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/dbfs/main_test.go b/models/dbfs/main_test.go
index 62db3592be..537ba0935d 100644
--- a/models/dbfs/main_test.go
+++ b/models/dbfs/main_test.go
@@ -4,14 +4,11 @@
 package dbfs
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/git/main_test.go b/models/git/main_test.go
index a8658d70c4..aab1fa9a26 100644
--- a/models/git/main_test.go
+++ b/models/git/main_test.go
@@ -4,7 +4,6 @@
 package git_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -15,7 +14,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/issues/main_test.go b/models/issues/main_test.go
index 190df027f4..ba83ca5552 100644
--- a/models/issues/main_test.go
+++ b/models/issues/main_test.go
@@ -4,7 +4,6 @@
 package issues_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	issues_model "code.gitea.io/gitea/models/issues"
@@ -30,7 +29,5 @@ func TestFixturesAreConsistent(t *testing.T) {
 }
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/main_test.go b/models/main_test.go
index c09b661d2c..600dcc889b 100644
--- a/models/main_test.go
+++ b/models/main_test.go
@@ -29,7 +29,5 @@ func TestFixturesAreConsistent(t *testing.T) {
 }
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: "..",
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/organization/main_test.go b/models/organization/main_test.go
index bc5bde2565..c35898a465 100644
--- a/models/organization/main_test.go
+++ b/models/organization/main_test.go
@@ -4,7 +4,6 @@
 package organization_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -18,7 +17,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/packages/package_test.go b/models/packages/package_test.go
index 525a9f08d6..7f03151e77 100644
--- a/models/packages/package_test.go
+++ b/models/packages/package_test.go
@@ -4,7 +4,6 @@
 package packages_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/db"
@@ -20,9 +19,7 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
 
 func TestHasOwnerPackages(t *testing.T) {
diff --git a/models/perm/access/main_test.go b/models/perm/access/main_test.go
index 8102cae496..0a350dc41e 100644
--- a/models/perm/access/main_test.go
+++ b/models/perm/access/main_test.go
@@ -4,7 +4,6 @@
 package access_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -17,7 +16,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", "..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/project/main_test.go b/models/project/main_test.go
index 816cbeb94a..f4b2d6feda 100644
--- a/models/project/main_test.go
+++ b/models/project/main_test.go
@@ -4,7 +4,6 @@
 package project
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -14,7 +13,6 @@ import (
 
 func TestMain(m *testing.M) {
 	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
 		FixtureFiles: []string{
 			"project.yml",
 			"project_board.yml",
diff --git a/models/repo/main_test.go b/models/repo/main_test.go
index ff97c7ac9e..b49855f2c8 100644
--- a/models/repo/main_test.go
+++ b/models/repo/main_test.go
@@ -4,7 +4,6 @@
 package repo_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -18,7 +17,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/system/main_test.go b/models/system/main_test.go
index e074abc155..6bc27a7cff 100644
--- a/models/system/main_test.go
+++ b/models/system/main_test.go
@@ -4,7 +4,6 @@
 package system_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -16,7 +15,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/unittest/testdb.go b/models/unittest/testdb.go
index 1ff0fdc25b..6db99cd393 100644
--- a/models/unittest/testdb.go
+++ b/models/unittest/testdb.go
@@ -62,35 +62,46 @@ func InitSettings(extraConfigs ...string) {
 
 // TestOptions represents test options
 type TestOptions struct {
-	GiteaRootPath string
-	FixtureFiles  []string
-	SetUp         func() error // SetUp will be executed before all tests in this package
-	TearDown      func() error // TearDown will be executed after all tests in this package
+	FixtureFiles []string
+	SetUp        func() error // SetUp will be executed before all tests in this package
+	TearDown     func() error // TearDown will be executed after all tests in this package
 }
 
 // MainTest a reusable TestMain(..) function for unit tests that need to use a
 // test database. Creates the test database, and sets necessary settings.
-func MainTest(m *testing.M, testOpts *TestOptions) {
-	setting.CustomPath = filepath.Join(testOpts.GiteaRootPath, "custom")
-	InitSettings()
-
-	var err error
+func MainTest(m *testing.M, testOpts ...*TestOptions) {
+	searchDir, _ := os.Getwd()
+	for searchDir != "" {
+		if _, err := os.Stat(filepath.Join(searchDir, "go.mod")); err == nil {
+			break // The "go.mod" should be the one for Gitea repository
+		}
+		if dir := filepath.Dir(searchDir); dir == searchDir {
+			searchDir = "" // reaches the root of filesystem
+		} else {
+			searchDir = dir
+		}
+	}
+	if searchDir == "" {
+		panic("The tests should run in a Gitea repository, there should be a 'go.mod' in the root")
+	}
 
-	giteaRoot = testOpts.GiteaRootPath
-	fixturesDir = filepath.Join(testOpts.GiteaRootPath, "models", "fixtures")
+	giteaRoot = searchDir
+	setting.CustomPath = filepath.Join(giteaRoot, "custom")
+	InitSettings()
 
+	fixturesDir = filepath.Join(giteaRoot, "models", "fixtures")
 	var opts FixturesOptions
-	if len(testOpts.FixtureFiles) == 0 {
+	if len(testOpts) == 0 || len(testOpts[0].FixtureFiles) == 0 {
 		opts.Dir = fixturesDir
 	} else {
-		for _, f := range testOpts.FixtureFiles {
+		for _, f := range testOpts[0].FixtureFiles {
 			if len(f) != 0 {
 				opts.Files = append(opts.Files, filepath.Join(fixturesDir, f))
 			}
 		}
 	}
 
-	if err = CreateTestEngine(opts); err != nil {
+	if err := CreateTestEngine(opts); err != nil {
 		fatalTestError("Error creating test engine: %v\n", err)
 	}
 
@@ -112,8 +123,8 @@ func MainTest(m *testing.M, testOpts *TestOptions) {
 		fatalTestError("TempDir: %v\n", err)
 	}
 	setting.AppDataPath = appDataPath
-	setting.AppWorkPath = testOpts.GiteaRootPath
-	setting.StaticRootPath = testOpts.GiteaRootPath
+	setting.AppWorkPath = giteaRoot
+	setting.StaticRootPath = giteaRoot
 	setting.GravatarSource = "https://secure.gravatar.com/avatar/"
 
 	setting.Attachment.Storage.Path = filepath.Join(setting.AppDataPath, "attachments")
@@ -144,7 +155,7 @@ func MainTest(m *testing.M, testOpts *TestOptions) {
 	if err = util.RemoveAll(repoRootPath); err != nil {
 		fatalTestError("util.RemoveAll: %v\n", err)
 	}
-	if err = CopyDir(filepath.Join(testOpts.GiteaRootPath, "tests", "gitea-repositories-meta"), setting.RepoRootPath); err != nil {
+	if err = CopyDir(filepath.Join(giteaRoot, "tests", "gitea-repositories-meta"), setting.RepoRootPath); err != nil {
 		fatalTestError("util.CopyDir: %v\n", err)
 	}
 
@@ -171,16 +182,16 @@ func MainTest(m *testing.M, testOpts *TestOptions) {
 		}
 	}
 
-	if testOpts.SetUp != nil {
-		if err := testOpts.SetUp(); err != nil {
+	if len(testOpts) > 0 && testOpts[0].SetUp != nil {
+		if err := testOpts[0].SetUp(); err != nil {
 			fatalTestError("set up failed: %v\n", err)
 		}
 	}
 
 	exitStatus := m.Run()
 
-	if testOpts.TearDown != nil {
-		if err := testOpts.TearDown(); err != nil {
+	if len(testOpts) > 0 && testOpts[0].TearDown != nil {
+		if err := testOpts[0].TearDown(); err != nil {
 			fatalTestError("tear down failed: %v\n", err)
 		}
 	}
diff --git a/models/user/main_test.go b/models/user/main_test.go
index 8833cc7386..a626d323a7 100644
--- a/models/user/main_test.go
+++ b/models/user/main_test.go
@@ -4,7 +4,6 @@
 package user_test
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -16,7 +15,5 @@ import (
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
-	})
+	unittest.MainTest(m)
 }
diff --git a/models/webhook/main_test.go b/models/webhook/main_test.go
index 8df569a3cc..f19465d505 100644
--- a/models/webhook/main_test.go
+++ b/models/webhook/main_test.go
@@ -4,7 +4,6 @@
 package webhook
 
 import (
-	"path/filepath"
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
@@ -12,7 +11,6 @@ import (
 
 func TestMain(m *testing.M) {
 	unittest.MainTest(m, &unittest.TestOptions{
-		GiteaRootPath: filepath.Join("..", ".."),
 		FixtureFiles: []string{
 			"webhook.yml",
 			"hook_task.yml",