feat: add weed mini TestMain support to all S3 integration tests

- Added s3_test_main.go with auto-managed weed mini server to:
  - acl, basic, copying, cors, delete, etag, filer_group, iam
  - remote_cache, retention, sse, tagging (12 additional test suites)
- All tests now support automatic server lifecycle management via TestMain
- Backward compatible with USE_EXTERNAL_SERVER=true for CI pipelines
- No changes required to existing test files
- All 13 S3 test suites now use consistent weed mini infrastructure

This enables:
- Tests to run independently with self-managed server
- Simplified CI/CD pipelines
- Reduced infrastructure complexity
- Consistent test infrastructure across all S3 tests

test/s3/acl/s3_test_main.go

@@ -0,0 +1,42 @@
+package acl
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/basic/s3_test_main.go

@@ -0,0 +1,42 @@
+package basic
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/copying/s3_test_main.go

@@ -0,0 +1,42 @@
+package copying_test
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/cors/s3_test_main.go

@@ -0,0 +1,42 @@
+package cors
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/delete/s3_test_main.go

@@ -0,0 +1,42 @@
+package delete
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/etag/s3_test_main.go

@@ -0,0 +1,42 @@
+package s3api
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/filer_group/s3_test_main.go

@@ -0,0 +1,42 @@
+package filer_group
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/iam/s3_test_main.go

@@ -0,0 +1,42 @@
+package iam
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/remote_cache/s3_test_main.go

@@ -0,0 +1,42 @@
+package remote_cache
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/retention/s3_test_main.go

@@ -0,0 +1,42 @@
+package retention
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/sse/s3_test_main.go

@@ -0,0 +1,42 @@
+package sse_test
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}

test/s3/tagging/s3_test_main.go

@@ -0,0 +1,42 @@
+package tagging
+
+import (
+"fmt"
+"os"
+"testing"
+
+"github.com/seaweedfs/seaweedfs/test/s3/testutil"
+)
+
+var testServer *testutil.TestServer
+
+// TestMain sets up and tears down the test environment using weed mini
+func TestMain(m *testing.M) {
+	var exitCode int
+
+	fmt.Println("TestMain: Starting test setup...")
+
+	// Check if we should manage the server or use an existing one
+	if os.Getenv("USE_EXTERNAL_SERVER") != "true" {
+		// Start server using weed mini
+		fmt.Println("TestMain: Starting weed mini server...")
+		config := testutil.DefaultServerConfig(nil)
+		config.AccessKey = "some_access_key1"
+		config.SecretKey = "some_secret_key1"
+
+		var err error
+		testServer, err = testutil.StartServer(config)
+		if err != nil {
+			fmt.Printf("TestMain: ERROR - Failed to start test server: %v\n", err)
+			os.Exit(1)
+		}
+		fmt.Println("TestMain: Server started successfully")
+		defer testServer.Stop()
+	}
+
+	// Run tests
+	fmt.Println("TestMain: Running tests...")
+	exitCode = m.Run()
+	fmt.Printf("TestMain: Tests completed with exit code %d\n", exitCode)
+	os.Exit(exitCode)
+}