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package syscallcompat
import (
"os"
"path/filepath"
"testing"
"golang.org/x/sys/unix"
)
func TestRenameExchange(t *testing.T) {
// Create a temporary directory for testing
tmpDir, err := os.MkdirTemp("", "renameat2_test")
if err != nil {
t.Fatalf("Failed to create temp dir: %v", err)
}
defer os.RemoveAll(tmpDir)
// Test basic exchange functionality
file1 := filepath.Join(tmpDir, "file1.txt")
file2 := filepath.Join(tmpDir, "file2.txt")
content1 := []byte("content of file 1")
content2 := []byte("content of file 2")
if err := os.WriteFile(file1, content1, 0644); err != nil {
t.Fatalf("Failed to create file1: %v", err)
}
if err := os.WriteFile(file2, content2, 0644); err != nil {
t.Fatalf("Failed to create file2: %v", err)
}
// Test RENAME_EXCHANGE - this is the core functionality for issue #914
err = Renameat2(unix.AT_FDCWD, file1, unix.AT_FDCWD, file2, RENAME_EXCHANGE)
if err != nil {
t.Fatalf("RENAME_EXCHANGE failed: %v", err)
}
// Verify that the files have been swapped
newContent1, err := os.ReadFile(file1)
if err != nil {
t.Fatalf("Failed to read file1 after exchange: %v", err)
}
newContent2, err := os.ReadFile(file2)
if err != nil {
t.Fatalf("Failed to read file2 after exchange: %v", err)
}
if string(newContent1) != string(content2) {
t.Errorf("file1 content after exchange. Expected: %s, Got: %s", content2, newContent1)
}
if string(newContent2) != string(content1) {
t.Errorf("file2 content after exchange. Expected: %s, Got: %s", content1, newContent2)
}
}
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