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package main
import (
"io/fs"
"os"
"path/filepath"
"strings"
"syscall"
"testing"
)
func TestCopyFile_Normal(t *testing.T) {
src := filepath.Join(t.TempDir(), "src.txt")
dst := filepath.Join(t.TempDir(), "dst.txt")
os.WriteFile(src, []byte("hello"), 0644)
if err := copyFile(src, dst, 0644); err != nil {
t.Fatal(err)
}
data, _ := os.ReadFile(dst)
if string(data) != "hello" {
t.Errorf("content = %q, want %q", string(data), "hello")
}
}
func TestCopyFile_SrcNotExist(t *testing.T) {
dst := filepath.Join(t.TempDir(), "dst.txt")
err := copyFile("/nonexistent/file", dst, 0644)
if err == nil {
t.Fatal("expected error for nonexistent source")
}
if !os.IsNotExist(err) {
t.Errorf("expected ErrNotExist, got: %v", err)
}
}
func TestCopyFile_DstPermDenied(t *testing.T) {
if os.Getuid() == 0 {
t.Skip("running as root, permission test not applicable")
}
src := filepath.Join(t.TempDir(), "src.txt")
os.WriteFile(src, []byte("hello"), 0644)
dst := "/proc/nonexistent/file"
err := copyFile(src, dst, 0644)
if err == nil {
t.Fatal("expected error for invalid dst")
}
}
func TestRetry_TransientError(t *testing.T) {
calls := 0
err := retry("test", func() error {
calls++
if calls < 3 {
return &fs.PathError{Op: "open", Path: "/tmp/test", Err: fs.ErrNotExist}
}
return nil
})
if err != nil {
t.Errorf("expected success after retries, got: %v", err)
}
if calls != 3 {
t.Errorf("calls = %d, want 3", calls)
}
}
func TestRetry_PermanentError(t *testing.T) {
calls := 0
err := retry("test", func() error {
calls++
return &fs.PathError{Op: "write", Path: "/tmp/test", Err: syscall.ENOSPC}
})
if err == nil {
t.Fatal("expected error")
}
if calls != 1 {
t.Errorf("calls = %d, want 1 (no retries for ENOSPC)", calls)
}
}
func TestIsRetryable(t *testing.T) {
tests := []struct {
err error
expected bool
}{
{fs.ErrNotExist, true},
{&fs.PathError{Op: "open", Path: "/tmp", Err: fs.ErrNotExist}, true},
{&fs.PathError{Op: "write", Path: "/tmp", Err: syscall.ENOSPC}, false},
{syscall.ENOSPC, false},
{syscall.EACCES, false},
}
for _, tt := range tests {
if got := isRetryable(tt.err); got != tt.expected {
t.Errorf("isRetryable(%v) = %v, want %v", tt.err, got, tt.expected)
}
}
}
func TestLogError_DiskFull(t *testing.T) {
logSyncError("copy", "test.txt", syscall.ENOSPC)
}
func TestLogError_PermissionDenied(t *testing.T) {
logSyncError("write", "test.txt", syscall.EACCES)
}
func TestLogError_NotExist(t *testing.T) {
logSyncError("stat", "test.txt", fs.ErrNotExist)
}
func TestLogError_Nil(t *testing.T) {
logSyncError("test", "file.txt", nil)
}
func TestSyncError(t *testing.T) {
err := &SyncError{
Path: "test.txt",
Op: "copy",
Err: syscall.ENOSPC,
}
if !strings.Contains(err.Error(), "copy") {
t.Errorf("error should contain op, got: %s", err.Error())
}
if !strings.Contains(err.Error(), "test.txt") {
t.Errorf("error should contain path, got: %s", err.Error())
}
if err.Unwrap() != syscall.ENOSPC {
t.Errorf("unwrap should return underlying error")
}
}
func TestCopyFileWithRetry_Success(t *testing.T) {
src := filepath.Join(t.TempDir(), "src.txt")
dst := filepath.Join(t.TempDir(), "dst.txt")
os.WriteFile(src, []byte("content"), 0644)
if err := copyFileWithRetry(src, dst, 0644); err != nil {
t.Fatal(err)
}
data, _ := os.ReadFile(dst)
if string(data) != "content" {
t.Errorf("content = %q, want %q", string(data), "content")
}
}
|
