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package link
import (
"os"
"path/filepath"
"testing"
"codeberg.org/snonux/gonf/internal/resource"
. "codeberg.org/snonux/gonf/api/options"
)
func TestPresentSymlinkCreateAndIdempotent(t *testing.T) {
resource.ResetRepository()
dir := t.TempDir()
target := filepath.Join(dir, "target")
if err := os.WriteFile(target, []byte("hi"), 0o644); err != nil {
t.Fatal(err)
}
path := filepath.Join(dir, "link")
Present(path, WithSymlink(target))
if err := resource.Apply(); err != nil {
t.Fatalf("Apply failed: %v", err)
}
got, err := os.Readlink(path)
if err != nil {
t.Fatal(err)
}
if got != target {
t.Errorf("expected link to point to %s, got %s", target, got)
}
// Idempotency
if err := resource.Apply(); err != nil {
t.Fatalf("second Apply failed: %v", err)
}
}
func TestPresentSymlinkRepoints(t *testing.T) {
resource.ResetRepository()
dir := t.TempDir()
path := filepath.Join(dir, "link")
t1 := filepath.Join(dir, "target1")
t2 := filepath.Join(dir, "target2")
if err := os.WriteFile(t1, []byte("1"), 0o644); err != nil {
t.Fatal(err)
}
if err := os.WriteFile(t2, []byte("2"), 0o644); err != nil {
t.Fatal(err)
}
Present(path, WithSymlink(t1))
if err := resource.Apply(); err != nil {
t.Fatalf("Apply 1 failed: %v", err)
}
// Change target
resource.ResetRepository()
Present(path, WithSymlink(t2))
if err := resource.Apply(); err != nil {
t.Fatalf("Apply 2 failed: %v", err)
}
got, err := os.Readlink(path)
if err != nil {
t.Fatal(err)
}
if got != t2 {
t.Errorf("expected link to repoint to %s, got %s", t2, got)
}
}
func TestPresentSymlinkMovesRealFileAside(t *testing.T) {
resource.ResetRepository()
dir := t.TempDir()
path := filepath.Join(dir, "link")
if err := os.WriteFile(path, []byte("real file"), 0o644); err != nil {
t.Fatal(err)
}
target := filepath.Join(dir, "target")
if err := os.WriteFile(target, []byte("target content"), 0o644); err != nil {
t.Fatal(err)
}
Present(path, WithSymlink(target))
if err := resource.Apply(); err != nil {
t.Fatalf("Apply failed: %v", err)
}
if _, err := os.Stat(path + ".old"); os.IsNotExist(err) {
t.Errorf("expected real file to be moved to %s.old", path)
}
got, err := os.Readlink(path)
if err != nil {
t.Fatal(err)
}
if got != target {
t.Errorf("expected link to point to %s, got %s", target, got)
}
}
func TestPresentHardlinkCreateAndIdempotent(t *testing.T) {
resource.ResetRepository()
dir := t.TempDir()
target := filepath.Join(dir, "target")
if err := os.WriteFile(target, []byte("hi"), 0o644); err != nil {
t.Fatal(err)
}
path := filepath.Join(dir, "link")
Present(path, WithHardlink(target))
if err := resource.Apply(); err != nil {
t.Fatalf("Apply failed: %v", err)
}
infoLink, err := os.Stat(path)
if err != nil {
t.Fatal(err)
}
if infoLink.Mode()&os.ModeSymlink != 0 {
t.Error("expected hardlink, but got symlink")
}
// Verify they share the same inode (via a helper or by checking if we can see it's not a symlink and is a file)
// Since sameInode is internal to the package, we can just check that we can read it.
got, err := os.ReadFile(path)
if err != nil {
t.Fatal(err)
}
if string(got) != "hi" {
t.Errorf("expected content 'hi', got %q", string(got))
}
// Idempotency
if err := resource.Apply(); err != nil {
t.Fatalf("second Apply failed: %v", err)
}
}
func TestPresentHardlinkMovesRealFileAside(t *testing.T) {
resource.ResetRepository()
dir := t.TempDir()
path := filepath.Join(dir, "link")
if err := os.WriteFile(path, []byte("real file"), 0o644); err != nil {
t.Fatal(err)
}
target := filepath.Join(dir, "target")
if err := os.WriteFile(target, []byte("target content"), 0o644); err != nil {
t.Fatal(err)
}
Present(path, WithHardlink(target))
if err := resource.Apply(); err != nil {
t.Fatalf("Apply failed: %v", err)
}
if _, err := os.Stat(path + ".old"); os.IsNotExist(err) {
t.Errorf("expected real file to be moved to %s.old", path)
}
}
func TestPresentHardlinkMissingTarget(t *testing.T) {
resource.ResetRepository()
dir := t.TempDir()
path := filepath.Join(dir, "link")
target := filepath.Join(dir, "nonexistent")
Present(path, WithHardlink(target))
if err := resource.Apply(); err == nil {
t.Error("expected Apply to fail when hardlink target is missing")
}
}
func TestPresentAbsentSymlink(t *testing.T) {
resource.ResetRepository()
dir := t.TempDir()
path := filepath.Join(dir, "link")
target := filepath.Join(dir, "target")
if err := os.WriteFile(target, []byte("hi"), 0o644); err != nil {
t.Fatal(err)
}
if err := os.Symlink(target, path); err != nil {
t.Fatal(err)
}
Present(path, IsAbsent)
if err := resource.Apply(); err != nil {
t.Fatalf("Apply failed: %v", err)
}
if _, err := os.Stat(path); !os.IsNotExist(err) {
t.Errorf("expected symlink %s to be removed", path)
}
}
func TestAbsentSymlink(t *testing.T) {
resource.ResetRepository()
dir := t.TempDir()
path := filepath.Join(dir, "link")
target := filepath.Join(dir, "target")
if err := os.WriteFile(target, []byte("hi"), 0o644); err != nil {
t.Fatal(err)
}
if err := os.Symlink(target, path); err != nil {
t.Fatal(err)
}
Absent(path)
if err := resource.Apply(); err != nil {
t.Fatalf("Apply failed: %v", err)
}
if _, err := os.Stat(path); !os.IsNotExist(err) {
t.Errorf("expected symlink %s to be removed", path)
}
}
func TestBuildRequiresKindOrAbsent(t *testing.T) {
resource.ResetRepository()
dir := t.TempDir()
path := filepath.Join(dir, "link")
// Call Present without specifying symlink, hardlink, or absent
Present(path)
if err := resource.Apply(); err == nil {
t.Error("expected Apply to fail when neither kind nor absent is specified")
}
}
|
