Add insert command

tests/contract/insert_ledger_test.go

@@ -0,0 +1,106 @@
+package contract
+
+import (
+	"bytes"
+	"context"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	renamercmd "github.com/rogeecn/renamer/cmd"
+	"github.com/rogeecn/renamer/internal/history"
+	"github.com/rogeecn/renamer/internal/insert"
+	"github.com/rogeecn/renamer/internal/listing"
+)
+
+func TestInsertLedgerMetadataAndUndo(t *testing.T) {
+	t.Parallel()
+
+	tmp := t.TempDir()
+	writeInsertLedgerFile(t, filepath.Join(tmp, "doc.txt"))
+
+	scope := &listing.ListingRequest{
+		WorkingDir:         tmp,
+		IncludeDirectories: false,
+		Recursive:          false,
+		IncludeHidden:      false,
+		Format:             listing.FormatTable,
+	}
+	if err := scope.Validate(); err != nil {
+		t.Fatalf("validate scope: %v", err)
+	}
+
+	req := insert.NewRequest(scope)
+	req.SetExecutionMode(false, true)
+	req.SetPositionAndText("$", "_ARCHIVE")
+
+	summary, planned, err := insert.Preview(context.Background(), req, nil)
+	if err != nil {
+		t.Fatalf("Preview error: %v", err)
+	}
+
+	entry, err := insert.Apply(context.Background(), req, planned, summary)
+	if err != nil {
+		t.Fatalf("Apply error: %v", err)
+	}
+
+	meta := entry.Metadata
+	if meta == nil {
+		t.Fatalf("expected metadata to be recorded")
+	}
+
+	if got := meta["insertText"]; got != "_ARCHIVE" {
+		t.Fatalf("expected insertText metadata, got %v", got)
+	}
+	if got := meta["positionToken"]; got != "$" {
+		t.Fatalf("expected position token metadata, got %v", got)
+	}
+	scopeMeta, ok := meta["scope"].(map[string]any)
+	if !ok {
+		t.Fatalf("expected scope metadata, got %T", meta["scope"])
+	}
+	if includeHidden, _ := scopeMeta["includeHidden"].(bool); includeHidden {
+		t.Fatalf("expected includeHidden to be false")
+	}
+
+	undoEntry, err := history.Undo(tmp)
+	if err != nil {
+		t.Fatalf("undo error: %v", err)
+	}
+	if undoEntry.Command != "insert" {
+		t.Fatalf("expected undo command to be insert, got %s", undoEntry.Command)
+	}
+	if _, err := os.Stat(filepath.Join(tmp, "doc.txt")); err != nil {
+		t.Fatalf("expected original file restored: %v", err)
+	}
+}
+
+func TestInsertZeroMatchExitsSuccessfully(t *testing.T) {
+	t.Parallel()
+
+	tmp := t.TempDir()
+	var out bytes.Buffer
+
+	cmd := renamercmd.NewRootCommand()
+	cmd.SetOut(&out)
+	cmd.SetErr(&out)
+	cmd.SetArgs([]string{"insert", "^", "TEST", "--yes", "--path", tmp})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("expected zero-match insert to succeed, err=%v output=%s", err, out.String())
+	}
+	if !strings.Contains(out.String(), "No candidates found.") {
+		t.Fatalf("expected zero-match notice, output=%s", out.String())
+	}
+}
+
+func writeInsertLedgerFile(t *testing.T, path string) {
+	t.Helper()
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		t.Fatalf("mkdir %s: %v", path, err)
+	}
+	if err := os.WriteFile(path, []byte("ledger"), 0o644); err != nil {
+		t.Fatalf("write file %s: %v", path, err)
+	}
+}