| 1 | package builtin |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "encoding/json" |
| 6 | "os" |
| 7 | "path/filepath" |
| 8 | "strings" |
| 9 | "testing" |
| 10 | ) |
| 11 | |
| 12 | // TestDeleteRangeSameAnchorNonInclusiveNoDup probes the degenerate but valid |
| 13 | // call where start_anchor == end_anchor (one unique line) with inclusive=false. |
| 14 | // "delete nothing between a line and itself" must not corrupt the file; the |
| 15 | // overlap in the keep slices would otherwise duplicate that line. |
| 16 | func TestDeleteRangeSameAnchorNonInclusiveNoDup(t *testing.T) { |
| 17 | dir := t.TempDir() |
| 18 | path := filepath.Join(dir, "f.txt") |
| 19 | if err := os.WriteFile(path, []byte("A\nB\nC\n"), 0o644); err != nil { |
| 20 | t.Fatal(err) |
| 21 | } |
| 22 | args, _ := json.Marshal(map[string]any{ |
| 23 | "path": path, |
| 24 | "start_anchor": "B", |
| 25 | "end_anchor": "B", |
| 26 | "inclusive": false, |
| 27 | }) |
| 28 | _, err := deleteRange{}.Execute(context.Background(), args) |
| 29 | got, _ := os.ReadFile(path) |
| 30 | if strings.Count(string(got), "B") > 1 { |
| 31 | t.Fatalf("line B was duplicated — file corrupted: %q (err=%v)", string(got), err) |
| 32 | } |
| 33 | } |
| 34 |