continue
		}
		defer os.Remove(f)
		id, err := ReadFile(f)
		if id != expectedID || err != nil {
			t.Errorf("ReadFile(testdata/%s) = %q, %v, want %q, nil", f, id, err, expectedID)
		}
		old := readSize
		readSize = 2048
		id, err = ReadFile(f)
		readSize = old
		if id != expectedID || err != nil {
			t.Errorf("ReadFile(%s) [readSize=2k] = %q, %v, want %q, nil", f, id, err, expectedID)
		}

Jes Cok <******@****.***> 1706627994 +0000

Constantin Konstantinidis <******@****.***> 1699176912 +0100

			if err != nil {
				t.Fatal(err)
			}
			data, err := r.ReadFile(ctx, tt.rev, tt.file, 100)
			if err != nil {
				if tt.err == "" {
					t.Fatalf("ReadFile: unexpected error %v", err)
				}
				if !strings.Contains(err.Error(), tt.err) {
					t.Fatalf("ReadFile: wrong error %q, want %q", err, tt.err)
				}
				if len(data) != 0 {
					t.Errorf("ReadFile: non-empty data %q with error %v", data, err)
				}
				return

	}
	if err != nil {
		t.Fatal(err)
	}

	newGomodData, err := os.ReadFile(s.Path("go.mod"))
	if err != nil {
		t.Fatalf("reading go.mod after -testsum: %v", err)
	}
	if !bytes.Equal(newGomodData, archive.Files[gomodIdx].Data) {
		archive.Files[gomodIdx].Data = newGomodData
		rewrite = true
	}

	newGosumData, err := os.ReadFile(s.Path("go.sum"))
	if err != nil && !os.IsNotExist(err) {

Alan Donovan <******@****.***> 1711741778 -0400

Michael Matloob <******@****.***> 1708031260 -0500

Jonathan Amsterdam <******@****.***> 1700059801 -0500

			r.rawBuffer = append(r.rawBuffer, line...)
		}
		line = r.rawBuffer
	}
	readSize := len(line)
	if readSize > 0 && err == io.EOF {
		err = nil
		// For backwards compatibility, drop trailing \r before EOF.
		if line[readSize-1] == '\r' {
			line = line[:readSize-1]
		}
	}
	r.numLine++
	r.offset += int64(readSize)
	// Normalize \r\n to \n on all input lines.

	}
	args.Language = lang

	tmpl := template.Must(template.New("README").Parse(readmeTmpl[1:]))
	buf := new(bytes.Buffer)
	if err := tmpl.Execute(buf, args); err != nil {
		t.Fatal(err)
	}

	const readmePath = "testdata/script/README"
	old, err := os.ReadFile(readmePath)
	if err != nil {
		t.Fatal(err)
	}
	diff := diff.Diff(readmePath, old, "readmeTmpl", buf.Bytes())