Strategy · Pine Script v6 · On the chart

Backtest Adapter

by SynergOps· code credited to jdehorty

This strategy adapts an external numeric source into backtest orders on the price chart.

View on GitHub

GitHub stars7on the repository
Pine versionv6current
Lines of code28
Settings3inputs
LicenceMPL-2.0
Last update1 year ago4 Aug 2025

Add It to Your TradingView Chart

  1. 1Copy the scriptPress Copy script above, or the copy button on the code below.
  2. 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
  3. 3Paste over the templateCreate a new strategy, select all of the template text and paste. Press Save and give it a name.
  4. 4Add it to the chartPress Add to chart. The trades and results appear in the Strategy Tester tab; adjust the settings with the gear icon.

Source Code

28 lines of Pine Script v6 from Lorentzian Classification/backtesting stream.pine, published under MPL-2.0. Keep the author's credit and licence lines when you reuse it.

backtesting stream.pine
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © jdehorty
//@version=6
strategy('Backtest Adapter', overlay = true, initial_capital = 1000, default_qty_type = strategy.percent_of_equity, default_qty_value = 10, currency = currency.USD, pyramiding = 0, margin_long = 10, margin_short = 10, commission_type = strategy.commission.percent, commission_value = 0.05, calc_on_order_fills = false, calc_on_every_tick = false)
useDateFilter = input.bool(true, title = 'Begin Backtest at Start Date', group = 'Backtest Time Period')
backtestStartDate = input.time(timestamp('11 May 2022'), title = 'Start Date', group = 'Backtest Time Period')
inTradeWindow = not useDateFilter or time >= backtestStartDate

src = input.source(title = 'Source', defval = close, tooltip = 'Source of the input data', group = 'General Settings')

// Set up your entry and exit conditions for positions based on the indicator stream. 
// The values here must correspond to the values in the Source indicator.
startLongTrade = src == 1
endLongTrade = src == 2
startShortTrade = src == -1
endShortTrade = src == -2

if startLongTrade and inTradeWindow
    strategy.order('Enter Long', strategy.long)

if endLongTrade and strategy.position_size > 0 and inTradeWindow
    strategy.order('Exit Long', strategy.short)

if startShortTrade and inTradeWindow
    strategy.order('Enter Short', strategy.short)

if endShortTrade and strategy.position_size < 0 and inTradeWindow
    strategy.order('Exit Short', strategy.long)

Overview

Backtest Adapter opens a long when the source equals 1 and closes that long when it equals 2. It opens a short at -1 and closes it at -2. An optional start-date filter blocks trades before the chosen time. Size defaults to ten percent of equity, with a percent commission and margin, and there is no stop loss or take profit. The script does not calculate its own signals.

Details

Published by

SynergOps on GitHub

Code credit

jdehorty, as written in the script's header

Type

Strategy, Pine Script v6

Draws

On the price chart

Markets

Any symbol

Timeframes

Any timeframe

Risk Notes

  • The strategy enters trades without a stop loss

Settings

The inputs you can change from the gear icon on the chart. Defaults are the author's.

SettingTypeDefaultVariable
Begin Backtest at Start DatebooltrueuseDateFilter
Start Datetimetimestamp('11 May 2022')backtestStartDate
Sourcesourceclosesrc
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.

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