How can I write unit tests with a future timestamp?

Question

I have an ICO program created using Anchor, and I want to test with a future timestamp. How can I write unit tests with a future timestamp?

Answer 1

You can use Solana Bankrun time travel to do this: https://kevinheavey.github.io/solana-bankrun/tutorial/#time-travel

    const timestamp = Math.floor(Date.now() / 1000);

    // Turn forward the clock for 11 minutes
    const currentClock = await client.getClock();
    context.setClock(
      new Clock(
        currentClock.slot,
        currentClock.epochStartTimestamp,
        currentClock.epoch,
        currentClock.leaderScheduleEpoch,
        BigInt(timestamp) + BigInt(60 * 11)
      )
    );

Here is an example: https://github.com/solana-developers/solana-game-preset/blob/main/program/jesttests/energy-refill-time.test.ts

luzid.app supports similar features. Havent tried it yet though.

Answer 2

I like this summary at Ackee bootcamp https://github.com/Ackee-Blockchain/Solana-Auditors-Bootcamp/tree/master/Lesson-2#testing-using-typescript-1

1. Wait for the amount of time you need to get over the threshold.
   1. It's good to set short thresholds in your program for testing
   2. Setup test validator to set shorter time for epoch length https://github.com/marinade-finance/marinade-ts-sdk/blob/v5.0.6/Anchor.toml#L28

For example in our SDK tests, we wait to get the stake account activated https://github.com/marinade-finance/marinade-ts-sdk/blob/v5.0.6/test/test-world.ts#L210

2. Use solana bankrun https://github.com/kevinheavey/solana-bankrun/ for testing where you can fast forward (or backwards) the time with warp_to_slot or warp_to_epoch or https://github.com/kevinheavey/solana-bankrun/blob/main/tests/clock-example/clock.test.ts#L28

Answer 3

i am not sure to understand where is the problem here ? Just get the current timestamp and add X seconds to it ?