如何更改near_sdk_sim中的块时间戳？

Question

我需要更改 block_timestamp 来测试定时投票。

使用 VMContext，使用以下命令更改 block_timestamp：

context.block_timestamp = get_timestamp();
testing_env!(context.clone());

如何在near_sdk_sim中做到这一点？

let (root, contract) = deploy_contract();
// Change the block_timestamp

运行时有block_timestamp()，不知道如何使用它。

Answer 1

// You should start with the master_account returned by init_simulator
// You can change the genesis config by giving 
//   near_sdk_sim::runtime::GenesisConfig to init_simulator instead of None
// FYI, the default value of block timestamp was 0 with None
let master_account = init_simulator(None);

// If you don't wrap this code block below in brackets
//   or don't call it as a function from outside,
//   you will encounter the error 'already borrowed: BorrowMutError'.
{
  let mut runtime = master_account.borrow_runtime_mut();
  // In near_sdk_sim, 1 block takes 1 second !
  // So it changes the block timestamp 0 to 10000000000
  runtime.produce_blocks(10u64);
}