概述
此示例展示了如何通过在LiteSVM中操控slot和时间戳来测试依赖时间的功能。
完整测试
tests/time_test.rs
use litesvm::LiteSVM;use solana_sdk::clock::Clock;#[test]fn test_time_locked_feature() {let mut svm = LiteSVM::new();// Get current timelet clock: Clock = svm.get_sysvar();println!("Starting slot: {}", clock.slot);println!("Starting timestamp: {}", clock.unix_timestamp);// Test something at current time// ... your test logic ...// Jump forward 100 slotssvm.warp_to_slot(clock.slot + 100);// Verify time changedlet new_clock: Clock = svm.get_sysvar();assert_eq!(new_clock.slot, clock.slot + 100);// Test time-locked feature is now available// ... your test logic ...println!("Time travel successful!");}
测试基于slot的功能
#[test]fn test_slot_based_unlock() {let mut svm = LiteSVM::new();// Get starting slotlet start_slot = svm.get_sysvar::<Clock>().slot;// Deploy program with slot-based locklet program_id = deploy_locked_program(&mut svm);// Try to call before unlock slot (should fail)let result = call_program(&mut svm, program_id);assert!(result.is_err());// Warp to unlock slotsvm.warp_to_slot(start_slot + 1000);// Now it should succeedlet result = call_program(&mut svm, program_id);assert!(result.is_ok());}
测试基于时间戳的功能
#[test]fn test_timestamp_based_feature() {let mut svm = LiteSVM::new();// Get current timestamplet clock: Clock = svm.get_sysvar();let current_time = clock.unix_timestamp;// Warp forward 1 hour (3600 seconds)let target_slot = clock.slot + (3600.0 / 0.4) as u64; // ~0.4s per slotsvm.warp_to_slot(target_slot);// Verify timestamp increasedlet new_clock: Clock = svm.get_sysvar();assert!(new_clock.unix_timestamp >= current_time + 3600);}
关键要点
- 时钟系统变量:使用
svm.get_sysvar::<Clock>()获取当前时间 - Slot跳转:使用
warp_to_slot()在时间上向前跳转 - 时间戳计算:在Solana上,每个slot大约对应~0.4秒
- 测试解锁:通过跳转至解锁时间之后来测试时间锁定功能
- 不可回退:只能向前跳转,无法回退到过去的时间
常见使用场景
- 归属计划
- 时间锁定提款
- 质押/解质押冷却期
- 拍卖结束时间
- 租赁期限
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