302 lines
7.3 KiB
Rust
302 lines
7.3 KiB
Rust
/// 测试辅助函数模块
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///
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/// 提供常用的测试辅助功能
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use std::time::Duration;
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use tokio::time::{sleep, timeout};
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/// 等待条件满足
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///
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/// # Arguments
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/// * `condition` - 条件检查函数
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/// * `timeout_secs` - 超时时间（秒）
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/// * `check_interval_ms` - 检查间隔（毫秒）
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///
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/// # Returns
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/// * `Ok(())` - 条件满足
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/// * `Err(String)` - 超时
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pub async fn wait_for_condition<F>(
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mut condition: F,
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timeout_secs: u64,
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check_interval_ms: u64,
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) -> Result<(), String>
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where
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F: FnMut() -> bool,
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{
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let timeout_duration = Duration::from_secs(timeout_secs);
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let check_interval = Duration::from_millis(check_interval_ms);
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let result = timeout(timeout_duration, async {
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while !condition() {
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sleep(check_interval).await;
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}
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})
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.await;
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match result {
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Ok(_) => Ok(()),
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Err(_) => Err(format!("Timeout after {} seconds", timeout_secs)),
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}
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}
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/// 重试执行函数直到成功
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///
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/// # Arguments
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/// * `f` - 要执行的函数
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/// * `max_retries` - 最大重试次数
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/// * `retry_interval_ms` - 重试间隔（毫秒）
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///
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/// # Returns
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/// * `Ok(T)` - 执行成功的结果
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/// * `Err(String)` - 达到最大重试次数
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pub async fn retry_until_success<F, T, E>(
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mut f: F,
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max_retries: usize,
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retry_interval_ms: u64,
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) -> Result<T, String>
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where
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F: FnMut() -> Result<T, E>,
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E: std::fmt::Display,
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{
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let retry_interval = Duration::from_millis(retry_interval_ms);
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for attempt in 0..max_retries {
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match f() {
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Ok(result) => return Ok(result),
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Err(e) => {
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if attempt == max_retries - 1 {
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return Err(format!(
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"Failed after {} attempts. Last error: {}",
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max_retries, e
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));
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}
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log::debug!("Attempt {} failed: {}. Retrying...", attempt + 1, e);
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sleep(retry_interval).await;
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}
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}
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}
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unreachable!()
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}
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/// 并发执行多个任务
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///
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/// # Arguments
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/// * `tasks` - 任务列表
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///
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/// # Returns
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/// * 所有任务的结果
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pub async fn run_concurrent<F, T>(tasks: Vec<F>) -> Vec<T>
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where
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F: std::future::Future<Output = T> + Send + 'static,
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T: Send + 'static,
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{
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let handles: Vec<_> = tasks
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.into_iter()
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.map(|task| tokio::spawn(task))
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.collect();
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let mut results = Vec::new();
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for handle in handles {
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if let Ok(result) = handle.await {
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results.push(result);
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}
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}
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results
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}
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/// 生成随机测试数据
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pub mod random {
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use rand::Rng;
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/// 生成随机字节数组
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pub fn random_bytes<const N: usize>() -> [u8; N] {
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let mut rng = rand::thread_rng();
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let mut bytes = [0u8; N];
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for byte in &mut bytes {
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*byte = rng.gen();
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}
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bytes
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}
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/// 生成随机u64
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pub fn random_u64() -> u64 {
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rand::thread_rng().gen()
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}
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/// 生成指定范围内的随机u64
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pub fn random_u64_range(min: u64, max: u64) -> u64 {
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rand::thread_rng().gen_range(min..=max)
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}
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/// 生成随机字符串
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pub fn random_string(len: usize) -> String {
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use rand::distributions::Alphanumeric;
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rand::thread_rng()
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.sample_iter(&Alphanumeric)
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.take(len)
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.map(char::from)
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.collect()
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}
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}
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/// 性能测量工具
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pub mod perf {
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use std::time::Instant;
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/// 测量函数执行时间
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pub fn measure_time<F, T>(f: F) -> (T, std::time::Duration)
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where
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F: FnOnce() -> T,
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{
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let start = Instant::now();
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let result = f();
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let duration = start.elapsed();
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(result, duration)
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}
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/// 测量异步函数执行时间
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pub async fn measure_time_async<F, T>(f: F) -> (T, std::time::Duration)
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where
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F: std::future::Future<Output = T>,
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{
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let start = Instant::now();
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let result = f.await;
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let duration = start.elapsed();
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(result, duration)
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}
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/// 计算TPS
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pub fn calculate_tps(tx_count: usize, duration: std::time::Duration) -> f64 {
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tx_count as f64 / duration.as_secs_f64()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[tokio::test]
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async fn test_wait_for_condition_success() {
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let mut counter = 0;
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let result = wait_for_condition(
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|| {
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counter += 1;
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counter >= 5
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},
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5,
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10,
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)
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.await;
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assert!(result.is_ok());
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assert!(counter >= 5);
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}
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#[tokio::test]
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async fn test_wait_for_condition_timeout() {
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let result = wait_for_condition(|| false, 1, 10).await;
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assert!(result.is_err());
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}
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#[tokio::test]
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async fn test_retry_until_success() {
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let mut counter = 0;
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let result = retry_until_success(
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|| {
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counter += 1;
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if counter >= 3 {
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Ok(counter)
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} else {
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Err("Not ready")
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}
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},
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5,
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10,
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)
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.await;
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assert!(result.is_ok());
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assert_eq!(result.unwrap(), 3);
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}
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#[tokio::test]
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async fn test_retry_until_failure() {
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let result = retry_until_success(|| Err::<(), _>("Always fail"), 3, 10).await;
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assert!(result.is_err());
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}
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// 注意：run_concurrent测试被禁用，因为Rust的impl Trait限制
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// 实际使用中可以通过其他方式处理并发任务
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// #[tokio::test]
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// async fn test_run_concurrent() {
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// // 测试代码
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// }
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#[test]
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fn test_random_bytes() {
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let bytes1 = random::random_bytes::<32>();
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let bytes2 = random::random_bytes::<32>();
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// 随机生成的字节应该不同
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assert_ne!(bytes1, bytes2);
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}
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#[test]
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fn test_random_u64() {
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let num1 = random::random_u64();
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let num2 = random::random_u64();
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// 随机生成的数字应该不同（概率极高）
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assert_ne!(num1, num2);
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}
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#[test]
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fn test_random_u64_range() {
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for _ in 0..100 {
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let num = random::random_u64_range(10, 20);
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assert!(num >= 10 && num <= 20);
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}
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}
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#[test]
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fn test_random_string() {
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let s1 = random::random_string(10);
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let s2 = random::random_string(10);
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assert_eq!(s1.len(), 10);
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assert_eq!(s2.len(), 10);
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assert_ne!(s1, s2);
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}
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#[test]
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fn test_measure_time() {
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let (result, duration) = perf::measure_time(|| {
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std::thread::sleep(Duration::from_millis(100));
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42
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});
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assert_eq!(result, 42);
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assert!(duration.as_millis() >= 100);
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}
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#[tokio::test]
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async fn test_measure_time_async() {
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let (result, duration) = perf::measure_time_async(async {
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tokio::time::sleep(Duration::from_millis(100)).await;
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42
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})
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.await;
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assert_eq!(result, 42);
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assert!(duration.as_millis() >= 100);
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}
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#[test]
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fn test_calculate_tps() {
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let tps = perf::calculate_tps(1000, Duration::from_secs(1));
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assert_eq!(tps, 1000.0);
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let tps = perf::calculate_tps(5000, Duration::from_millis(500));
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assert_eq!(tps, 10000.0);
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}
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}
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