assert-panic

该库提供了一个宏，用于断言发生 panic，并可选择地断言发生的 panic 类型。

最简单的版本会给你一个包装的 Any panic。

示例

# use std::any::Any;
use assert_panic::assert_panic;

let _: Box<dyn Any + Send + 'static> =
    assert_panic!(panic!("at the Disco"));

assert_panic!(panic!("at the Disco"), &str);

assert_panic!(
    { assert_panic!({}); },
    String,
    starts with "assert_panic! argument did not panic:",
);

assert_panic!(
    assert_panic!(panic!("at the Disco"), String),
    String,
    starts with "Expected a `String` panic but found one with TypeId { t: ",
);

assert_panic!(
    assert_panic!(panic!("found"), &str, contains "expected"),
    String,
    "Expected a panic containing \"expected\" but found \"found\"",
);

assert_panic!(
    assert_panic!(panic!("found"), &str, starts with "expected"),
    String,
    "Expected a panic starting with \"expected\" but found \"found\"",
);

assert_panic!(
    assert_panic!(panic!(1_usize), usize, 2_usize),
    String,
    "Expected a panic equal to 2 but found 1",
);

版本控制

assert-panic 严格遵循 语义化版本 2.0.0，但有以下例外

• 在主版本变更时，次版本号不会重置为 0。
  将其视为全局功能级别。
• 在主版本或次版本变更时，补丁版本号不会重置为 0。
  将其视为全局补丁级别。
• 来自 assert-panic 的 panic 消息被视为实现细节。
  请只评估您直接控制的 panic 值。