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1.6 Testing : Test should pass rather than fail

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难度
1/5
预计耗时
1 小时以内
新手友好度
35/100
Issue 类型
缺陷
描述清晰度
描述清楚
活跃度
停滞
技术栈
rust

调研方向

先从 issue 中链接的测试教程和所展示的 CLI 测试开始,然后运行 cargo test --test cli 以重现不匹配。将断言与命令报告的 stderr 进行比较,并调整示例,使测试与文档中记录的错误相匹配;当测试报告有一个通过的测试时即表示完成。

由索引模型根据 Issue 内容生成。

描述

Below test with more description can be found at

use assert_cmd::prelude::*; // Add methods on commands
use predicates::prelude::*; // Used for writing assertions
use std::process::Command; // Run programs

#[test]
fn file_doesnt_exist() -> Result<(), Box<dyn std::error::Error>> {
    let mut cmd = Command::cargo_bin("grrs")?;

    cmd.arg("foobar").arg("test/file/doesnt/exist");
    cmd.assert()
        .failure()
        .stderr(predicate::str::contains("could not read file"));

    Ok(())
}

My Expectation:
grss rightly throws the exception when file does not exist. This test should capture the exception and should be pass as it has captured the right exception. But on running 'cargo test', this test is reported as failure.

Current Result:
test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.55s
IMO Expected Result
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.55s

Output of cargo test:
` Running tests/cli.rs (target/debug/deps/cli-5cefbff21b07bd9f)

running 1 test
test file_doesnt_exist ... FAILED

failures:

---- file_doesnt_exist stdout ----
thread 'file_doesnt_exist' panicked at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5:
Unexpected stderr, failed var.contains(could not read file)
├── var: Error: Could not read file 'test/file/doesnt/exists'
│
│ Caused by:
│ No such file or directory (os error 2)
└── var as str: Error: Could not read file 'test/file/doesnt/exists'

Caused by:
    No such file or directory (os error 2)

command="/Users/admin/Kishor/SxT/repos/grrs/target/debug/grrs" "foobar" "test/file/doesnt/exists"
code=1
stdout=""
stderr=```
Error: Could not read file 'test/file/doesnt/exists'

Caused by:
No such file or directory (os error 2)



note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace


failures:
    file_doesnt_exist

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.55s

error: test failed, to rerun pass `--test cli`
`
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Rust
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