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fix: The Rust Programming Language 11.2 中文翻译错误 (#79)

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Autumnal_Joy 2022-06-06 13:20:05 +08:00 committed by GitHub
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src/ch11-02-running-tests.md
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@ -54,57 +54,24 @@ mod tests {
运行 `cargo test` 将会看到这些测试的输出：
```text
running 2 tests
test tests::this_test_will_pass ... ok
test tests::this_test_will_fail ... FAILED
failures:
---- tests::this_test_will_fail stdout ----
I got the value 8
thread 'tests::this_test_will_fail' panicked at 'assertion failed: `(left == right)`
left: `5`,
right: `10`', src/lib.rs:19:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.
failures:
tests::this_test_will_fail
test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
```console
{{#include ../listings/ch11-writing-automated-tests/listing-11-10/output.txt}}
```
注意输出中不会出现测试通过时打印的内容，即 `I got the value 4`。因为当测试通过时，这些输出会被截获。失败测试的输出 `I got the value 8` ，则出现在输出的测试摘要部分，同时也显示了测试失败的原因。
注意输出中不会出现测试通过时打印的内容，即 `I got the value 4`。因为当测试通过时，这些输出会被截获。失败测试的输出 `I got the value 8`，则出现在输出的测试摘要部分，同时也显示了测试失败的原因。
如果你希望也能看到通过的测试中打印的值，截获输出的行为可以通过 `--nocapture` 参数来禁用：
如果你希望也能看到通过的测试中打印的值，可以通过在末尾增加 `--show-output` 参数来告知 Rust 显示通过测试的输出：
```text
$ cargo test -- --nocapture
```console
$ cargo test -- --show-output
```
使用 `--nocapture` 参数再次运行示例 11-10 中的测试会显示如下输出：
使用 `--show-output` 参数再次运行示例 11-10 中的测试会显示如下输出：
```text
running 2 tests
I got the value 4
I got the value 8
test tests::this_test_will_pass ... ok
thread 'tests::this_test_will_fail' panicked at 'assertion failed: `(left == right)`
left: `5`,
right: `10`', src/lib.rs:19:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.
test tests::this_test_will_fail ... FAILED
failures:
failures:
tests::this_test_will_fail
test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
```console
{{#include ../listings/ch11-writing-automated-tests/output-only-01-show-output/output.txt}}
```
注意测试的输出和测试结果的输出是相互交叉的，这是由于测试是并行运行的（见上一部分）。尝试一同使用 `--test-threads=1` 和 `--nocapture` 功能来看看输出是什么样子！
### 通过指定名字来运行部分测试
有时运行整个测试集会耗费很长时间。如果你负责特定位置的代码，你可能会希望只运行与这些代码相关的测试。你可以向 `cargo test` 传递所希望运行的测试名称的参数来选择运行哪些测试。