From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- third_party/rust/env_logger/examples/in_tests.rs | 54 ++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 third_party/rust/env_logger/examples/in_tests.rs (limited to 'third_party/rust/env_logger/examples/in_tests.rs') diff --git a/third_party/rust/env_logger/examples/in_tests.rs b/third_party/rust/env_logger/examples/in_tests.rs new file mode 100644 index 0000000000..c4487cc9c1 --- /dev/null +++ b/third_party/rust/env_logger/examples/in_tests.rs @@ -0,0 +1,54 @@ +/*! +Using `env_logger` in tests. + +Log events will be captured by `cargo` and only printed if the test fails. +You can run this example by calling: + +```text +cargo test --example in_tests +``` + +You should see the `it_does_not_work` test fail and include its log output. +*/ + +#[cfg_attr(test, macro_use)] +extern crate log; + +fn main() {} + +#[cfg(test)] +mod tests { + fn init_logger() { + let _ = env_logger::builder() + // Include all events in tests + .filter_level(log::LevelFilter::max()) + // Ensure events are captured by `cargo test` + .is_test(true) + // Ignore errors initializing the logger if tests race to configure it + .try_init(); + } + + #[test] + fn it_works() { + init_logger(); + + let a = 1; + let b = 2; + + debug!("checking whether {} + {} = 3", a, b); + + assert_eq!(3, a + b); + } + + #[test] + fn it_does_not_work() { + init_logger(); + + let a = 1; + let b = 2; + + debug!("checking whether {} + {} = 6", a, b); + + assert_eq!(6, a + b); + } +} -- cgit v1.2.3