1 unstable release
0.0.1 | Mar 29, 2023 |
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#71 in #tracing-subscriber
26 downloads per month
12KB
76 lines
Capture and record logs for tracing span id
This crate allow testing if function emitted logs.
Example
Example how to use it with cucumber, you can find here.
use tracing::{error, span, Level};
use tracing_span_capture::{RecordedLogs, TracingSpanCaptureLayer};
use tracing_subscriber::layer::SubscriberExt;
use tracing_subscriber::util::SubscriberInitExt;
fn tested_code() {
error!("try capture this");
}
fn main() {
tracing_subscriber::fmt()
.finish()
.with(TracingSpanCaptureLayer)
.init();
let span = span!(Level::INFO, "");
let record = RecordedLogs::new(&span);
{
let _enter = span.enter();
tested_code();
}
let logs = record.into_logs();
let last_log = logs.into_iter().rev().next().unwrap();
assert_eq!(last_log.message, "try capture this");
}
License
Licensed under either of:
- Apache License, Version 2.0 (LICENSE-APACHE), or
- MIT license (LICENSE-MIT)
Dependencies
~1MB
~18K SLoC