0be67ad027
* subscriber: add feature flags to tests (#1532) ## Motivation Currently we can't run ```bash cargo test -p tracing-subscriber --no-default-features ``` successfully, because there are a bunch of tests for feature flagged APIs that are always enabled. ## Solution This commit adds feature flags to the modules and/or individual test cases that test feature-flagged APIs. There are still a few doctests that use feature-flagged APIs, and will fail with `--no-default-features`. These are primarily the examples for various `Layer::context` methods that rely on `LookupSpan`, and use the `Registry` type, as it's the only subscriber that *implements* `LookupSpan`. We could consider changing these examples, either by removing the actual use of the layers in them, or by changing them to use a mocked-out version of the registry. However, I think it's nicer to show how the API would be used in real life. Perhaps we should just run ```bash cargo test -p tracing-subscriber --no-default-features--tests --lib ``` to ignore doctests when testing without default features. Signed-off-by: Eliza Weisman <eliza@buoyant.io> Co-authored-by: David Barsky <me@davidbarsky.com>
10 lines
263 B
Rust
10 lines
263 B
Rust
#![cfg(feature = "fmt")]
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use tracing_subscriber::filter::LevelFilter;
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#[test]
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fn fmt_sets_max_level_hint() {
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tracing_subscriber::fmt()
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.with_max_level(LevelFilter::DEBUG)
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.init();
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assert_eq!(LevelFilter::current(), LevelFilter::DEBUG);
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}
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