Vendor things

third-party/vendor/tracing-log/tests/log_tracer.rs

@@ -0,0 +1,123 @@
+use std::sync::{Arc, Mutex};
+use tracing::subscriber::with_default;
+use tracing_core::span::{Attributes, Record};
+use tracing_core::{span, Event, Level, LevelFilter, Metadata, Subscriber};
+use tracing_log::{LogTracer, NormalizeEvent};
+
+struct State {
+    last_normalized_metadata: Mutex<(bool, Option<OwnedMetadata>)>,
+}
+
+#[derive(PartialEq, Debug)]
+struct OwnedMetadata {
+    name: String,
+    target: String,
+    level: Level,
+    module_path: Option<String>,
+    file: Option<String>,
+    line: Option<u32>,
+}
+
+struct TestSubscriber(Arc<State>);
+
+impl Subscriber for TestSubscriber {
+    fn enabled(&self, meta: &Metadata<'_>) -> bool {
+        dbg!(meta);
+        true
+    }
+
+    fn max_level_hint(&self) -> Option<LevelFilter> {
+        Some(LevelFilter::from_level(Level::INFO))
+    }
+
+    fn new_span(&self, _span: &Attributes<'_>) -> span::Id {
+        span::Id::from_u64(42)
+    }
+
+    fn record(&self, _span: &span::Id, _values: &Record<'_>) {}
+
+    fn record_follows_from(&self, _span: &span::Id, _follows: &span::Id) {}
+
+    fn event(&self, event: &Event<'_>) {
+        dbg!(event);
+        *self.0.last_normalized_metadata.lock().unwrap() = (
+            event.is_log(),
+            event.normalized_metadata().map(|normalized| OwnedMetadata {
+                name: normalized.name().to_string(),
+                target: normalized.target().to_string(),
+                level: *normalized.level(),
+                module_path: normalized.module_path().map(String::from),
+                file: normalized.file().map(String::from),
+                line: normalized.line(),
+            }),
+        )
+    }
+
+    fn enter(&self, _span: &span::Id) {}
+
+    fn exit(&self, _span: &span::Id) {}
+}
+
+#[test]
+fn normalized_metadata() {
+    LogTracer::init().unwrap();
+    let me = Arc::new(State {
+        last_normalized_metadata: Mutex::new((false, None)),
+    });
+    let state = me.clone();
+
+    with_default(TestSubscriber(me), || {
+        log::info!("expected info log");
+        log::debug!("unexpected debug log");
+        let log = log::Record::builder()
+            .args(format_args!("Error!"))
+            .level(log::Level::Info)
+            .build();
+        log::logger().log(&log);
+        last(
+            &state,
+            true,
+            Some(OwnedMetadata {
+                name: "log event".to_string(),
+                target: "".to_string(),
+                level: Level::INFO,
+                module_path: None,
+                file: None,
+                line: None,
+            }),
+        );
+
+        let log = log::Record::builder()
+            .args(format_args!("Error!"))
+            .level(log::Level::Info)
+            .target("log_tracer_target")
+            .file(Some("server.rs"))
+            .line(Some(144))
+            .module_path(Some("log_tracer"))
+            .build();
+        log::logger().log(&log);
+        last(
+            &state,
+            true,
+            Some(OwnedMetadata {
+                name: "log event".to_string(),
+                target: "log_tracer_target".to_string(),
+                level: Level::INFO,
+                module_path: Some("log_tracer".to_string()),
+                file: Some("server.rs".to_string()),
+                line: Some(144),
+            }),
+        );
+
+        tracing::info!("test with a tracing info");
+        last(&state, false, None);
+    })
+}
+
+fn last(state: &State, should_be_log: bool, expected: Option<OwnedMetadata>) {
+    let lock = state.last_normalized_metadata.lock().unwrap();
+    let (is_log, metadata) = &*lock;
+    dbg!(&metadata);
+    assert_eq!(dbg!(*is_log), should_be_log);
+    assert_eq!(metadata.as_ref(), expected.as_ref());
+}

third-party/vendor/tracing-log/tests/reexport_log_crate.rs

@@ -0,0 +1,10 @@
+use tracing_log::{log::LevelFilter, LogTracer};
+
+/// This test makes sure we can access `log::LevelFilter` through the `tracing_log` crate and don't
+/// have to depend on `log` separately.
+///
+/// See https://github.com/tokio-rs/tracing/issues/552.
+#[test]
+fn can_initialize_log_tracer_with_level() {
+    LogTracer::init_with_filter(LevelFilter::Error).unwrap();
+}