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-rw-r--r--third_party/rust/tracing/tests/span.rs825
1 files changed, 825 insertions, 0 deletions
diff --git a/third_party/rust/tracing/tests/span.rs b/third_party/rust/tracing/tests/span.rs
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index 0000000000..4ed6500235
--- /dev/null
+++ b/third_party/rust/tracing/tests/span.rs
@@ -0,0 +1,825 @@
+// These tests require the thread-local scoped dispatcher, which only works when
+// we have a standard library. The behaviour being tested should be the same
+// with the standard lib disabled.
+#![cfg(feature = "std")]
+
+use std::thread;
+
+use tracing::{
+ field::{debug, display},
+ subscriber::with_default,
+ Level, Span,
+};
+use tracing_mock::*;
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn handles_to_the_same_span_are_equal() {
+ // Create a mock subscriber that will return `true` on calls to
+ // `Subscriber::enabled`, so that the spans will be constructed. We
+ // won't enter any spans in this test, so the subscriber won't actually
+ // expect to see any spans.
+ with_default(subscriber::mock().run(), || {
+ let foo1 = tracing::span!(Level::TRACE, "foo");
+ let foo2 = foo1.clone();
+ // Two handles that point to the same span are equal.
+ assert_eq!(foo1, foo2);
+ });
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn handles_to_different_spans_are_not_equal() {
+ with_default(subscriber::mock().run(), || {
+ // Even though these spans have the same name and fields, they will have
+ // differing metadata, since they were created on different lines.
+ let foo1 = tracing::span!(Level::TRACE, "foo", bar = 1u64, baz = false);
+ let foo2 = tracing::span!(Level::TRACE, "foo", bar = 1u64, baz = false);
+
+ assert_ne!(foo1, foo2);
+ });
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn handles_to_different_spans_with_the_same_metadata_are_not_equal() {
+ // Every time time this function is called, it will return a _new
+ // instance_ of a span with the same metadata, name, and fields.
+ fn make_span() -> Span {
+ tracing::span!(Level::TRACE, "foo", bar = 1u64, baz = false)
+ }
+
+ with_default(subscriber::mock().run(), || {
+ let foo1 = make_span();
+ let foo2 = make_span();
+
+ assert_ne!(foo1, foo2);
+ // assert_ne!(foo1.data(), foo2.data());
+ });
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn spans_always_go_to_the_subscriber_that_tagged_them() {
+ let subscriber1 = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run();
+ let subscriber2 = subscriber::mock().run();
+
+ let foo = with_default(subscriber1, || {
+ let foo = tracing::span!(Level::TRACE, "foo");
+ foo.in_scope(|| {});
+ foo
+ });
+ // Even though we enter subscriber 2's context, the subscriber that
+ // tagged the span should see the enter/exit.
+ with_default(subscriber2, move || foo.in_scope(|| {}));
+}
+
+// This gets exempt from testing in wasm because of: `thread::spawn` which is
+// not yet possible to do in WASM. There is work going on see:
+// <https://rustwasm.github.io/2018/10/24/multithreading-rust-and-wasm.html>
+//
+// But for now since it's not possible we don't need to test for it :)
+#[test]
+fn spans_always_go_to_the_subscriber_that_tagged_them_even_across_threads() {
+ let subscriber1 = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run();
+ let foo = with_default(subscriber1, || {
+ let foo = tracing::span!(Level::TRACE, "foo");
+ foo.in_scope(|| {});
+ foo
+ });
+
+ // Even though we enter subscriber 2's context, the subscriber that
+ // tagged the span should see the enter/exit.
+ thread::spawn(move || {
+ with_default(subscriber::mock().run(), || {
+ foo.in_scope(|| {});
+ })
+ })
+ .join()
+ .unwrap();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn dropping_a_span_calls_drop_span() {
+ let (subscriber, handle) = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ let span = tracing::span!(Level::TRACE, "foo");
+ span.in_scope(|| {});
+ drop(span);
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn span_closes_after_event() {
+ let (subscriber, handle) = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .event(event::mock())
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ tracing::span!(Level::TRACE, "foo").in_scope(|| {
+ tracing::event!(Level::DEBUG, {}, "my tracing::event!");
+ });
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn new_span_after_event() {
+ let (subscriber, handle) = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .event(event::mock())
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .enter(span::mock().named("bar"))
+ .exit(span::mock().named("bar"))
+ .drop_span(span::mock().named("bar"))
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ tracing::span!(Level::TRACE, "foo").in_scope(|| {
+ tracing::event!(Level::DEBUG, {}, "my tracing::event!");
+ });
+ tracing::span!(Level::TRACE, "bar").in_scope(|| {});
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn event_outside_of_span() {
+ let (subscriber, handle) = subscriber::mock()
+ .event(event::mock())
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ tracing::debug!("my tracing::event!");
+ tracing::span!(Level::TRACE, "foo").in_scope(|| {});
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn cloning_a_span_calls_clone_span() {
+ let (subscriber, handle) = subscriber::mock()
+ .clone_span(span::mock().named("foo"))
+ .run_with_handle();
+ with_default(subscriber, || {
+ let span = tracing::span!(Level::TRACE, "foo");
+ // Allow the "redundant" `.clone` since it is used to call into the `.clone_span` hook.
+ #[allow(clippy::redundant_clone)]
+ let _span2 = span.clone();
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn drop_span_when_exiting_dispatchers_context() {
+ let (subscriber, handle) = subscriber::mock()
+ .clone_span(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .run_with_handle();
+ with_default(subscriber, || {
+ let span = tracing::span!(Level::TRACE, "foo");
+ let _span2 = span.clone();
+ drop(span);
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn clone_and_drop_span_always_go_to_the_subscriber_that_tagged_the_span() {
+ let (subscriber1, handle1) = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .clone_span(span::mock().named("foo"))
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .run_with_handle();
+ let subscriber2 = subscriber::mock().done().run();
+
+ let foo = with_default(subscriber1, || {
+ let foo = tracing::span!(Level::TRACE, "foo");
+ foo.in_scope(|| {});
+ foo
+ });
+ // Even though we enter subscriber 2's context, the subscriber that
+ // tagged the span should see the enter/exit.
+ with_default(subscriber2, move || {
+ let foo2 = foo.clone();
+ foo.in_scope(|| {});
+ drop(foo);
+ drop(foo2);
+ });
+
+ handle1.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn span_closes_when_exited() {
+ let (subscriber, handle) = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ let foo = tracing::span!(Level::TRACE, "foo");
+
+ foo.in_scope(|| {});
+
+ drop(foo);
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn enter() {
+ let (subscriber, handle) = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .event(event::mock())
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ let foo = tracing::span!(Level::TRACE, "foo");
+ let _enter = foo.enter();
+ tracing::debug!("dropping guard...");
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn entered() {
+ let (subscriber, handle) = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .event(event::mock())
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ let _span = tracing::span!(Level::TRACE, "foo").entered();
+ tracing::debug!("dropping guard...");
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn entered_api() {
+ let (subscriber, handle) = subscriber::mock()
+ .enter(span::mock().named("foo"))
+ .event(event::mock())
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ let span = tracing::span!(Level::TRACE, "foo").entered();
+ let _derefs_to_span = span.id();
+ tracing::debug!("exiting span...");
+ let _: Span = span.exit();
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn moved_field() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock().named("foo").with_field(
+ field::mock("bar")
+ .with_value(&display("hello from my span"))
+ .only(),
+ ),
+ )
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ let from = "my span";
+ let span = tracing::span!(
+ Level::TRACE,
+ "foo",
+ bar = display(format!("hello from {}", from))
+ );
+ span.in_scope(|| {});
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn dotted_field_name() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock()
+ .named("foo")
+ .with_field(field::mock("fields.bar").with_value(&true).only()),
+ )
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ tracing::span!(Level::TRACE, "foo", fields.bar = true);
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn borrowed_field() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock().named("foo").with_field(
+ field::mock("bar")
+ .with_value(&display("hello from my span"))
+ .only(),
+ ),
+ )
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let from = "my span";
+ let mut message = format!("hello from {}", from);
+ let span = tracing::span!(Level::TRACE, "foo", bar = display(&message));
+ span.in_scope(|| {
+ message.insert_str(10, " inside");
+ });
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+// If emitting log instrumentation, this gets moved anyway, breaking the test.
+#[cfg(not(feature = "log"))]
+fn move_field_out_of_struct() {
+ use tracing::field::debug;
+
+ #[derive(Debug)]
+ struct Position {
+ x: f32,
+ y: f32,
+ }
+
+ let pos = Position {
+ x: 3.234,
+ y: -1.223,
+ };
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock().named("foo").with_field(
+ field::mock("x")
+ .with_value(&debug(3.234))
+ .and(field::mock("y").with_value(&debug(-1.223)))
+ .only(),
+ ),
+ )
+ .new_span(
+ span::mock()
+ .named("bar")
+ .with_field(field::mock("position").with_value(&debug(&pos)).only()),
+ )
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let pos = Position {
+ x: 3.234,
+ y: -1.223,
+ };
+ let foo = tracing::span!(Level::TRACE, "foo", x = debug(pos.x), y = debug(pos.y));
+ let bar = tracing::span!(Level::TRACE, "bar", position = debug(pos));
+ foo.in_scope(|| {});
+ bar.in_scope(|| {});
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn float_values() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock().named("foo").with_field(
+ field::mock("x")
+ .with_value(&3.234)
+ .and(field::mock("y").with_value(&-1.223))
+ .only(),
+ ),
+ )
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let foo = tracing::span!(Level::TRACE, "foo", x = 3.234, y = -1.223);
+ foo.in_scope(|| {});
+ });
+
+ handle.assert_finished();
+}
+
+// TODO(#1138): determine a new syntax for uninitialized span fields, and
+// re-enable these.
+/*
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn add_field_after_new_span() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock()
+ .named("foo")
+ .with_field(field::mock("bar").with_value(&5)
+ .and(field::mock("baz").with_value).only()),
+ )
+ .record(
+ span::mock().named("foo"),
+ field::mock("baz").with_value(&true).only(),
+ )
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let span = tracing::span!(Level::TRACE, "foo", bar = 5, baz = false);
+ span.record("baz", &true);
+ span.in_scope(|| {})
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn add_fields_only_after_new_span() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(span::mock().named("foo"))
+ .record(
+ span::mock().named("foo"),
+ field::mock("bar").with_value(&5).only(),
+ )
+ .record(
+ span::mock().named("foo"),
+ field::mock("baz").with_value(&true).only(),
+ )
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let span = tracing::span!(Level::TRACE, "foo", bar = _, baz = _);
+ span.record("bar", &5);
+ span.record("baz", &true);
+ span.in_scope(|| {})
+ });
+
+ handle.assert_finished();
+}
+*/
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn record_new_value_for_field() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock().named("foo").with_field(
+ field::mock("bar")
+ .with_value(&5)
+ .and(field::mock("baz").with_value(&false))
+ .only(),
+ ),
+ )
+ .record(
+ span::mock().named("foo"),
+ field::mock("baz").with_value(&true).only(),
+ )
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let span = tracing::span!(Level::TRACE, "foo", bar = 5, baz = false);
+ span.record("baz", &true);
+ span.in_scope(|| {})
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn record_new_values_for_fields() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock().named("foo").with_field(
+ field::mock("bar")
+ .with_value(&4)
+ .and(field::mock("baz").with_value(&false))
+ .only(),
+ ),
+ )
+ .record(
+ span::mock().named("foo"),
+ field::mock("bar").with_value(&5).only(),
+ )
+ .record(
+ span::mock().named("foo"),
+ field::mock("baz").with_value(&true).only(),
+ )
+ .enter(span::mock().named("foo"))
+ .exit(span::mock().named("foo"))
+ .drop_span(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let span = tracing::span!(Level::TRACE, "foo", bar = 4, baz = false);
+ span.record("bar", &5);
+ span.record("baz", &true);
+ span.in_scope(|| {})
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn new_span_with_target_and_log_level() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock()
+ .named("foo")
+ .with_target("app_span")
+ .at_level(Level::DEBUG),
+ )
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ tracing::span!(target: "app_span", Level::DEBUG, "foo");
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn explicit_root_span_is_root() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(span::mock().named("foo").with_explicit_parent(None))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ tracing::span!(parent: None, Level::TRACE, "foo");
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn explicit_root_span_is_root_regardless_of_ctx() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(span::mock().named("foo"))
+ .enter(span::mock().named("foo"))
+ .new_span(span::mock().named("bar").with_explicit_parent(None))
+ .exit(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ tracing::span!(Level::TRACE, "foo").in_scope(|| {
+ tracing::span!(parent: None, Level::TRACE, "bar");
+ })
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn explicit_child() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(span::mock().named("foo"))
+ .new_span(span::mock().named("bar").with_explicit_parent(Some("foo")))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let foo = tracing::span!(Level::TRACE, "foo");
+ tracing::span!(parent: foo.id(), Level::TRACE, "bar");
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn explicit_child_at_levels() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(span::mock().named("foo"))
+ .new_span(span::mock().named("a").with_explicit_parent(Some("foo")))
+ .new_span(span::mock().named("b").with_explicit_parent(Some("foo")))
+ .new_span(span::mock().named("c").with_explicit_parent(Some("foo")))
+ .new_span(span::mock().named("d").with_explicit_parent(Some("foo")))
+ .new_span(span::mock().named("e").with_explicit_parent(Some("foo")))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let foo = tracing::span!(Level::TRACE, "foo");
+ tracing::trace_span!(parent: foo.id(), "a");
+ tracing::debug_span!(parent: foo.id(), "b");
+ tracing::info_span!(parent: foo.id(), "c");
+ tracing::warn_span!(parent: foo.id(), "d");
+ tracing::error_span!(parent: foo.id(), "e");
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn explicit_child_regardless_of_ctx() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(span::mock().named("foo"))
+ .new_span(span::mock().named("bar"))
+ .enter(span::mock().named("bar"))
+ .new_span(span::mock().named("baz").with_explicit_parent(Some("foo")))
+ .exit(span::mock().named("bar"))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ let foo = tracing::span!(Level::TRACE, "foo");
+ tracing::span!(Level::TRACE, "bar")
+ .in_scope(|| tracing::span!(parent: foo.id(), Level::TRACE, "baz"))
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn contextual_root() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(span::mock().named("foo").with_contextual_parent(None))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ tracing::span!(Level::TRACE, "foo");
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn contextual_child() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(span::mock().named("foo"))
+ .enter(span::mock().named("foo"))
+ .new_span(
+ span::mock()
+ .named("bar")
+ .with_contextual_parent(Some("foo")),
+ )
+ .exit(span::mock().named("foo"))
+ .done()
+ .run_with_handle();
+
+ with_default(subscriber, || {
+ tracing::span!(Level::TRACE, "foo").in_scope(|| {
+ tracing::span!(Level::TRACE, "bar");
+ })
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn display_shorthand() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock().named("my_span").with_field(
+ field::mock("my_field")
+ .with_value(&display("hello world"))
+ .only(),
+ ),
+ )
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ tracing::span!(Level::TRACE, "my_span", my_field = %"hello world");
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn debug_shorthand() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock().named("my_span").with_field(
+ field::mock("my_field")
+ .with_value(&debug("hello world"))
+ .only(),
+ ),
+ )
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ tracing::span!(Level::TRACE, "my_span", my_field = ?"hello world");
+ });
+
+ handle.assert_finished();
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+#[test]
+fn both_shorthands() {
+ let (subscriber, handle) = subscriber::mock()
+ .new_span(
+ span::mock().named("my_span").with_field(
+ field::mock("display_field")
+ .with_value(&display("hello world"))
+ .and(field::mock("debug_field").with_value(&debug("hello world")))
+ .only(),
+ ),
+ )
+ .done()
+ .run_with_handle();
+ with_default(subscriber, || {
+ tracing::span!(Level::TRACE, "my_span", display_field = %"hello world", debug_field = ?"hello world");
+ });
+
+ handle.assert_finished();
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 23:02:30 +0000