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|
#![allow(missing_docs)]
use super::{field, metadata, Parent};
use std::fmt;
/// A mock span.
///
/// This is intended for use with the mock subscriber API in the
/// `subscriber` module.
#[derive(Clone, Debug, Default, Eq, PartialEq)]
pub struct MockSpan {
pub(in crate::support) metadata: metadata::Expect,
}
#[derive(Debug, Default, Eq, PartialEq)]
pub struct NewSpan {
pub(in crate::support) span: MockSpan,
pub(in crate::support) fields: field::Expect,
pub(in crate::support) parent: Option<Parent>,
}
pub fn mock() -> MockSpan {
MockSpan {
..Default::default()
}
}
impl MockSpan {
pub fn named<I>(self, name: I) -> Self
where
I: Into<String>,
{
Self {
metadata: metadata::Expect {
name: Some(name.into()),
..self.metadata
},
}
}
pub fn at_level(self, level: tracing::Level) -> Self {
Self {
metadata: metadata::Expect {
level: Some(level),
..self.metadata
},
}
}
pub fn with_target<I>(self, target: I) -> Self
where
I: Into<String>,
{
Self {
metadata: metadata::Expect {
target: Some(target.into()),
..self.metadata
},
}
}
pub fn with_explicit_parent(self, parent: Option<&str>) -> NewSpan {
let parent = match parent {
Some(name) => Parent::Explicit(name.into()),
None => Parent::ExplicitRoot,
};
NewSpan {
parent: Some(parent),
span: self,
..Default::default()
}
}
pub fn with_contextual_parent(self, parent: Option<&str>) -> NewSpan {
let parent = match parent {
Some(name) => Parent::Contextual(name.into()),
None => Parent::ContextualRoot,
};
NewSpan {
parent: Some(parent),
span: self,
..Default::default()
}
}
pub fn name(&self) -> Option<&str> {
self.metadata.name.as_ref().map(String::as_ref)
}
pub fn with_field<I>(self, fields: I) -> NewSpan
where
I: Into<field::Expect>,
{
NewSpan {
span: self,
fields: fields.into(),
..Default::default()
}
}
pub(in crate::support) fn check_metadata(&self, actual: &tracing::Metadata<'_>) {
self.metadata.check(actual, format_args!("span {}", self));
assert!(actual.is_span(), "expected a span but got {:?}", actual);
}
}
impl fmt::Display for MockSpan {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
if self.metadata.name.is_some() {
write!(f, "a span{}", self.metadata)
} else {
write!(f, "any span{}", self.metadata)
}
}
}
impl Into<NewSpan> for MockSpan {
fn into(self) -> NewSpan {
NewSpan {
span: self,
..Default::default()
}
}
}
impl NewSpan {
pub fn with_explicit_parent(self, parent: Option<&str>) -> NewSpan {
let parent = match parent {
Some(name) => Parent::Explicit(name.into()),
None => Parent::ExplicitRoot,
};
NewSpan {
parent: Some(parent),
..self
}
}
pub fn with_contextual_parent(self, parent: Option<&str>) -> NewSpan {
let parent = match parent {
Some(name) => Parent::Contextual(name.into()),
None => Parent::ContextualRoot,
};
NewSpan {
parent: Some(parent),
..self
}
}
pub fn with_field<I>(self, fields: I) -> NewSpan
where
I: Into<field::Expect>,
{
NewSpan {
fields: fields.into(),
..self
}
}
}
impl fmt::Display for NewSpan {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "a new span{}", self.span.metadata)?;
if !self.fields.is_empty() {
write!(f, " with {}", self.fields)?;
}
Ok(())
}
}
|
