Struct CapturingExporter 

pub struct CapturingExporter {
    pub spans: Mutex<Vec<SpanData>>,
}

Captures spans in memory instead of exporting them. Use in unit tests via setup_with_exporter to prove that a span was actually recorded, not just that its getters return the right values.

use rust_web_server::otel::{self, CapturingExporter, TracingConfig, ExporterConfig};
use std::sync::Arc;

let captured = Arc::new(CapturingExporter::new());
otel::setup_with_exporter(
    TracingConfig { exporter: ExporterConfig::Discard, ..Default::default() },
    Box::new(captured.clone()),
);

otel::span("db.query").end();
otel::flush();
assert_eq!(1, captured.take().len());

Fields

spans: Mutex<Vec<SpanData>>

Implementations

impl CapturingExporter

pub fn new() -> Self

pub fn take(&self) -> Vec<SpanData>

Trait Implementations

impl Default for CapturingExporter

fn default() -> Self

Returns the “default value” for a type.

impl Exporter for CapturingExporter

fn export(&self, spans: &[SpanData])

fn shutdown(&self)