Implement serde test

opentelemetry-otlp/tests/integration_test/expected/serialized_traces.json

@@ -0,0 +1,133 @@
+{
+ "resourceSpans": [
+ {
+ "resource": {
+ "attributes": [
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "basic-otlp-tracing-example"
+ }
+ }
+ ],
+ "droppedAttributesCount": 0
+ },
+ "scopeSpans": [
+ {
+ "scope": {
+ "name": "ex.com/basic",
+ "version": "",
+ "attributes": [],
+ "droppedAttributesCount": 0
+ },
+ "spans": [
+ {
+ "traceId": "9b458af7378cba65253d7042d34fc72e",
+ "spanId": "cd7cf7bf939930b7",
+ "traceState": "",
+ "parentSpanId": "d58cf2d702a061e0",
+ "flags": 0,
+ "name": "Sub operation...",
+ "kind": 1,
+ "startTimeUnixNano": "1703985537070566698",
+ "endTimeUnixNano": "1703985537070572718",
+ "attributes": [
+ {
+ "key": "lemons",
+ "value": {
+ "stringValue": "five"
+ }
+ }
+ ],
+ "droppedAttributesCount": 0,
+ "events": [
+ {
+ "timeUnixNano": "1703985537070567697",
+ "name": "Sub span event",
+ "attributes": [],
+ "droppedAttributesCount": 0
+ }
+ ],
+ "droppedEventsCount": 0,
+ "links": [],
+ "droppedLinksCount": 0,
+ "status": {
+ "message": "",
+ "code": 0
+ }
+ }
+ ],
+ "schemaUrl": ""
+ }
+ ],
+ "schemaUrl": ""
+ },
+ {
+ "resource": {
+ "attributes": [
+ {
+ "key": "service.name",
+ "value": {
+ "stringValue": "basic-otlp-tracing-example"
+ }
+ }
+ ],
+ "droppedAttributesCount": 0
+ },
+ "scopeSpans": [
+ {
+ "scope": {
+ "name": "ex.com/basic",
+ "version": "",
+ "attributes": [],
+ "droppedAttributesCount": 0
+ },
+ "spans": [
+ {
+ "traceId": "9b458af7378cba65253d7042d34fc72e",
+ "spanId": "d58cf2d702a061e0",
+ "traceState": "",
+ "parentSpanId": "",
+ "flags": 0,
+ "name": "operation",
+ "kind": 1,
+ "startTimeUnixNano": "1703985537070558635",
+ "endTimeUnixNano": "1703985537070580454",
+ "attributes": [
+ {
+ "key": "ex.com/another",
+ "value": {
+ "stringValue": "yes"
+ }
+ }
+ ],
+ "droppedAttributesCount": 0,
+ "events": [
+ {
+ "timeUnixNano": "1703985537070563326",
+ "name": "Nice operation!",
+ "attributes": [
+ {
+ "key": "bogons",
+ "value": "100"
+ }
+ ],
+ "droppedAttributesCount": 0
+ }
+ ],
+ "droppedEventsCount": 0,
+ "links": [],
+ "droppedLinksCount": 0,
+ "status": {
+ "message": "",
+ "code": 0
+ }
+ }
+ ],
+ "schemaUrl": ""
+ }
+ ],
+ "schemaUrl": ""
+ }
+ ]
+}

opentelemetry-otlp/tests/integration_test/src/trace_asserter.rs

@@ -216,6 +216,6 @@ fn span_eq(left: &Span, right: &Span) -> bool {
 pub fn read_spans_from_json(file: File) -> Vec<ResourceSpans> {
  let reader = std::io::BufReader::new(file);
 
- let trace_data: TracesData = serde_json::from_reader(reader).unwrap();
+ let trace_data: TracesData = serde_json::from_reader(reader).expect("Failed to read json file");
  trace_data.resource_spans
 }

opentelemetry-otlp/tests/integration_test/tests/traces.rs

@@ -8,9 +8,11 @@ use opentelemetry::{
  trace::{TraceContextExt, Tracer},
  Key, KeyValue,
 };
+use opentelemetry_proto::tonic::trace::v1::TracesData;
 use opentelemetry_sdk::{runtime, trace as sdktrace, Resource};
 use std::error::Error;
 use std::fs::File;
+use std::io::Write;
 use std::os::unix::fs::MetadataExt;
 
 fn init_tracer_provider() -> Result<sdktrace::TracerProvider, TraceError> {
@@ -83,3 +85,18 @@ pub fn test_assert_span_eq() {
 
  TraceAsserter::new(spans.clone(), spans).assert();
 }
+
+#[test]
+pub fn test_serde() {
+ let spans = read_spans_from_json(File::open("./expected/traces.json").expect("Failed to read traces.json"));
+ let json = serde_json::to_string_pretty(&TracesData { resource_spans: spans }).expect("Failed to serialize spans to json");
+
+ // Write to file.
+ let mut file = File::create("./expected/serialized_traces.json").unwrap();
+ file.write_all(json.as_bytes()).unwrap();
+
+ let left = read_spans_from_json(File::open("./expected/traces.json").expect("Failed to read traces.json"));
+ let right = read_spans_from_json(File::open("./expected/serialized_traces.json").expect("Failed to read serialized_traces.json"));
+
+ TraceAsserter::new(left, right).assert();
+}