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fix(opentelemetry-instrumentation-document-load): updated instrumenta… #1075

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fix(opentelemetry-instrumentation-document-load): updated instrumenta… #1075

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15 changes: 11 additions & 4 deletions plugins/web/opentelemetry-instrumentation-document-load/src/instrumentation.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -112,7 +112,7 @@ export class DocumentLoadInstrumentation extends InstrumentationBase<unknown> {
if (fetchSpan) {
context.with(trace.setSpan(context.active(), fetchSpan), () => {
addSpanNetworkEvents(fetchSpan, entries);
this._endSpan(fetchSpan, PTN.RESPONSE_END, entries);
this._endSpan(fetchSpan, PTN.RESPONSE_END, PTN.FETCH_START, entries);
});
}
});
Expand Down Expand Up @@ -141,25 +141,32 @@ export class DocumentLoadInstrumentation extends InstrumentationBase<unknown> {

addSpanPerformancePaintEvents(rootSpan);

this._endSpan(rootSpan, PTN.LOAD_EVENT_END, entries);
this._endSpan(rootSpan, PTN.LOAD_EVENT_END, PTN.FETCH_START, entries);
});
}

/**
* Helper function for ending span
* @param span
* @param performanceName name of performance entry for time end
* @param startPerformanceName name of the performance entry that has the time start.
* @param entries
*/
private _endSpan(
span: Span | undefined,
performanceName: string,
startPerformanceName: string,
entries: PerformanceEntries
) {
// span can be undefined when entries are missing the certain performance - the span will not be created
if (span) {
if (hasKey(entries, performanceName)) {
span.end(entries[performanceName]);
// @ts-ignore: Object is possibly 'null'.
if(hasKey(entries, startPerformanceName) && entries[startPerformanceName] > entries[performanceName]) {
span.end(entries[startPerformanceName]);
} else {
span.end(entries[performanceName]);
}
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I could not seem to access the span end timestamp here which is why I'm passing the original start value to check against.

} else {
// just end span
span.end();
Expand All @@ -185,7 +192,7 @@ export class DocumentLoadInstrumentation extends InstrumentationBase<unknown> {
if (span) {
span.setAttribute(SemanticAttributes.HTTP_URL, resource.name);
addSpanNetworkEvents(span, resource);
this._endSpan(span, PTN.RESPONSE_END, resource);
this._endSpan(span, PTN.RESPONSE_END, PTN.FETCH_START, resource);
}
}

Expand Down
49 changes: 49 additions & 0 deletions plugins/web/opentelemetry-instrumentation-document-load/test/documentLoad.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -124,6 +124,32 @@ const resourcesNoSecureConnectionStart = [
serverTiming: [],
},
];
const resourcesFetchAfterEnd = [
{
name: 'http://localhost:8090/bundle.js',
entryType: 'resource',
startTime: 20.985000010114163,
duration: 90.94999998342246,
initiatorType: 'script',
nextHopProtocol: 'http/1.1',
workerStart: 0,
redirectStart: 0,
redirectEnd: 0,
fetchStart: 120.985000010114163,
domainLookupStart: 20.985000010114163,
domainLookupEnd: 20.985000010114163,
connectStart: 20.985000010114163,
connectEnd: 20.985000010114163,
secureConnectionStart: 0,
requestStart: 29.28999997675419,
responseStart: 31.88999998383224,
responseEnd: 32.93499999353662,
transferSize: 1446645,
encodedBodySize: 1446396,
decodedBodySize: 1446396,
serverTiming: [],
},
];
const entries = {
name: 'http://localhost:8090/',
entryType: 'navigation',
Expand Down Expand Up @@ -321,6 +347,29 @@ describe('DocumentLoad Instrumentation', () => {
});
});

describe('when navigation entries have bad timings', () => {
let spyEntries: sinon.SinonStub;
beforeEach(() => {
spyEntries = sandbox.stub(window.performance, 'getEntriesByType');
spyEntries.withArgs('navigation').returns([entries]);
spyEntries.withArgs('resource').returns(resourcesFetchAfterEnd);
spyEntries.withArgs('paint').returns(paintEntries);
});
afterEach(() => {
spyEntries.restore();
});

it('should never have negative duration', done => {
plugin.enable();

setTimeout(() => {
const fetchSpan = exporter.getFinishedSpans()[1] as ReadableSpan;
assert.deepEqual(fetchSpan.duration, [0,0]);
done();
});
});
});

describe('when navigation entries types are available', () => {
let spyEntries: sinon.SinonStub;
beforeEach(() => {
Expand Down