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opentelemetry-tracing.ts
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opentelemetry-tracing.ts
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/*!
* Copyright 2020 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import * as assert from 'assert';
import {describe, it, before, beforeEach, afterEach} from 'mocha';
import * as api from '@opentelemetry/api';
import * as trace from '@opentelemetry/tracing';
import {OpenTelemetryTracer} from '../src/opentelemetry-tracing';
import {SimpleSpanProcessor} from '@opentelemetry/tracing';
describe('OpenTelemetryTracer', () => {
let tracing: OpenTelemetryTracer;
let span: trace.Span;
const spanName = 'test-span';
const spanContext: api.SpanContext = {
traceId: 'd4cda95b652f4a1592b449d5929fda1b',
spanId: '6e0c63257de34c92',
traceFlags: api.TraceFlags.SAMPLED,
};
const spanAttributes: api.SpanAttributes = {
foo: 'bar',
};
before(() => {
const provider = new trace.BasicTracerProvider();
const exporter = new trace.InMemorySpanExporter();
provider.addSpanProcessor(new SimpleSpanProcessor(exporter));
api.trace.setGlobalTracerProvider(provider);
});
beforeEach(() => {
tracing = new OpenTelemetryTracer();
});
afterEach(() => {
span.end();
});
it('creates a span', () => {
span = tracing.createSpan(
spanName,
spanAttributes,
spanContext
) as trace.Span;
assert.strictEqual(span.name, spanName);
assert.deepStrictEqual(span.attributes, spanAttributes);
assert.strictEqual(span.parentSpanId, spanContext.spanId);
});
});