81 lines
2.8 KiB
TypeScript
81 lines
2.8 KiB
TypeScript
/*
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* Copyright The OpenTelemetry Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { context, TraceFlags } from '@opentelemetry/api';
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import * as assert from 'assert';
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import { BasicTracerProvider } from '../../src';
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import { TestStackContextManager } from '../common/export/TestStackContextManager';
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import { Tracer } from '../../src/Tracer';
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describe('Tracer', () => {
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const tracerProvider = new BasicTracerProvider();
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beforeEach(() => {
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const contextManager = new TestStackContextManager().enable();
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context.setGlobalContextManager(contextManager);
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});
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afterEach(() => {
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context.disable();
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delete process.env.OTEL_TRACES_SAMPLER;
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delete process.env.OTEL_TRACES_SAMPLER_ARG;
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});
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it('should sample a trace when OTEL_TRACES_SAMPLER_ARG is unset', () => {
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process.env.OTEL_TRACES_SAMPLER = 'traceidratio';
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process.env.OTEL_TRACES_SAMPLER_ARG = '';
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const tracer = new Tracer(
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{ name: 'default', version: '0.0.1' },
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{},
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tracerProvider['_resource'],
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tracerProvider['_activeSpanProcessor']
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);
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const span = tracer.startSpan('my-span');
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const context = span.spanContext();
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assert.strictEqual(context.traceFlags, TraceFlags.SAMPLED);
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span.end();
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});
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it('should not sample a trace when OTEL_TRACES_SAMPLER_ARG is out of range', () => {
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process.env.OTEL_TRACES_SAMPLER = 'traceidratio';
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process.env.OTEL_TRACES_SAMPLER_ARG = '2';
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const tracer = new Tracer(
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{ name: 'default', version: '0.0.1' },
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{},
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tracerProvider['_resource'],
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tracerProvider['_activeSpanProcessor']
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);
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const span = tracer.startSpan('my-span');
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const context = span.spanContext();
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assert.strictEqual(context.traceFlags, TraceFlags.SAMPLED);
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span.end();
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});
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it('should not sample a trace when OTEL_TRACES_SAMPLER_ARG is 0', () => {
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process.env.OTEL_TRACES_SAMPLER = 'traceidratio';
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process.env.OTEL_TRACES_SAMPLER_ARG = '0';
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const tracer = new Tracer(
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{ name: 'default', version: '0.0.1' },
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{},
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tracerProvider['_resource'],
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tracerProvider['_activeSpanProcessor']
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);
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const span = tracer.startSpan('my-span');
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const context = span.spanContext();
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assert.strictEqual(context.traceFlags, TraceFlags.NONE);
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span.end();
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});
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});
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