100 lines
4.1 KiB
TypeScript
100 lines
4.1 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 * as assert from 'assert';
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import {
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AlwaysOffSampler,
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AlwaysOnSampler,
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ParentBasedSampler,
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TraceIdRatioBasedSampler,
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} from '../../src';
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import { buildSamplerFromEnv } from '../../src/config';
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describe('config', () => {
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describe('buildSamplerFromEnv()', () => {
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afterEach(() => {
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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 handle always_on case', () => {
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process.env.OTEL_TRACES_SAMPLER = 'always_on';
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assert.ok(buildSamplerFromEnv() instanceof AlwaysOnSampler);
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assert.strictEqual(buildSamplerFromEnv().toString(), 'AlwaysOnSampler');
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});
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it('should handle always_off case', () => {
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process.env.OTEL_TRACES_SAMPLER = 'always_off';
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assert.ok(buildSamplerFromEnv() instanceof AlwaysOffSampler);
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assert.strictEqual(buildSamplerFromEnv().toString(), 'AlwaysOffSampler');
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});
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it('should handle traceidratio case', () => {
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process.env.OTEL_TRACES_SAMPLER = 'traceidratio';
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process.env.OTEL_TRACES_SAMPLER_ARG = '0.1';
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assert.ok(buildSamplerFromEnv() instanceof TraceIdRatioBasedSampler);
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assert.strictEqual(
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buildSamplerFromEnv().toString(),
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'TraceIdRatioBased{0.1}'
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);
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});
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it('should handle parentbased_always_on case', () => {
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process.env.OTEL_TRACES_SAMPLER = 'parentbased_always_on';
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assert.ok(buildSamplerFromEnv() instanceof ParentBasedSampler);
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assert.strictEqual(
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buildSamplerFromEnv().toString(),
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'ParentBased{root=AlwaysOnSampler, remoteParentSampled=AlwaysOnSampler, remoteParentNotSampled=AlwaysOffSampler, localParentSampled=AlwaysOnSampler, localParentNotSampled=AlwaysOffSampler}'
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);
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});
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it('should handle parentbased_always_off case', () => {
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process.env.OTEL_TRACES_SAMPLER = 'parentbased_always_off';
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assert.ok(buildSamplerFromEnv() instanceof ParentBasedSampler);
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assert.strictEqual(
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buildSamplerFromEnv().toString(),
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'ParentBased{root=AlwaysOffSampler, remoteParentSampled=AlwaysOnSampler, remoteParentNotSampled=AlwaysOffSampler, localParentSampled=AlwaysOnSampler, localParentNotSampled=AlwaysOffSampler}'
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);
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});
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it('should handle parentbased_traceidratio case', () => {
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process.env.OTEL_TRACES_SAMPLER = 'parentbased_traceidratio';
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process.env.OTEL_TRACES_SAMPLER_ARG = '0.2';
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assert.ok(buildSamplerFromEnv() instanceof ParentBasedSampler);
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assert.strictEqual(
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buildSamplerFromEnv().toString(),
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'ParentBased{root=TraceIdRatioBased{0.2}, remoteParentSampled=AlwaysOnSampler, remoteParentNotSampled=AlwaysOffSampler, localParentSampled=AlwaysOnSampler, localParentNotSampled=AlwaysOffSampler}'
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);
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});
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it('should handle default case with probability 1', () => {
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assert.ok(buildSamplerFromEnv() instanceof ParentBasedSampler);
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assert.strictEqual(
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buildSamplerFromEnv().toString(),
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'ParentBased{root=AlwaysOnSampler, remoteParentSampled=AlwaysOnSampler, remoteParentNotSampled=AlwaysOffSampler, localParentSampled=AlwaysOnSampler, localParentNotSampled=AlwaysOffSampler}'
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);
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});
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it('should handle default case with probability lower than 1', () => {
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assert.ok(buildSamplerFromEnv() instanceof ParentBasedSampler);
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assert.strictEqual(
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buildSamplerFromEnv().toString(),
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'ParentBased{root=AlwaysOnSampler, remoteParentSampled=AlwaysOnSampler, remoteParentNotSampled=AlwaysOffSampler, localParentSampled=AlwaysOnSampler, localParentNotSampled=AlwaysOffSampler}'
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);
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});
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});
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});
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