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| 1 | +# frozen_string_literal: true |
| 2 | + |
| 3 | +# Copyright (c) 2025 SolarWinds, LLC. |
| 4 | +# All rights reserved. |
| 5 | + |
| 6 | +# BUNDLE_GEMFILE=gemfiles/unit.gemfile bundle exec ruby -I test test/sampling/http_sampler_test.rb |
| 7 | + |
| 8 | +require 'minitest_helper' |
| 9 | +require 'opentelemetry-metrics-sdk' |
| 10 | +require 'opentelemetry-exporter-otlp-metrics' |
| 11 | +require './lib/solarwinds_apm/sampling' |
| 12 | + |
| 13 | +describe 'HttpSampler' do |
| 14 | + |
| 15 | + before do |
| 16 | + @config = { |
| 17 | + :collector => "https://#{ENV.fetch('SW_APM_COLLECTOR', 'apm.collector.cloud.solarwinds.com')}:443", |
| 18 | + :service => 'bbbbbbbb', |
| 19 | + :headers => "Bearer aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", |
| 20 | + :tracing_mode => true, |
| 21 | + :trigger_trace_enabled => true, |
| 22 | + :transaction_settings => true} |
| 23 | + end |
| 24 | + |
| 25 | + describe "valid service key" do |
| 26 | + before do |
| 27 | + new_config = @config.dup |
| 28 | + @sampler = SolarWindsAPM::HttpSampler.new(new_config) |
| 29 | + # otel.reset(trace: { sampler: @sampler }) |
| 30 | + @sampler.wait_until_ready(1000) |
| 31 | + end |
| 32 | + |
| 33 | + it "samples created spans" do |
| 34 | + tracer = ::OpenTelemetry.tracer_provider.tracer("test") |
| 35 | + tracer.in_span("test") do |span| |
| 36 | + assert span.recording?, "Expected span to be recording" |
| 37 | + end |
| 38 | + |
| 39 | + span = otel.spans.first |
| 40 | + refute_nil span, "Expected span to be present" |
| 41 | + assert_includes span.attributes.keys, "SampleRate" |
| 42 | + assert_includes span.attributes.keys, "SampleSource" |
| 43 | + assert_includes span.attributes.keys, "BucketCapacity" |
| 44 | + assert_includes span.attributes.keys, "BucketRate" |
| 45 | + end |
| 46 | + end |
| 47 | + |
| 48 | + describe "invalid service key" do |
| 49 | + before do |
| 50 | + new_config = @config.merge(headers: { "Authorization" => "Bearer oh-no" }) |
| 51 | + @sampler = SolarWindsAPM::HttpSampler.new(new_config) |
| 52 | + # otel.reset(trace: { sampler: @sampler }) |
| 53 | + @sampler.wait_until_ready(1000) |
| 54 | + end |
| 55 | + |
| 56 | + it "does not sample created spans" do |
| 57 | + tracer = ::OpenTelemetry.tracer_provider.tracer("test") |
| 58 | + tracer.in_span("test") do |span| |
| 59 | + refute span.recording?, "Expected span to not be recording" |
| 60 | + end |
| 61 | + |
| 62 | + spans = otel.spans |
| 63 | + assert_empty spans, "Expected no spans to be created" |
| 64 | + end |
| 65 | + end |
| 66 | + |
| 67 | + describe "invalid collector" do |
| 68 | + before do |
| 69 | + new_config = @config.merge(collector: URI("https://collector.invalid")) |
| 70 | + @sampler = SolarWindsAPM::HttpSampler.new(new_config) |
| 71 | + # otel.reset(trace: { sampler: @sampler }) |
| 72 | + @sampler.wait_until_ready(1000) |
| 73 | + end |
| 74 | + |
| 75 | + it "does not sample created spans" do |
| 76 | + tracer = ::OpenTelemetry.tracer_provider.tracer("test") |
| 77 | + tracer.in_span("test") do |span| |
| 78 | + refute span.recording?, "Expected span to not be recording" |
| 79 | + end |
| 80 | + |
| 81 | + spans = otel.spans |
| 82 | + assert_empty spans, "Expected no spans to be created" |
| 83 | + end |
| 84 | + |
| 85 | + it "retries with backoff" do |
| 86 | + sleep 1 # Simulating backoff delay |
| 87 | + end |
| 88 | + end |
| 89 | +end |
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