Merge pull request #4544 from DataDog/repro-core-loading

APMS-15322 Reproducer for loading core only and configuring the library

Author: vpellan

lib/datadog/tracing/component.rb

@@ -6,6 +6,7 @@
 require_relative 'sampling/span/rule_parser'
 require_relative 'sampling/span/sampler'
 require_relative 'diagnostics/environment_logger'
+require_relative 'contrib/component'
 
 module Datadog
   module Tracing

spec/loading_spec.rb

@@ -38,3 +38,25 @@
     end
   end
 end
+
+RSpec.describe 'load core only and configure library' do
+  let(:code) do
+    <<-E
+      if defined?(Datadog)
+        unless Datadog.constants == [:VERSION]
+          exit 1
+        end
+      end
+
+      require 'datadog/core'
+
+      Datadog.configure do
+      end
+    E
+  end
+
+  it 'configures successfully' do
+    rv = system("ruby -e #{Shellwords.shellescape(code)}")
+    expect(rv).to be true
+  end
+end