API endpoint configurable with BUILDKITE_ANALYTICS_ENDPOINT

Useful for testing.

Author: pda

lib/buildkite/test_collector.rb

@@ -48,7 +48,7 @@ def self.configure(hook:, token: nil, url: nil, tracing_enabled: true, artifact_
       end
 
       self.api_token = (token || ENV["BUILDKITE_ANALYTICS_TOKEN"])&.strip
-      self.url = url || DEFAULT_URL
+      self.url = url || ENV["BUILDKITE_ANALYTICS_ENDPOINT"] || DEFAULT_URL
       self.tracing_enabled = tracing_enabled
       self.artifact_path = artifact_path
       self.env = env

spec/test_collector/tracer_spec.rb

@@ -140,6 +140,7 @@
       let(:min_duration) { 2.0 }
       before do
         fake_env("BUILDKITE_ANALYTICS_TOKEN", "token")
+        fake_env("BUILDKITE_ANALYTICS_ENDPOINT", nil)
         fake_env("BUILDKITE_ANALYTICS_TRACE_MIN_MS", (min_duration * 1000).to_s)
         Buildkite::TestCollector.configure(hook: :minitest)
       end