Module: Datadog::CI::Contrib::Minitest::RunMethodCapture

Defined in:
lib/datadog/ci/contrib/minitest/run_method_capture.rb

Overview

Captures the concrete Minitest::Test#run implementation below Datadog.

This exists because ci-queue loads minitest-reporters, and minitest-reporters aliases the current Minitest::Test#run as run_without_hooks before replacing it with its own wrapper. If Datadog has already prepended its run method, that alias points back to Datadog and re-enters the same active test span.

Auto-instrumentation makes this trickier: it patches from a script_compiled TracePoint, so it can observe Minitest::Test while ‘require “minitest”` is still evaluating the class body. In that window Minitest::Test exists, but its concrete #run has not been defined yet, so instance_method(:run) resolves to the abstract Minitest::Runnable#run. The one-shot method_added path below replaces that early abstract capture with the concrete Minitest::Test#run, before later plugin wrappers like minitest-reporters can alias Datadog’s wrapper.

Class Method Summary collapse

Class Method Details

.capture_concrete_pre_datadog_run!(storage, owner, datadog_run_owner) ⇒ Object 



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# File 'lib/datadog/ci/contrib/minitest/run_method_capture.rb', line 23

def capture_concrete_pre_datadog_run!(storage, owner, datadog_run_owner)
  saved_run = storage._dd_pre_datadog_minitest_run
  return if concrete_pre_datadog_run?(saved_run, datadog_run_owner)
  return if !defined?(::Minitest::Test) || !owner.equal?(::Minitest::Test)

  datadog_run = owner.instance_method(:run)
  return unless datadog_run.owner == datadog_run_owner

  candidate_run = datadog_run.super_method
  if concrete_pre_datadog_run?(candidate_run, datadog_run_owner)
    storage._dd_pre_datadog_minitest_run = candidate_run
  end
end

.concrete_pre_datadog_run?(method, datadog_run_owner) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/datadog/ci/contrib/minitest/run_method_capture.rb', line 37

def concrete_pre_datadog_run?(method, datadog_run_owner)
  method &&
    method.owner != datadog_run_owner &&
    (!defined?(::Minitest::Runnable) || method.owner != ::Minitest::Runnable)
end