Class: Evilution::Runner::MutationExecutor::Neutralizer::InfraError

Inherits:
Object
  • Object
show all
Defined in:
lib/evilution/runner/mutation_executor/neutralizer/infra_error.rb

Overview

Reclassify results as :neutral when the failure was caused by test infrastructure rather than by the mutation. Two independent paths:

1) :error from a missing require / spec_helper / rails_helper / spec/support

initialization — detected by error_class ∈ INFRA_ERROR_CLASSES and
first backtrace frame matching INFRA_BACKTRACE_PATHS. Origin-only match
(not `any?`): Ruby backtraces typically carry spec_helper frames below
mutation-caused errors, so matching any frame would misclassify real
mutation NameError/LoadError as :neutral.

2) :killed from a CrashDetector test_crashed whose sole crash class is in

INFRA_CRASH_CLASSES (ActiveRecord::StatementTimeout, Timeout::Error,
etc.). These surface under parallel workers sharing a DB file or on a
slow CI; fork.rb initially reports them as :killed, and without this
demotion the kill count inflates with infra noise. No backtrace check:
the single-class signal from CrashDetector already rules out mixed
mutation-caused failures. See EV-toid / GH #814.

Instance Method Summary collapse

Instance Method Details

#call(result, **_ctx) ⇒ Object 



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# File 'lib/evilution/runner/mutation_executor/neutralizer/infra_error.rb', line 39

def call(result, **_ctx)
  return neutralize(result) if infra_crash?(result)
  return result unless result.error?
  return result unless INFRA_ERROR_CLASSES.include?(result.error_class)
  return result unless infra_origin?(result.error_backtrace)

  neutralize(result)
end