Class: Datadog::CI::ImpactedTestsDetection::Component

Inherits:
Object
  • Object
show all
Defined in:
lib/datadog/ci/impacted_tests_detection/component.rb

Instance Method Summary collapse

Constructor Details

#initialize(enabled:) ⇒ Component

Returns a new instance of Component.



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# File 'lib/datadog/ci/impacted_tests_detection/component.rb', line 10

def initialize(enabled:)
  @enabled = enabled
  @git_diff = Git::Diff.new
end

Instance Method Details

#configure(library_settings, test_session) ⇒ Object 



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# File 'lib/datadog/ci/impacted_tests_detection/component.rb', line 15

def configure(library_settings, test_session)
  @enabled &&= library_settings.impacted_tests_enabled?

  return unless @enabled

  # we must unshallow the repository before trying to find base_commit_sha or executing `git diff` command
  git_tree_upload_worker.wait_until_done

  base_commit_sha = test_session.base_commit_sha || Git::LocalRepository.base_commit_sha
  if base_commit_sha.nil?
    Datadog.logger.debug { "Impacted tests detection disabled: base commit not found" }
    @enabled = false
    return
  end

  git_diff = Git::LocalRepository.get_changes_since(base_commit_sha)
  if git_diff.empty?
    Datadog.logger.debug { "Impacted tests detection disabled: could not get changed files" }
    @enabled = false
    return
  end

  Datadog.logger.debug do
    "Impacted tests detection: found #{git_diff.size} changed files"
  end
  Datadog.logger.debug do
    "Impacted tests detection: changed files: #{git_diff.inspect}"
  end

  @git_diff = git_diff
  @enabled = true
end

#enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/datadog/ci/impacted_tests_detection/component.rb', line 48

def enabled?
  @enabled
end

#modified?(test_span) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/datadog/ci/impacted_tests_detection/component.rb', line 52

def modified?(test_span)
  return false unless enabled?

  source_file = test_span.source_file
  return false if source_file.nil?

  # convert to relative path without leading slash
  # @type var source_file: String
  source_file = source_file[1..] if source_file.start_with?("/")

  result = @git_diff.lines_changed?(source_file, start_line: test_span.start_line, end_line: test_span.end_line)
  Datadog.logger.debug do
    "Impacted tests detection: test #{test_span.name} with source file #{source_file} is modified: #{result}"
  end
  result
end

#tag_modified_test(test_span) ⇒ Object 



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# File 'lib/datadog/ci/impacted_tests_detection/component.rb', line 69

def tag_modified_test(test_span)
  return unless modified?(test_span)

  Datadog.logger.debug do
    "Impacted tests detection: test #{test_span.name} with source file #{test_span.source_file} is modified"
  end

  test_span.set_tag(Ext::Test::TAG_TEST_IS_MODIFIED, "true")
end