Class: DiffTest::ShouldRunDecider

Inherits:
Object
  • Object
show all
Defined in:
lib/diff_test/should_run_decider.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ShouldRunDecider

Returns a new instance of ShouldRunDecider.



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# File 'lib/diff_test/should_run_decider.rb', line 3

def initialize
  previous_compatible_test_executions = DiffTest::TestSuiteExecution.current.previous_compatible_test_executions
  @impacted_file_path_by_id = previous_compatible_test_executions['impacted_file_path_by_id']
  @test_suite_executions_by_id = previous_compatible_test_executions['test_suite_executions_by_id']
  @test_executions_by_test = previous_compatible_test_executions['test_executions_by_test']
end

Class Method Details

.current ⇒ Object 



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# File 'lib/diff_test/should_run_decider.rb', line 47

def self.current
  @current ||= DiffTest::ShouldRunDecider.new
end

.should_run?(test_id, system_test:) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/diff_test/should_run_decider.rb', line 51

def self.should_run?(test_id, system_test:)
  current.should_run?(test_id, system_test: system_test)
end

Instance Method Details

#should_run?(test_id, system_test:) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/diff_test/should_run_decider.rb', line 10

def should_run?(test_id, system_test:)
  return { should_run: true } unless @test_executions_by_test

  previous_test_executions = @test_executions_by_test[test_id] || []
  previous_runtime_ms = nil

  # If there are any previous test executions run whose impacted files are the same as now
  #  Assume its safe to skip
  has_previous_execution_with_no_impacted_changes = previous_test_executions.any? do |previous_test_execution|
    hashes_match = previous_test_execution['test_execution_impacted_files'].all? do |test_execution_impacted_file|
      impacted_file_id = test_execution_impacted_file['impacted_file_id'].to_s
      file_hash = test_execution_impacted_file['file_hash'].to_s
      impacted_file_path = @impacted_file_path_by_id[impacted_file_id]

      DiffTest::FileHashComputer.compute_relative(impacted_file_path) == file_hash
    end
    next false unless hashes_match

    previous_runtime_ms = previous_test_execution['runtime_ms']
    next true unless system_test

    test_suite_execution = @test_suite_executions_by_id[previous_test_execution['test_suite_execution_id'].to_s]
    next true if test_suite_execution['all_js_files_annotated']
    next true if test_suite_execution['js_version_hash'] == DiffTest::TestSuiteExecution.current.js_version_hash

    false
  end

  return { should_run: true } if ENV['DIFF_TEST_ALWAYS_RUN'] == '1'

  should_run =  !has_previous_execution_with_no_impacted_changes
  {
    should_run:,
    previous_runtime_ms:,
  }
end