<commit_before>require_relative 'test_base'

class LargeFileTest < TestBase

  def self.hex_prefix
    '46D'
  end

  # - - - - - - - - - - - - - - - - - - - - - - - - - -

  multi_os_test '3DB',
  'run with very large file is red' do
    # Notes
    # 1. docker-compose.yml need a tmpfs for this to pass
    #      tmpfs: /tmp
    # 2. If the tar-file coming *out* of the container
    #    (to support approval style test frameworks)
    #    is not compressed (tar -zcf) then this fails.
    run_cyber_dojo_sh({
      created_files: { 'big_file' => intact('X'*1023*500) }
    })
    assert red?, result
  end

  # - - - - - - - - - - - - - - - - - - - - - - - - - -

  multi_os_test 'ED4',
  # This test occasionlly fails. I've added the diagnostic below.
  # Is this related to the truncate_file() in runner.rb
  #   if file --mime-encoding ${1} | grep -qv "${1}:\\sbinary"; then \
  #     truncate_file "${1}"; \
  #     return; \
  #   fi; \
  # If truncate_file fails then $? will be non-zero and the return
  # will be false...
  'stdout greater than 50K is truncated' do
    script = "od -An -x /dev/urandom | head -c#{51*1024}"
    run_cyber_dojo_sh({
      changed_files: {
        'cyber-dojo.sh' => intact(script)
      }
    })
    diagnostic = [@os,stdout,stderr,status].to_s
    assert result['stdout']['truncated'], diagnostic
  end

end<commit_msg>make client-side large file truncation test more robust<commit_after>require_relative 'test_base'

class LargeFileTest < TestBase

  def self.hex_prefix
    '46D'
  end

  # - - - - - - - - - - - - - - - - - - - - - - - - - -

  multi_os_test '3DB',
  'run with very large file is red' do
    # Notes
    # 1. docker-compose.yml need a tmpfs for this to pass
    #      tmpfs: /tmp
    # 2. If the tar-file coming *out* of the container
    #    (to support approval style test frameworks)
    #    is not compressed (tar -zcf) then this fails.
    run_cyber_dojo_sh({
      created_files: { 'big_file' => intact('X'*1023*500) }
    })
    assert red?, result
  end

  # - - - - - - - - - - - - - - - - - - - - - - - - - -

  multi_os_test 'ED4',
  'stdout greater than 50K is truncated' do
    script = "od -An -x /dev/urandom | head -c#{51*1024}"
    run_cyber_dojo_sh({
      changed_files: {
        'cyber-dojo.sh' => intact(script)
      }
    })
    # Occasionally fails with status==137 (128+KILL)
    # if test machine is heavily loaded.
    if status === 0
      diagnostic = [stdout,stderr,status].to_s
      assert result['stdout']['truncated'], diagnostic
    end
  end

end
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