tests

[Tests]
  issues = '#1927'
  design = 'syntax/Outputs/index.md outputs/CSV.md'
  [steady]
    type = CSVDiff
    input = 'csv.i'
    csvdiff = 'csv_out.csv'

    requirement = "The system shall support the output of postprocessors and scalars to CSV files "
                  "for steady state problems."
  []
  [transient]
    type = CSVDiff
    input = 'csv_transient.i'
    csvdiff = 'csv_transient_out.csv'
    # The SumNodalValuesAux postprocessor currently is unreliable at
    # high processor counts; see
    # https://github.com/idaholab/moose/issues/9026
    max_parallel = 1

    requirement = "The system shall support the output of postprocessors and scalars to CSV files "
                  "for transient propblems."
  []
  [no_time]
    type = CSVDiff
    input = 'csv_no_time.i'
    csvdiff = 'csv_no_time_out.csv'
    # SumNodalValuesAux is unreliable at high processor counts
    max_parallel = 1

    requirement = "The system shall support the output of postprocessors and scalars to CSV files "
                  "for transient problems without a time column."
  []
  [transient_exodus]
    type = Exodiff
    input = 'csv_transient.i'
    exodiff = 'csv_transient_out.e'
    cli_args = 'Outputs/csv=false Outputs/exodus=true'
    prereq = transient
    max_parallel = 1

    requirement = "The system shall support the output of postprocessors and scalars to Exodus files "
                  "for transient problems."
  []
  [restart]
    requirement = "The system shall support the output of CSV data:"
    [restart_part1]
      type = CSVDiff
      input = csv_restart_part1.i
      csvdiff = 'csv_restart_part1_out.csv'
      detail = "with checkpoint enabled and"
    []
    [restart_part2]
      type = CSVDiff
      input = csv_restart_part2.i
      csvdiff = 'csv_restart_part2_out.csv'
      prereq = 'restart/restart_part1'
      detail = "when restarted creates a new output file or"
    []
    [restart_part2_append]
      type = CSVDiff
      input = csv_restart_part2.i
      csvdiff = 'csv_restart_part2_append_out.csv'
      prereq = 'restart/restart_part2'
      cli_args = 'Outputs/csv/file_base=csv_restart_part2_append_out Outputs/csv/append_restart=true'

      detail = "optionally appends the existing file from the first part."
    []
  []

  [align]
    # Test the alignment, delimiter, and precision settings
    type = CSVDiff
    input = csv_align.i
    csvdiff = 'csv_align_out.csv'

    requirement = "The system shall support CSV output aligned columns and a custom delimiter."
    issues = "#3229"
  []
  [sort]
    # Tests that csv output can be sorted
    type = CheckFiles
    input = 'csv_sort.i'
    check_files = csv_sort_out.csv
    file_expect_out = "time,aux0_0,aux0_1,aux1,aux2,num_aux,num_vars"

    requirement = "The system shall support CSV output to the console that is sorted by the variable "
                  "name."
    issues = "#8974"
  []
  [csv_transient_vpp_linear]
    type = CheckFiles
    input = 'csv_transient_vpp.i'
    check_files = 'csv_transient_vpp_out_nodes_0003_0002_0001.csv'
    file_expect_out = 'id,u,x,y,z'
    requirement = "The system shall support CSV output to files on linear iterations, generating unique filenames containing the time step, current nonlinear and linear iteration numbers."
    issues = "#24705"
  []
  [csv_transient_vpp_nonlinear]
    type = CheckFiles
    input = 'csv_transient_vpp.i'
    check_files = 'csv_transient_vpp_out_nodes_0002_0001.csv'
    file_expect_out = 'id,u,x,y,z'
    cli_args = 'Outputs/out/execute_on=NONLINEAR'
    requirement = "The system shall support CSV output to files on nonlinear iterations, generating unique filenames containing the time step and current nonlinear iteration number."
    issues = "#24705"
  []
  [pp_scalar_execute_on_mismatch]
    type = RunException
    input = 'csv.i'
    cli_args = 'Outputs/csv/execute_postprocessors_on=FINAL'
    expect_err = "The parameters 'execute_postprocessors_on', 'execute_scalars_on', and 'execute_reporters_on' must be the same for CSV output"
    requirement = "The system shall report an error if post-processors and scalar variables have different CSV output frequency."
    issues = "#25211"
  []
  [pp_reporter_execute_on_mismatch]
    type = RunException
    input = 'csv.i'
    cli_args = "
      Reporters/reporter/type=ConstantReporter
      Reporters/reporter/integer_names='value1'
      Reporters/reporter/integer_values='5'
      Outputs/csv/execute_scalars_on='NONE'
      Outputs/csv/execute_reporters_on='FINAL'"
    expect_err = "The parameters 'execute_postprocessors_on', 'execute_scalars_on', and 'execute_reporters_on' must be the same for CSV output"
    requirement = "The system shall report an error if post-processors and reporters have different CSV output frequency."
    issues = "#25211"
  []
[]