(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [
        (assign_pair
          lhs: (LhsName name:test_description)
          op: Equal
          rhs: {(SQ <"Tests git rev-list --topo-order functionality">)}
          spids: [13]
        )
      ]
      spids: [13]
    )
    (C {(.)} {(./test-lib.sh)})
    (C {(.)} {(DQ ($ VSub_Name "$TEST_DIRECTORY")) (/lib-t6000.sh)})
    (FuncDef
      name: list_duplicates
      body: 
        (BraceGroup
          children: [
            (Pipeline
              children: [(C {(DQ ($ VSub_At "$@"))}) (C {(sort)}) (C {(uniq)} {(-d)})]
              negated: False
            )
          ]
          spids: [38]
        )
      spids: [34 37]
    )
    (SimpleCommand
      words: [{(date)}]
      redirects: [(Redir op_id:Redir_Great fd:-1 arg_word:{(path0)} spids:[60])]
    )
    (C {(git)} {(update-index)} {(--add)} {(path0)})
    (C {(save_tag)} {(tree)} {(git)} {(write-tree)})
    (C {(on_dates)} {(DQ ("00:00"))} {(DQ ("00:00"))} {(hide_error)} {(save_tag)} {(root)} {(unique_commit)} 
      {(root)} {(tree)}
    )
    (C {(on_dates)} {(DQ ("00:01"))} {(DQ ("00:01"))} {(save_tag)} {(l0)} {(unique_commit)} {(l0)} {(tree)} 
      {(-p)} {(root)}
    )
    (C {(on_dates)} {(DQ ("00:02"))} {(DQ ("00:02"))} {(save_tag)} {(l1)} {(unique_commit)} {(l1)} {(tree)} 
      {(-p)} {(l0)}
    )
    (C {(on_dates)} {(DQ ("00:03"))} {(DQ ("00:03"))} {(save_tag)} {(l2)} {(unique_commit)} {(l2)} {(tree)} 
      {(-p)} {(l1)}
    )
    (C {(on_dates)} {(DQ ("00:04"))} {(DQ ("00:04"))} {(save_tag)} {(a0)} {(unique_commit)} {(a0)} {(tree)} 
      {(-p)} {(l2)}
    )
    (C {(on_dates)} {(DQ ("00:05"))} {(DQ ("00:05"))} {(save_tag)} {(a1)} {(unique_commit)} {(a1)} {(tree)} 
      {(-p)} {(a0)}
    )
    (C {(on_dates)} {(DQ ("00:06"))} {(DQ ("00:06"))} {(save_tag)} {(b1)} {(unique_commit)} {(b1)} {(tree)} 
      {(-p)} {(a0)}
    )
    (C {(on_dates)} {(DQ ("00:07"))} {(DQ ("00:07"))} {(save_tag)} {(c1)} {(unique_commit)} {(c1)} {(tree)} 
      {(-p)} {(b1)}
    )
    (C {(on_dates)} {(DQ ("00:08"))} {(DQ ("00:08"))} {(as_author)} 
      {(foobar) (Lit_Other "@") (example.com)} {(save_tag)} {(b2)} {(unique_commit)} {(b2)} {(tree)} {(-p)} {(b1)}
    )
    (C {(on_dates)} {(DQ ("00:09"))} {(DQ ("00:09"))} {(save_tag)} {(b3)} {(unique_commit)} {(b3)} {(tree)} 
      {(-p)} {(b2)}
    )
    (C {(on_dates)} {(DQ ("00:10"))} {(DQ ("00:10"))} {(save_tag)} {(c2)} {(unique_commit)} {(c2)} {(tree)} 
      {(-p)} {(c1)} {(-p)} {(b2)}
    )
    (C {(on_dates)} {(DQ ("00:11"))} {(DQ ("00:11"))} {(save_tag)} {(c3)} {(unique_commit)} {(c3)} {(tree)} 
      {(-p)} {(c2)}
    )
    (C {(on_dates)} {(DQ ("00:12"))} {(DQ ("00:00"))} {(save_tag)} {(a2)} {(unique_commit)} {(a2)} {(tree)} 
      {(-p)} {(a1)}
    )
    (C {(on_dates)} {(DQ ("00:13"))} {(DQ ("00:01"))} {(save_tag)} {(a3)} {(unique_commit)} {(a3)} {(tree)} 
      {(-p)} {(a2)}
    )
    (C {(on_dates)} {(DQ ("00:14"))} {(DQ ("00:14"))} {(save_tag)} {(b4)} {(unique_commit)} {(b4)} {(tree)} 
      {(-p)} {(b3)} {(-p)} {(a3)}
    )
    (C {(on_dates)} {(DQ ("00:15"))} {(DQ ("00:15"))} {(save_tag)} {(a4)} {(unique_commit)} {(a4)} {(tree)} 
      {(-p)} {(a3)} {(-p)} {(b4)} {(-p)} {(c3)}
    )
    (C {(on_dates)} {(DQ ("00:16"))} {(DQ ("00:16"))} {(save_tag)} {(l3)} {(unique_commit)} {(l3)} {(tree)} 
      {(-p)} {(a4)}
    )
    (C {(on_dates)} {(DQ ("00:17"))} {(DQ ("00:17"))} {(save_tag)} {(l4)} {(unique_commit)} {(l4)} {(tree)} 
      {(-p)} {(l3)}
    )
    (C {(on_dates)} {(DQ ("00:18"))} {(DQ ("00:18"))} {(save_tag)} {(l5)} {(unique_commit)} {(l5)} {(tree)} 
      {(-p)} {(l4)}
    )
    (C {(on_dates)} {(DQ ("00:19"))} {(DQ ("00:19"))} {(save_tag)} {(m1)} {(unique_commit)} {(m1)} {(tree)} 
      {(-p)} {(a4)} {(-p)} {(c3)}
    )
    (C {(on_dates)} {(DQ ("00:20"))} {(DQ ("00:20"))} {(save_tag)} {(m2)} {(unique_commit)} {(m2)} {(tree)} 
      {(-p)} {(c3)} {(-p)} {(a4)}
    )
    (C {(on_dates)} {(DQ ("00:21"))} {(DQ ("00:21"))} {(hide_error)} {(save_tag)} {(alt_root)} 
      {(unique_commit)} {(alt_root)} {(tree)}
    )
    (C {(on_dates)} {(DQ ("00:22"))} {(DQ ("00:22"))} {(save_tag)} {(r0)} {(unique_commit)} {(r0)} {(tree)} 
      {(-p)} {(alt_root)}
    )
    (C {(on_dates)} {(DQ ("00:23"))} {(DQ ("00:23"))} {(save_tag)} {(r1)} {(unique_commit)} {(r1)} {(tree)} 
      {(-p)} {(r0)}
    )
    (C {(on_dates)} {(DQ ("00:24"))} {(DQ ("00:24"))} {(save_tag)} {(l5r1)} {(unique_commit)} {(l5r1)} 
      {(tree)} {(-p)} {(l5)} {(-p)} {(r1)}
    )
    (C {(on_dates)} {(DQ ("00:25"))} {(DQ ("00:25"))} {(save_tag)} {(r1l5)} {(unique_commit)} {(r1l5)} 
      {(tree)} {(-p)} {(r1)} {(-p)} {(l5)}
    )
    (C {(hide_error)} {(save_tag)} {(e1)} {(as_author)} {(e) (Lit_Other "@") (example.com)} 
      {(unique_commit)} {(e1)} {(tree)}
    )
    (C {(save_tag)} {(e2)} {(as_author)} {(e) (Lit_Other "@") (example.com)} {(unique_commit)} {(e2)} 
      {(tree)} {(-p)} {(e1)}
    )
    (C {(save_tag)} {(f1)} {(as_author)} {(f) (Lit_Other "@") (example.com)} {(unique_commit)} {(f1)} 
      {(tree)} {(-p)} {(e1)}
    )
    (C {(save_tag)} {(e3)} {(as_author)} {(e) (Lit_Other "@") (example.com)} {(unique_commit)} {(e3)} 
      {(tree)} {(-p)} {(e2)}
    )
    (C {(save_tag)} {(f2)} {(as_author)} {(f) (Lit_Other "@") (example.com)} {(unique_commit)} {(f2)} 
      {(tree)} {(-p)} {(f1)}
    )
    (C {(save_tag)} {(e4)} {(as_author)} {(e) (Lit_Other "@") (example.com)} {(unique_commit)} {(e4)} 
      {(tree)} {(-p)} {(e3)} {(-p)} {(f2)}
    )
    (C {(save_tag)} {(e5)} {(as_author)} {(e) (Lit_Other "@") (example.com)} {(unique_commit)} {(e5)} 
      {(tree)} {(-p)} {(e4)}
    )
    (C {(save_tag)} {(f3)} {(as_author)} {(f) (Lit_Other "@") (example.com)} {(unique_commit)} {(f3)} 
      {(tree)} {(-p)} {(f2)}
    )
    (C {(save_tag)} {(f4)} {(as_author)} {(f) (Lit_Other "@") (example.com)} {(unique_commit)} {(f4)} 
      {(tree)} {(-p)} {(f3)}
    )
    (C {(save_tag)} {(e6)} {(as_author)} {(e) (Lit_Other "@") (example.com)} {(unique_commit)} {(e6)} 
      {(tree)} {(-p)} {(e5)} {(-p)} {(f4)}
    )
    (C {(save_tag)} {(f5)} {(as_author)} {(f) (Lit_Other "@") (example.com)} {(unique_commit)} {(f5)} 
      {(tree)} {(-p)} {(f4)}
    )
    (C {(save_tag)} {(f6)} {(as_author)} {(f) (Lit_Other "@") (example.com)} {(unique_commit)} {(f6)} 
      {(tree)} {(-p)} {(f5)} {(-p)} {(e6)}
    )
    (C {(save_tag)} {(e7)} {(as_author)} {(e) (Lit_Other "@") (example.com)} {(unique_commit)} {(e7)} 
      {(tree)} {(-p)} {(e6)}
    )
    (C {(save_tag)} {(e8)} {(as_author)} {(e) (Lit_Other "@") (example.com)} {(unique_commit)} {(e8)} 
      {(tree)} {(-p)} {(e7)}
    )
    (C {(save_tag)} {(e9)} {(as_author)} {(e) (Lit_Other "@") (example.com)} {(unique_commit)} {(e9)} 
      {(tree)} {(-p)} {(e8)}
    )
    (C {(save_tag)} {(f7)} {(as_author)} {(f) (Lit_Other "@") (example.com)} {(unique_commit)} {(f7)} 
      {(tree)} {(-p)} {(f6)}
    )
    (C {(save_tag)} {(f8)} {(as_author)} {(f) (Lit_Other "@") (example.com)} {(unique_commit)} {(f8)} 
      {(tree)} {(-p)} {(f7)}
    )
    (C {(save_tag)} {(f9)} {(as_author)} {(f) (Lit_Other "@") (example.com)} {(unique_commit)} {(f9)} 
      {(tree)} {(-p)} {(f8)}
    )
    (C {(save_tag)} {(e10)} {(as_author)} {(e) (Lit_Other "@") (example.com)} {(unique_commit)} {(e1)} 
      {(tree)} {(-p)} {(e9)} {(-p)} {(f8)}
    )
    (C {(hide_error)} {(save_tag)} {(g0)} {(unique_commit)} {(g0)} {(tree)})
    (C {(save_tag)} {(g1)} {(unique_commit)} {(g1)} {(tree)} {(-p)} {(g0)})
    (C {(save_tag)} {(h1)} {(unique_commit)} {(g2)} {(tree)} {(-p)} {(g0)})
    (C {(save_tag)} {(g2)} {(unique_commit)} {(g3)} {(tree)} {(-p)} {(g1)} {(-p)} {(h1)})
    (C {(save_tag)} {(h2)} {(unique_commit)} {(g4)} {(tree)} {(-p)} {(g2)})
    (C {(save_tag)} {(g3)} {(unique_commit)} {(g5)} {(tree)} {(-p)} {(g2)})
    (C {(save_tag)} {(g4)} {(unique_commit)} {(g6)} {(tree)} {(-p)} {(g3)} {(-p)} {(h2)})
    (C {(git)} {(update-ref)} {(HEAD)} 
      {
        (CommandSubPart
          command_list: (CommandList children:[(C {(tag)} {(l5)})])
          left_token: <Left_CommandSub "$(">
          spids: [1245 1249]
        )
      }
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"rev-list has correct number of entries">)}
        {(SQ <"git rev-list HEAD | wc -l | tr -d \\\" \\\"">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("19\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1262]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"simple topo order">)}
        {(SQ <"git rev-list --topo-order  HEAD">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("c3\n") ("c2\n") ("c1\n") ("b4\n") ("a3\n") ("a2\n") 
                ("a1\n") ("b3\n") ("b2\n") ("b1\n") ("a0\n") ("l2\n") ("l1\n") ("l0\n") ("root\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1277]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"simple date order">)}
        {(SQ <"git rev-list --date-order  HEAD">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("b4\n") ("a3\n") ("a2\n") ("c3\n") ("c2\n") ("b3\n") 
                ("b2\n") ("c1\n") ("b1\n") ("a1\n") ("a0\n") ("l2\n") ("l1\n") ("l0\n") ("root\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1310]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"simple author-date order">)}
        {(SQ <"git rev-list --author-date-order  HEAD">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("b4\n") ("c3\n") ("c2\n") ("b3\n") ("b2\n") ("c1\n") 
                ("b1\n") ("a3\n") ("a2\n") ("a1\n") ("a0\n") ("l2\n") ("l1\n") ("l0\n") ("root\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1343]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"two diamonds topo order (g6)">)}
        {(SQ <"git rev-list --topo-order  g4">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("g4\n") ("h2\n") ("g3\n") ("g2\n") ("h1\n") ("g1\n") ("g0\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1376]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"multiple heads">)}
        {(SQ <"git rev-list --topo-order a3 b3 c3">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("a3\n") ("a2\n") ("a1\n") ("c3\n") ("c2\n") ("c1\n") ("b3\n") ("b2\n") ("b1\n") ("a0\n") 
                ("l2\n") ("l1\n") ("l0\n") ("root\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1397]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"multiple heads, prune at a1">)}
        {(SQ <"git rev-list --topo-order a3 b3 c3 ^a1">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("a3\n") ("a2\n") ("c3\n") ("c2\n") ("c1\n") ("b3\n") ("b2\n") ("b1\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1425]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"multiple heads, prune at l1">)}
        {(SQ <"git rev-list --topo-order a3 b3 c3 ^l1">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("a3\n") ("a2\n") ("a1\n") ("c3\n") ("c2\n") ("c1\n") ("b3\n") ("b2\n") ("b1\n") ("a0\n") 
                ("l2\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1447]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"cross-epoch, head at l5, prune at l1">)}
        {(SQ <"git rev-list --topo-order l5 ^l1">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("c3\n") ("c2\n") ("c1\n") ("b4\n") ("a3\n") ("a2\n") 
                ("a1\n") ("b3\n") ("b2\n") ("b1\n") ("a0\n") ("l2\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1472]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"duplicated head arguments">)}
        {(SQ <"git rev-list --topo-order l5 l5 ^l1">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("c3\n") ("c2\n") ("c1\n") ("b4\n") ("a3\n") ("a2\n") 
                ("a1\n") ("b3\n") ("b2\n") ("b1\n") ("a0\n") ("l2\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1502]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"prune near topo">)}
        {(SQ <"git rev-list --topo-order a4 ^c3">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("a4\n") ("b4\n") ("a3\n") ("a2\n") ("a1\n") ("b3\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1532]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("head has no parent"))}
        {(SQ <"git rev-list --topo-order  root">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("root\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1552]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("two nodes - one head, one base"))}
        {(SQ <"git rev-list --topo-order  l0">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("l0\n") ("root\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1567]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("three nodes one head, one internal, one base"))}
        {(SQ <"git rev-list --topo-order  l1">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("l1\n") ("l0\n") ("root\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1583]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("linear prune l2 ^root"))}
        {(SQ <"git rev-list --topo-order  l2 ^root">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("l2\n") ("l1\n") ("l0\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1600]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("linear prune l2 ^l0"))}
        {(SQ <"git rev-list --topo-order  l2 ^l0">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("l2\n") ("l1\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1617]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("linear prune l2 ^l1"))}
        {(SQ <"git rev-list --topo-order  l2 ^l1">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("l2\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1633]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("linear prune l5 ^a4"))}
        {(SQ <"git rev-list --topo-order  l5 ^a4">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("l5\n") ("l4\n") ("l3\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1648]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("linear prune l5 ^l3"))}
        {(SQ <"git rev-list --topo-order  l5 ^l3">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("l5\n") ("l4\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1665]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("linear prune l5 ^l4"))}
        {(SQ <"git rev-list --topo-order  l5 ^l4">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("l5\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1681]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("max-count 10 - topo order"))}
        {(SQ <"git rev-list --topo-order  --max-count=10 l5">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("c3\n") ("c2\n") ("c1\n") ("b4\n") ("a3\n") ("a2\n"))
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1696]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("max-count 10 - non topo order"))}
        {(SQ <"git rev-list --max-count=10 l5">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("b4\n") ("a3\n") ("a2\n") ("c3\n") ("c2\n") ("b3\n"))
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1720]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"--max-age=c3, no --topo-order">)}
        {
          (DQ ("git rev-list --max-age=") 
            (CommandSubPart
              command_list: (CommandList children:[(C {(commit_date)} {(c3)})])
              left_token: <Left_CommandSub "$(">
              spids: [1742 1746]
            ) (" l5")
          )
        }
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("b4\n") ("a3\n") ("a2\n") ("c3\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1750]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"one specified head reachable from another a4, c3, --topo-order">)}
        {(DQ ("list_duplicates git rev-list --topo-order a4 c3"))}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ )}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1812]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"one specified head reachable from another c3, a4, --topo-order">)}
        {(DQ ("list_duplicates git rev-list --topo-order c3 a4"))}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ )}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1826]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"one specified head reachable from another a4, c3, no --topo-order">)}
        {(DQ ("list_duplicates git rev-list a4 c3"))}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ )}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1840]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"one specified head reachable from another c3, a4, no --topo-order">)}
        {(DQ ("list_duplicates git rev-list c3 a4"))}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ )}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1854]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"graph with c3 and a4 parents of head">)}
        {(DQ ("list_duplicates git rev-list m1"))}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ )}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1868]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"graph with a4 and c3 parents of head">)}
        {(DQ ("list_duplicates git rev-list m2"))}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ )}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1882]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_expect_success)}
        {(DQ ("head ^head --topo-order"))}
        {(SQ <"git rev-list --topo-order  a3 ^a3">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ )}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1896]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_expect_success)}
        {(DQ ("head ^head no --topo-order"))}
        {(SQ <"git rev-list a3 ^a3">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ )}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1910]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"simple topo order (l5r1)">)}
        {(SQ <"git rev-list --topo-order  l5r1">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("l5r1\n") ("r1\n") ("r0\n") ("alt_root\n") ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("c3\n") 
                ("c2\n") ("c1\n") ("b4\n") ("a3\n") ("a2\n") ("a1\n") ("b3\n") ("b2\n") ("b1\n") ("a0\n") ("l2\n") ("l1\n") ("l0\n") 
                ("root\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1924]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(SQ <"simple topo order (r1l5)">)}
        {(SQ <"git rev-list --topo-order  r1l5">)}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("r1l5\n") ("l5\n") ("l4\n") ("l3\n") ("a4\n") ("c3\n") ("c2\n") ("c1\n") ("b4\n") ("a3\n") 
                ("a2\n") ("a1\n") ("b3\n") ("b2\n") ("b1\n") ("a0\n") ("l2\n") ("l1\n") ("l0\n") ("root\n") ("r1\n") ("r0\n") 
                ("alt_root\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1961]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("don't print things unreachable from one branch"))}
        {(DQ ("git rev-list a3 ^b3 --topo-order"))}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: {(DQ ("a3\n") ("a2\n") ("a1\n"))}
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [1998]
        )
      ]
    )
    (SimpleCommand
      words: [
        {(test_output_expect_success)}
        {(DQ ("--topo-order a4 l3"))}
        {(DQ ("git rev-list --topo-order a4 l3"))}
      ]
      redirects: [
        (HereDoc
          op_id: Redir_DLess
          fd: -1
          body: 
            {
              (DQ ("l3\n") ("a4\n") ("c3\n") ("c2\n") ("c1\n") ("b4\n") ("a3\n") ("a2\n") ("a1\n") ("b3\n") 
                ("b2\n") ("b1\n") ("a0\n") ("l2\n") ("l1\n") ("l0\n") ("root\n")
              )
            }
          do_expansion: True
          here_end: EOF
          was_filled: True
          spids: [2015]
        )
      ]
    )
    (C {(test_done)})
  ]
)