(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:test_description)
          op: assign_op.Equal
          rhs: {(SQ <'diff --relative tests'>)}
          spids: [4]
        )
      ]
    )
    (C {<.>} {<./test-lib.sh>})
    (C {<test_expect_success>} {(SQ <setup>)} 
      {
        (SQ <'\n'> <'\tgit commit --allow-empty -m empty &&\n'> <'\techo content >file1 &&\n'> 
          <'\tmkdir subdir &&\n'> <'\techo other content >subdir/file2 &&\n'> <'\tgit add . &&\n'> <'\tgit commit -m one\n'>
        )
      }
    )
    (command.ShFunction
      name: check_diff
      body: 
        (command.BraceGroup
          children: [
            (command.Sentence
              child: 
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:expect)
                      op: assign_op.Equal
                      rhs: {($ Id.VSub_Number '$1')}
                      spids: [37]
                    )
                  ]
                )
              terminator: <Id.Op_Semi _>
            )
            (C {<shift>})
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<expected>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {<EOF>}
                  here_end_span_id: 65
                  stdin_parts: [
                    <'diff --git a/'>
                    ($ Id.VSub_DollarName '$expect')
                    <' b/'>
                    ($ Id.VSub_DollarName '$expect')
                    <'\n'>
                    <'new file mode 100644\n'>
                    <'index 0000000..25c05ef\n'>
                    <'--- /dev/null\n'>
                    <'+++ b/'>
                    ($ Id.VSub_DollarName '$expect')
                    <'\n'>
                    <'@@ -0,0 +1 @@\n'>
                    <'+other content\n'>
                  ]
                )
              ]
            )
            (C {<test_expect_success>} {(DQ <'-p '> ($ Id.VSub_Star '$*'))} 
              {
                (DQ <'\n'> <'\tgit diff -p '> ($ Id.VSub_Star '$*') <' HEAD^ >actual &&\n'> 
                  <'\ttest_cmp expected actual\n'>
                )
              }
            )
          ]
        )
    )
    (command.ShFunction
      name: check_numstat
      body: 
        (command.BraceGroup
          children: [
            (command.Sentence
              child: 
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:expect)
                      op: assign_op.Equal
                      rhs: {($ Id.VSub_Number '$1')}
                      spids: [90]
                    )
                  ]
                )
              terminator: <Id.Op_Semi _>
            )
            (C {<shift>})
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<expected>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {<EOF>}
                  here_end_span_id: 108
                  stdin_parts: [<'1\t0\t'> ($ Id.VSub_DollarName '$expect') <'\n'>]
                )
              ]
            )
            (C {<test_expect_success>} {(DQ <'--numstat '> ($ Id.VSub_Star '$*'))} 
              {
                (DQ <'\n'> <"\techo '1\t0\t"> ($ Id.VSub_DollarName '$expect') <"' >expected &&\n"> 
                  <'\tgit diff --numstat '> ($ Id.VSub_Star '$*') <' HEAD^ >actual &&\n'> <'\ttest_cmp expected actual\n'>
                )
              }
            )
          ]
        )
    )
    (command.ShFunction
      name: check_stat
      body: 
        (command.BraceGroup
          children: [
            (command.Sentence
              child: 
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:expect)
                      op: assign_op.Equal
                      rhs: {($ Id.VSub_Number '$1')}
                      spids: [136]
                    )
                  ]
                )
              terminator: <Id.Op_Semi _>
            )
            (C {<shift>})
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<expected>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {<EOF>}
                  here_end_span_id: 155
                  stdin_parts: [
                    <' '>
                    ($ Id.VSub_DollarName '$expect')
                    <' | 1 +\n'>
                    <' 1 file changed, 1 insertion(+)\n'>
                  ]
                )
              ]
            )
            (C {<test_expect_success>} {(DQ <'--stat '> ($ Id.VSub_Star '$*'))} 
              {
                (DQ <'\n'> <'\tgit diff --stat '> ($ Id.VSub_Star '$*') <' HEAD^ >actual &&\n'> 
                  <'\ttest_i18ncmp expected actual\n'>
                )
              }
            )
          ]
        )
    )
    (command.ShFunction
      name: check_raw
      body: 
        (command.BraceGroup
          children: [
            (command.Sentence
              child: 
                (command.ShAssignment
                  pairs: [
                    (assign_pair
                      lhs: (sh_lhs_expr.Name name:expect)
                      op: assign_op.Equal
                      rhs: {($ Id.VSub_Number '$1')}
                      spids: [180]
                    )
                  ]
                )
              terminator: <Id.Op_Semi _>
            )
            (C {<shift>})
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<expected>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {<EOF>}
                  here_end_span_id: 198
                  stdin_parts: [
                    <
':000000 100644 0000000000000000000000000000000000000000 25c05ef3639d2d270e7fe765a67668f098092bc5 A\t'
                    >
                    ($ Id.VSub_DollarName '$expect')
                    <'\n'>
                  ]
                )
              ]
            )
            (C {<test_expect_success>} {(DQ <'--raw '> ($ Id.VSub_Star '$*'))} 
              {
                (DQ <'\n'> <'\tgit diff --no-abbrev --raw '> ($ Id.VSub_Star '$*') 
                  <' HEAD^ >actual &&\n'> <'\ttest_cmp expected actual\n'>
                )
              }
            )
          ]
        )
    )
    (command.ForEach
      iter_name: type
      iter_words: [{<diff>} {<numstat>} {<stat>} {<raw>}]
      do_arg_iter: F
      body: 
        (command.DoGroup
          children: [
            (C {<check_> ($ Id.VSub_DollarName '$type')} {<file2>} 
              {<--relative> <Id.Lit_Equals '='> <subdir/>}
            )
            (C {<check_> ($ Id.VSub_DollarName '$type')} {<file2>} 
              {<--relative> <Id.Lit_Equals '='> <subdir>}
            )
            (C {<check_> ($ Id.VSub_DollarName '$type')} {<dir/file2>} 
              {<--relative> <Id.Lit_Equals '='> <sub>}
            )
          ]
        )
    )
    (C {<test_done>})
  ]
)