(command.CommandList
  children: [
    (command.ShFunction
      name: test_diff_frobnitz
      body: 
        (command.BraceGroup
          children: [
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<file1>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\E'>) <OF>}
                  here_end_span_id: 49
                  stdin_parts: [
                    <'#include <stdio.h>\n'>
                    <'\n'>
                    <'// Frobs foo heartily\n'>
                    <'int frobnitz(int foo)\n'>
                    <'{\n'>
                    <'    int i;\n'>
                    <'    for(i = 0; i < 10; i++)\n'>
                    <'    {\n'>
                    <'        printf("Your answer is: ");\n'>
                    <'        printf("%d\\n", foo);\n'>
                    <'    }\n'>
                    <'}\n'>
                    <'\n'>
                    <'int fact(int n)\n'>
                    <'{\n'>
                    <'    if(n > 1)\n'>
                    <'    {\n'>
                    <'        return fact(n-1) * n;\n'>
                    <'    }\n'>
                    <'    return 1;\n'>
                    <'}\n'>
                    <'\n'>
                    <'int main(int argc, char **argv)\n'>
                    <'{\n'>
                    <'    frobnitz(fact(10));\n'>
                    <'}\n'>
                  ]
                )
              ]
            )
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<file2>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\E'>) <OF>}
                  here_end_span_id: 86
                  stdin_parts: [
                    <'#include <stdio.h>\n'>
                    <'\n'>
                    <'int fib(int n)\n'>
                    <'{\n'>
                    <'    if(n > 2)\n'>
                    <'    {\n'>
                    <'        return fib(n-1) + fib(n-2);\n'>
                    <'    }\n'>
                    <'    return 1;\n'>
                    <'}\n'>
                    <'\n'>
                    <'// Frobs foo heartily\n'>
                    <'int frobnitz(int foo)\n'>
                    <'{\n'>
                    <'    int i;\n'>
                    <'    for(i = 0; i < 10; i++)\n'>
                    <'    {\n'>
                    <'        printf("%d\\n", foo);\n'>
                    <'    }\n'>
                    <'}\n'>
                    <'\n'>
                    <'int main(int argc, char **argv)\n'>
                    <'{\n'>
                    <'    frobnitz(fib(10));\n'>
                    <'}\n'>
                  ]
                )
              ]
            )
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<expect>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\E'>) <OF>}
                  here_end_span_id: 139
                  stdin_parts: [
                    <'diff --git a/file1 b/file2\n'>
                    <'index 6faa5a3..e3af329 100644\n'>
                    <'--- a/file1\n'>
                    <'+++ b/file2\n'>
                    <'@@ -1,26 +1,25 @@\n'>
                    <' #include <stdio.h>\n'>
                    <' \n'>
                    <'+int fib(int n)\n'>
                    <'+{\n'>
                    <'+    if(n > 2)\n'>
                    <'+    {\n'>
                    <'+        return fib(n-1) + fib(n-2);\n'>
                    <'+    }\n'>
                    <'+    return 1;\n'>
                    <'+}\n'>
                    <'+\n'>
                    <' // Frobs foo heartily\n'>
                    <' int frobnitz(int foo)\n'>
                    <' {\n'>
                    <'     int i;\n'>
                    <'     for(i = 0; i < 10; i++)\n'>
                    <'     {\n'>
                    <'-        printf("Your answer is: ");\n'>
                    <'         printf("%d\\n", foo);\n'>
                    <'     }\n'>
                    <' }\n'>
                    <' \n'>
                    <'-int fact(int n)\n'>
                    <'-{\n'>
                    <'-    if(n > 1)\n'>
                    <'-    {\n'>
                    <'-        return fact(n-1) * n;\n'>
                    <'-    }\n'>
                    <'-    return 1;\n'>
                    <'-}\n'>
                    <'-\n'>
                    <' int main(int argc, char **argv)\n'>
                    <' {\n'>
                    <'-    frobnitz(fact(10));\n'>
                    <'+    frobnitz(fib(10));\n'>
                    <' }\n'>
                  ]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:STRATEGY)
                  op: assign_op.Equal
                  rhs: {($ Id.VSub_Number '$1')}
                  spids: [142]
                )
              ]
            )
            (C {<test_expect_success>} {(DQ ($ Id.VSub_DollarName '$STRATEGY') <' diff'>)} 
              {
                (SQ <'\n'> 
                  <'\t\ttest_must_fail git diff --no-index "--$STRATEGY" file1 file2 > output &&\n'> <'\t\ttest_cmp expect output\n'> <'\t'>
                )
              }
            )
            (C {<test_expect_success>} 
              {(DQ ($ Id.VSub_DollarName '$STRATEGY') <' diff output is valid'>)} 
              {
                (SQ <'\n'> <'\t\tmv file2 expect &&\n'> <'\t\tgit apply < output &&\n'> 
                  <'\t\ttest_cmp expect file2\n'> <'\t'>
                )
              }
            )
          ]
        )
    )
    (command.ShFunction
      name: test_diff_unique
      body: 
        (command.BraceGroup
          children: [
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<uniq1>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\E'>) <OF>}
                  here_end_span_id: 203
                  stdin_parts: [<'1\n'> <'2\n'> <'3\n'> <'4\n'> <'5\n'> <'6\n'>]
                )
              ]
            )
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<uniq2>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\E'>) <OF>}
                  here_end_span_id: 221
                  stdin_parts: [<'a\n'> <'b\n'> <'c\n'> <'d\n'> <'e\n'> <'f\n'>]
                )
              ]
            )
            (command.Simple
              words: [{<cat>}]
              redirects: [
                (redir.Redir op:<Id.Redir_Great '>'> fd:-1 arg_word:{<expect>})
                (redir.HereDoc
                  op: <Id.Redir_DLess '<<'>
                  fd: -1
                  here_begin: {(word_part.EscapedLiteral token:<Id.Lit_EscapedChar '\\E'>) <OF>}
                  here_end_span_id: 250
                  stdin_parts: [
                    <'diff --git a/uniq1 b/uniq2\n'>
                    <'index b414108..0fdf397 100644\n'>
                    <'--- a/uniq1\n'>
                    <'+++ b/uniq2\n'>
                    <'@@ -1,6 +1,6 @@\n'>
                    <'-1\n'>
                    <'-2\n'>
                    <'-3\n'>
                    <'-4\n'>
                    <'-5\n'>
                    <'-6\n'>
                    <'+a\n'>
                    <'+b\n'>
                    <'+c\n'>
                    <'+d\n'>
                    <'+e\n'>
                    <'+f\n'>
                  ]
                )
              ]
            )
            (command.ShAssignment
              pairs: [
                (assign_pair
                  lhs: (sh_lhs_expr.Name name:STRATEGY)
                  op: assign_op.Equal
                  rhs: {($ Id.VSub_Number '$1')}
                  spids: [253]
                )
              ]
            )
            (C {<test_expect_success>} {(SQ <'completely different files'>)} 
              {
                (SQ <'\n'> 
                  <'\t\ttest_must_fail git diff --no-index "--$STRATEGY" uniq1 uniq2 > output &&\n'> <'\t\ttest_cmp expect output\n'> <'\t'>
                )
              }
            )
          ]
        )
    )
  ]
)