(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:test_description)
          op: assign_op.Equal
          rhs: {(SQ (Token id:Id.Lit_Chars val:'patience diff algorithm' span_id:6))}
          spids: [4]
        )
      ]
    )
    (C {(.)} {(./test-lib.sh)})
    (C {(.)} {(DQ ($ Id.VSub_DollarName '$TEST_DIRECTORY')) (/lib-diff-alternative.sh)})
    (C {(test_expect_success)} 
      {
        (SQ 
          (Token
            id: Id.Lit_Chars
            val: '--ignore-space-at-eol with a single appended character'
            span_id: 25
          )
        )
      } 
      {
        (SQ (Token id:Id.Lit_Chars val:'\n' span_id:29) 
          (Token id:Id.Lit_Chars val:'\tprintf "a\\nb\\nc\\n" >pre &&\n' span_id:30) (Token id:Id.Lit_Chars val:'\tprintf "a\\nbX\\nc\\n" >post &&\n' span_id:31) 
          (Token
            id: Id.Lit_Chars
            val: '\ttest_must_fail git diff --no-index \\\n'
            span_id: 32
          ) (Token id:Id.Lit_Chars val:'\t\t--patience --ignore-space-at-eol pre post >diff &&\n' span_id:33) 
          (Token id:Id.Lit_Chars val:'\tgrep "^+.*X" diff\n' span_id:34)
        )
      }
    )
    (C {(test_diff_frobnitz)} {(DQ (patience))})
    (C {(test_diff_unique)} {(DQ (patience))})
    (C {(test_done)})
  ]
)