(command.CommandList
  children: [
    (command.ShAssignment
      pairs: [
        (assign_pair
          lhs: (sh_lhs_expr.Name name:test_description)
          op: assign_op.Equal
          rhs: {(SQ <'Tests whether perf-lib facilities work'>)}
          spids: [4]
        )
      ]
    )
    (C {<.>} {<'./perf-lib.sh'>})
    (C {<test_perf_default_repo>})
    (C {<test_perf>} {(SQ <'test_perf_default_repo works'>)} 
      {(SQ <'\n'> <'\tfoo=$(git rev-parse HEAD) &&\n'> <'\ttest_export foo\n'>)}
    )
    (C {<test_checkout_worktree>})
    (C {<test_perf>} {(SQ <'test_checkout_worktree works'>)} 
      {
        (SQ <'\n'> <'\twt=$(find . | wc -l) &&\n'> <'\tidx=$(git ls-files | wc -l) &&\n'> 
          <'\ttest $wt -gt $idx\n'>
        )
      }
    )
    (command.ShAssignment
      pairs: [(assign_pair lhs:(sh_lhs_expr.Name name:baz) op:assign_op.Equal rhs:{<baz>} spids:[47])]
    )
    (C {<test_export>} {<baz>})
    (C {<test_expect_success>} {(SQ <'test_export works'>)} 
      {
        (SQ <'\n'> <'\techo "$foo" &&\n'> <'\ttest "$foo" = "$(git rev-parse HEAD)" &&\n'> 
          <'\techo "$baz" &&\n'> <'\ttest "$baz" = baz\n'>
        )
      }
    )
    (C {<test_perf>} {(SQ <'export a weird var'>)} 
      {(SQ <'\n'> <'\tbar="weird # variable" &&\n'> <'\ttest_export bar\n'>)}
    )
    (C {<test_expect_success>} {(SQ <'test_export works with weird vars'>)} 
      {(SQ <'\n'> <'\techo "$bar" &&\n'> <'\ttest "$bar" = "weird # variable"\n'>)}
    )
    (C {<test_perf>} {(SQ <'important variables available in subshells'>)} 
      {
        (SQ <'\n'> <'\ttest -n "$HOME" &&\n'> <'\ttest -n "$TEST_DIRECTORY" &&\n'> 
          <'\ttest -n "$TRASH_DIRECTORY" &&\n'> <'\ttest -n "$GIT_BUILD_DIR"\n'>
        )
      }
    )
    (C {<test_perf>} {(SQ <'test-lib-functions correctly loaded in subshells'>)} 
      {
        (SQ <'\n'> <'\t: >a &&\n'> <'\ttest_path_is_file a &&\n'> <'\t: >b &&\n'> <'\ttest_cmp a b\n'>)
      }
    )
    (C {<test_done>})
  ]
)