(List
  (FunctionDef is_number []
    (List
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('NUMBER', {[VarSub 1]})])
      (= scope=<EAssignScope.LOCAL 0> flags=0 words=[] bindings=[('NUM_RE', {[SQ <LIT_CHARS "^[1-4]+$">]})])
      (If
        (DBracket {B2 BINARY_STRING_TILDE_EQUAL {[VarSub NUMBER]} {[VarSub NUM_RE]}})
        (Com {[LIT_CHARS return]} {[LIT_CHARS 0]})
        (ElseTrue)
        (Com {[LIT_CHARS return]} {[LIT_CHARS 1]})
      )
    )
  )
  (FunctionDef usage []
    (List
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "usage: "][VarSub 0][LIT_CHARS " 1|2|3|4"]]})
      (Com {[LIT_CHARS exit]} {[LIT_CHARS 0]})
    )
  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('BATCH_NUM', {[DQ [VarSub 1]]})])
  (AndOr OP_OR_IF
    (Com {[LIT_CHARS is_number]} {[DQ [VarSub BATCH_NUM]]})
    (Com {[LIT_CHARS usage]})
  )
  (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('TESTS', {[ComSub (Pipeline (Com {[LIT_CHARS find]} {[DQ [ComSub (Com {[LIT_CHARS dirname]} {[DQ [VarSub 0]]})][LIT_CHARS /../unit]]} {[LIT_CHARS -maxdepth]} {[LIT_CHARS 1]} {[LIT_CHARS -name]} {[DQ [VarSub BATCH_NUM][LIT_CHARS "0*.bats"]]}) (Com {[LIT_CHARS sort]} {[LIT_CHARS -n]}) (Com {[LIT_CHARS xargs]}) )]})])
  (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "running the following tests "][VarSub TESTS]]})
  (For test [{[VarSub TESTS]}])
    (List
      (Com {[LIT_CHARS echo]} {[VarSub test]})
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('starttest', {[ComSub (Com {[LIT_CHARS date]} {[LIT_OTHER "+"] [LIT_OTHER "%"] [LIT_CHARS s]})]})])
      (Com {[LIT_CHARS bats]} {[VarSub test]})
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('RC', {[VarSub ?]})])
      (If
        (DBracket {B2 BINARY_INT_NE {[VarSub RC]} {[LIT_CHARS 0]}})
        (List
          (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "exit status: "][VarSub RC]]})
          (Com {[LIT_CHARS exit]} {[VarSub RC]})
        )
      )
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('endtest', {[ComSub (Com {[LIT_CHARS date]} {[LIT_OTHER "+"] [LIT_OTHER "%"] [LIT_CHARS s]})]})])
      (= scope=<EAssignScope.GLOBAL 1> flags=0 words=[] bindings=[('testruntime', {[ArithSub {A2 AS_OP_MINUS {A Atom NODE_ARITH_WORD {[VarSub endtest]}} {A Atom NODE_ARITH_WORD {[VarSub starttest]}}}]})])
      (Com {[LIT_CHARS echo]} {[DQ [LIT_CHARS "individual runtime: "][ComSub (Com {[LIT_CHARS date]} {[LIT_CHARS -u]} {[LIT_CHARS -d]} {[LIT_OTHER "@"] [VarSub testruntime]} {[LIT_OTHER "+"] [DQ [LIT_CHARS "%T"]]})]]})
    )
  )
)