1 | #!/usr/bin/env python2
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2 | # Copyright 2016 Andy Chu. All rights reserved.
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3 | # Licensed under the Apache License, Version 2.0 (the "License");
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4 | # you may not use this file except in compliance with the License.
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5 | # You may obtain a copy of the License at
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6 | #
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7 | # http://www.apache.org/licenses/LICENSE-2.0
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8 | """
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9 | cmd_eval_test.py: Tests for cmd_eval.py
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10 | """
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11 |
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12 | import unittest
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13 |
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14 | from _devbuild.gen.id_kind_asdl import Id
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15 | from _devbuild.gen.syntax_asdl import (BracedVarSub, suffix_op, CompoundWord)
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16 | from core import test_lib
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17 | from frontend.lexer import DummyToken as Tok
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18 |
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19 |
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20 | def InitEvaluator():
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21 | word_ev = test_lib.InitWordEvaluator()
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22 | test_lib.SetLocalString(word_ev.mem, 'x', 'xxx')
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23 | test_lib.SetLocalString(word_ev.mem, 'y', 'yyy')
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24 | return word_ev
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25 |
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26 |
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27 | class ExpansionTest(unittest.TestCase):
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28 |
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29 | def testBraceExpand(self):
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30 | arena = test_lib.MakeArena('<cmd_eval_test.py>')
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31 | c_parser = test_lib.InitCommandParser('echo _{a,b}_', arena=arena)
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32 | node = c_parser._ParseCommandLine()
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33 | print(node)
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34 |
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35 | cmd_ev = test_lib.InitCommandEvaluator(arena=arena)
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36 | #print(cmd_ev.Execute(node))
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37 | #print(cmd_ev._ExpandWords(node.words))
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38 |
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39 |
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40 | class VarOpTest(unittest.TestCase):
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41 |
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42 | def testVarOps(self):
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43 | ev = InitEvaluator() # initializes x=xxx and y=yyy
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44 | left = None
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45 | unset_sub = BracedVarSub.CreateNull(alloc_lists=True)
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46 | unset_sub.left = left
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47 | unset_sub.token = Tok(Id.VSub_Name, 'unset')
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48 | unset_sub.var_name = 'unset'
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49 |
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50 | part_vals = []
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51 | ev._EvalWordPart(unset_sub, part_vals, 0)
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52 | print(part_vals)
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53 |
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54 | set_sub = BracedVarSub.CreateNull(alloc_lists=True)
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55 | set_sub.left = left
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56 | set_sub.token = Tok(Id.VSub_Name, 'x')
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57 | set_sub.var_name = 'x'
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58 |
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59 | part_vals = []
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60 | ev._EvalWordPart(set_sub, part_vals, 0)
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61 | print(part_vals)
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62 |
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63 | # Now add some ops
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64 | part = Tok(Id.Lit_Chars, 'default')
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65 | arg_word = CompoundWord([part])
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66 | op_tok = Tok(Id.VTest_ColonHyphen, ':-')
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67 | test_op = suffix_op.Unary(op_tok, arg_word)
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68 | unset_sub.suffix_op = test_op
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69 | set_sub.suffix_op = test_op
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70 |
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71 | part_vals = []
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72 | ev._EvalWordPart(unset_sub, part_vals, 0)
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73 | print(part_vals)
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74 |
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75 | part_vals = []
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76 | ev._EvalWordPart(set_sub, part_vals, 0)
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77 | print(part_vals)
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78 |
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79 |
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80 | if __name__ == '__main__':
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81 | unittest.main()
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