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1
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import ast |
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2
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from py14.context import add_variable_context, add_list_calls |
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3
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from py14.scope import add_scope_context |
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4
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5
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6
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def parse(*args): |
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7
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source = ast.parse("\n".join(args)) |
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8
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add_scope_context(source) |
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9
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add_variable_context(source) |
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10
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return source |
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11
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12
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13
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class TestListCallTransformer: |
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14
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def test_call_added(self): |
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15
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source = parse( |
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16
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"results = []", |
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17
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"results.append(x)", |
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18
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) |
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19
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add_list_calls(source) |
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20
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assert len(source.scopes[-1].vars[0].calls) == 1 |
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21
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22
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23
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class TestVariableTranformer: |
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24
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def test_vars_of_if(self): |
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25
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source = parse( |
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26
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"x = 5", |
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27
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"if True:", |
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28
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" y = 10", |
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29
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" x *= y", |
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30
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) |
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31
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assert len(source.vars) == 1 |
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32
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assert len(source.body[1].body_vars) == 1 |
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33
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34
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def test_vars_of_else(self): |
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35
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source = parse( |
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36
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"x = 5", |
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37
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"if True:", |
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38
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" y = 10", |
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39
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" x *= y", |
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40
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"else:", |
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41
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" z = 3", |
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42
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" x *= z", |
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43
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) |
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44
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assert len(source.vars) == 1 |
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45
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assert len(source.body[1].body_vars) == 1 |
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46
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assert len(source.body[1].orelse_vars) == 1 |
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47
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48
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def test_local_vars_of_function(self): |
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49
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source = parse( |
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50
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"def foo():", |
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51
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" results = []", |
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52
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" x = 3", |
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53
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" z = x", |
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54
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" results.append(x)", |
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55
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" return results", |
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56
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) |
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57
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assert len(source.vars) == 0 |
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58
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assert len(source.body[0].vars) == 3 |
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59
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60
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def test_local_vars_of_function_with_args(self): |
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61
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source = parse( |
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62
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"def foo(x, y):", |
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63
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" return x + y", |
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64
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) |
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65
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assert len(source.vars) == 0 |
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66
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assert len(source.body[0].vars) == 2 |
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67
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68
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def test_subscripts_are_ignored(self): |
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69
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source = parse("x[0] = 3") |
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70
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assert len(source.vars) == 0 |
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71
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72
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def test_vars_from_loop(self): |
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73
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source = parse( |
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74
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"newlist = []", |
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75
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"for x in list:", |
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76
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" newlist.append(x)", |
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77
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) |
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78
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assert len(source.vars) == 1 |
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79
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80
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def test_global_vars_of_module(self): |
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81
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source = parse( |
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82
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"x = 3", |
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83
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"def foo():", |
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84
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" results = []", |
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85
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" results.append(x)", |
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86
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" return results", |
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87
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) |
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88
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assert len(source.vars) == 1 |
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89
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assert len(source.body[1].vars) == 1 |
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90
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91
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def test_vars_inside_loop(self): |
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92
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source = parse( |
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93
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"def foo():", |
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94
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" results = []", |
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95
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" for x in range(0, 10):", |
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96
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" results.append(x)", |
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97
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" return results", |
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98
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) |
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99
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assert len(source.vars) == 0 |
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100
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assert len(source.body[0].body[1].vars) == 1 |
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101
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lukasmartinelli /
py14
