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import ast |
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from py14.scope import add_scope_context |
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from py14.context import add_variable_context |
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4
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from py14.analysis import (FunctionTransformer, CalledWithTransformer, |
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ImportTransformer, AttributeCallTransformer, |
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is_void_function) |
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7
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8
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9
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def parse(*args): |
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source = ast.parse("\n".join(args)) |
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add_scope_context(source) |
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add_variable_context(source) |
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return source |
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14
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15
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16
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def test_is_void_for_fun_with_no_return(): |
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source = parse( |
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"def foo(x):", |
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" bar(x)", |
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) |
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foo = source.body[0] |
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assert is_void_function(foo) |
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24
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25
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def test_is_not_void_for_fun_with_return_value(): |
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source = parse( |
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"def foo(x):", |
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" return x", |
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) |
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foo = source.body[0] |
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assert not is_void_function(foo) |
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32
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33
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34
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class TestFunctionTransformer: |
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def test_nested_functions(self): |
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source = parse( |
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"def foo():", |
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" def bar():", |
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" def gib():", |
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" pass", |
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41
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" def mir():", |
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" pass", |
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) |
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FunctionTransformer().visit(source) |
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45
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46
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foo = source.body[0] |
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47
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bar = foo.body[0] |
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48
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gib = bar.body[0] |
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49
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mir = bar.body[1] |
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50
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51
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assert len(foo.defined_functions) == 1 |
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52
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assert len(bar.defined_functions) == 2 |
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53
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assert len(gib.defined_functions) == 0 |
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54
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assert len(mir.defined_functions) == 0 |
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55
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56
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def test_functions_from_modules(self): |
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57
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source = parse("from foo import bar, baz") |
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FunctionTransformer().visit(source) |
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59
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60
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module = source |
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61
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62
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assert len(module.defined_functions) == 2 |
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63
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64
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65
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class TestCalledWithTransformer: |
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def test_var_called_with_later_function(self): |
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source = parse( |
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68
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"x = 3", |
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"bar(x)", |
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70
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"bar(foo(x))", |
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) |
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72
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CalledWithTransformer().visit(source) |
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73
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74
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x = source.body[0].targets[0] |
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76
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assert len(x.called_with) == 2 |
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77
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78
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79
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class TestAttributeCallTransformer: |
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80
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def test_call_to_attribute_registered(self): |
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81
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source = parse( |
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"x = foo()", |
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"x.bar()", |
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84
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) |
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85
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AttributeCallTransformer().visit(source) |
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86
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87
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x = source.body[0].targets[0] |
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88
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89
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assert len(x.calls) == 1 |
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90
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91
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92
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class TestImportTransformer: |
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93
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def test_function_knows_from_where_it_is_imported(self): |
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94
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source = parse( |
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95
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"from foo import bar", |
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96
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"bar(x)", |
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97
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) |
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98
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ImportTransformer().visit(source) |
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99
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100
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module = source |
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101
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bar_import = source.body[0].names[0] |
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102
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103
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assert len(module.imports) == 1 |
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104
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assert isinstance(bar_import.imported_from, ast.ImportFrom) |
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105
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lukasmartinelli /
py14
