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Side by Side Diff: mojo/public/tools/bindings/pylib/mojom_tests/generate/data_unittest.py

Issue 814543006: Move //mojo/{public, edk} underneath //third_party (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 5 years, 11 months ago
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1 # Copyright 2014 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
4
5 import imp
6 import os.path
7 import sys
8 import unittest
9
10 def _GetDirAbove(dirname):
11 """Returns the directory "above" this file containing |dirname| (which must
12 also be "above" this file)."""
13 path = os.path.abspath(__file__)
14 while True:
15 path, tail = os.path.split(path)
16 assert tail
17 if tail == dirname:
18 return path
19
20 try:
21 imp.find_module("mojom")
22 except ImportError:
23 sys.path.append(os.path.join(_GetDirAbove("pylib"), "pylib"))
24 from mojom.generate import data
25 from mojom.generate import module as mojom
26
27
28 class DataTest(unittest.TestCase):
29
30 def testStructDataConversion(self):
31 """Tests that a struct can be converted from data."""
32 module = mojom.Module('test_module', 'test_namespace')
33 struct_data = {
34 'name': 'SomeStruct',
35 'attributes': [],
36 'enums': [],
37 'constants': [],
38 'fields': [
39 {'name': 'field1', 'kind': 'i32'},
40 {'name': 'field2', 'kind': 'i32', 'ordinal': 10},
41 {'name': 'field3', 'kind': 'i32', 'default': 15}]}
42
43 struct = data.StructFromData(module, struct_data)
44 del struct_data['attributes']
45 del struct_data['enums']
46 del struct_data['constants']
47 struct.fields = map(lambda field:
48 data.FieldFromData(module, field, struct), struct.fields_data)
49 self.assertEquals(struct_data, data.StructToData(struct))
50
51 def testUnionDataConversion(self):
52 """Tests that a union can be converted from data."""
53 module = mojom.Module('test_module', 'test_namespace')
54 union_data = {
55 'name': 'SomeUnion',
56 'fields': [
57 {'name': 'field1', 'kind': 'i32'},
58 {'name': 'field2', 'kind': 'i32', 'ordinal': 10}]}
59
60 union = data.UnionFromData(module, union_data)
61 union.fields = map(lambda field:
62 data.FieldFromData(module, field, union), union.fields_data)
63 self.assertEquals(union_data, data.UnionToData(union))
64
65 def testImportFromDataNoMissingImports(self):
66 """Tests that unions, structs, interfaces and enums are imported."""
67 module = mojom.Module('test_module', 'test_namespace')
68 imported_module = mojom.Module('import_module', 'import_namespace')
69 #TODO(azani): Init values in module.py.
70 #TODO(azani): Test that values are imported.
71 imported_module.values = {}
72 imported_data = {'module' : imported_module}
73
74
75 struct = mojom.Struct('TestStruct', module=module)
76 imported_module.kinds[struct.spec] = struct
77
78 union = mojom.Union('TestUnion', module=module)
79 imported_module.kinds[union.spec] = union
80
81 interface = mojom.Interface('TestInterface', module=module)
82 imported_module.kinds[interface.spec] = interface
83
84 enum = mojom.Enum('TestEnum', module=module)
85 imported_module.kinds[enum.spec] = enum
86
87 data.ImportFromData(module, imported_data)
88
89 # Test that the kind was imported.
90 self.assertIn(struct.spec, module.kinds)
91 self.assertEquals(struct.name, module.kinds[struct.spec].name)
92
93 self.assertIn(union.spec, module.kinds)
94 self.assertEquals(union.name, module.kinds[union.spec].name)
95
96 self.assertIn(interface.spec, module.kinds)
97 self.assertEquals(interface.name, module.kinds[interface.spec].name)
98
99 self.assertIn(enum.spec, module.kinds)
100 self.assertEquals(enum.name, module.kinds[enum.spec].name)
101
102 # Test that the imported kind is a copy and not the original.
103 self.assertIsNot(struct, module.kinds[struct.spec])
104 self.assertIsNot(union, module.kinds[union.spec])
105 self.assertIsNot(interface, module.kinds[interface.spec])
106 self.assertIsNot(enum, module.kinds[enum.spec])
107
108 def testImportFromDataNoExtraneousImports(self):
109 """Tests that arrays, maps and interface requests are not imported."""
110 module = mojom.Module('test_module', 'test_namespace')
111 imported_module = mojom.Module('import_module', 'import_namespace')
112 #TODO(azani): Init values in module.py.
113 imported_module.values = {}
114 imported_data = {'module' : imported_module}
115
116 array = mojom.Array(mojom.INT16, length=20)
117 imported_module.kinds[array.spec] = array
118
119 map_kind = mojom.Map(mojom.INT16, mojom.INT16)
120 imported_module.kinds[map_kind.spec] = map_kind
121
122 interface = mojom.Interface('TestInterface', module=module)
123 imported_module.kinds[interface.spec] = interface
124
125 interface_req = mojom.InterfaceRequest(interface)
126 imported_module.kinds[interface_req.spec] = interface_req
127
128 data.ImportFromData(module, imported_data)
129
130 self.assertNotIn(array.spec, module.kinds)
131 self.assertNotIn(map_kind.spec, module.kinds)
132 self.assertNotIn(interface_req.spec, module.kinds)
133
134 def testNonInterfaceAsInterfaceRequest(self):
135 """Tests that a non-interface cannot be used for interface requests."""
136 module = mojom.Module('test_module', 'test_namespace')
137 interface = mojom.Interface('TestInterface', module=module)
138 method_dict = {
139 'name': 'Foo',
140 'parameters': [{'name': 'foo', 'kind': 'r:i32'}],
141 }
142 with self.assertRaises(Exception) as e:
143 data.MethodFromData(module, method_dict, interface)
144 self.assertEquals(e.exception.__str__(),
145 'Interface request requires \'i32\' to be an interface.')
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