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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.parse import ast | |
25 from mojom.parse import translate | |
26 | |
27 | |
28 class TranslateTest(unittest.TestCase): | |
29 """Tests |parser.Parse()|.""" | |
30 | |
31 def testSimpleArray(self): | |
32 """Tests a simple int32[].""" | |
33 # pylint: disable=W0212 | |
34 self.assertEquals(translate._MapKind("int32[]"), "a:i32") | |
35 | |
36 def testAssociativeArray(self): | |
37 """Tests a simple uint8{string}.""" | |
38 # pylint: disable=W0212 | |
39 self.assertEquals(translate._MapKind("uint8{string}"), "m[s][u8]") | |
40 | |
41 def testLeftToRightAssociativeArray(self): | |
42 """Makes sure that parsing is done from right to left on the internal kinds | |
43 in the presence of an associative array.""" | |
44 # pylint: disable=W0212 | |
45 self.assertEquals(translate._MapKind("uint8[]{string}"), "m[s][a:u8]") | |
46 | |
47 def testTranslateSimpleUnions(self): | |
48 """Makes sure that a simple union is translated correctly.""" | |
49 tree = ast.Mojom( | |
50 None, | |
51 ast.ImportList(), | |
52 [ast.Union("SomeUnion", ast.UnionBody( | |
53 [ast.UnionField("a", None, "int32"), | |
54 ast.UnionField("b", None, "string")]))]) | |
55 expected = [{ | |
56 "name": "SomeUnion", | |
57 "fields": [ | |
58 {"kind": "i32", "name": "a", "ordinal": None}, | |
59 {"kind": "s", "name": "b", "ordinal": None}]}] | |
60 actual = translate.Translate(tree, "mojom_tree") | |
61 self.assertEquals(actual["union"], expected) | |
62 | |
63 | |
64 if __name__ == "__main__": | |
65 unittest.main() | |
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