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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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