Update mojo sdk to rev 59145288bae55b0fce4276b017df6a1117bcf00f

mojo/public/tools/bindings/pylib/mojom_tests/parse/translate_unittest.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import imp
 import os.path
 import sys
 import unittest
 
 def _GetDirAbove(dirname):
   """Returns the directory "above" this file containing |dirname| (which must
   also be "above" this file)."""
   path = os.path.abspath(__file__)
   while True:
     path, tail = os.path.split(path)
     assert tail
     if tail == dirname:
       return path
 
 try:
   imp.find_module("mojom")
 except ImportError:
   sys.path.append(os.path.join(_GetDirAbove("pylib"), "pylib"))
-import mojom.parse.translate as translate
+from mojom.parse import ast
+from mojom.parse import translate
 
 
 class TranslateTest(unittest.TestCase):
   """Tests |parser.Parse()|."""
 
   def testSimpleArray(self):
     """Tests a simple int32[]."""
     # pylint: disable=W0212
     self.assertEquals(translate._MapKind("int32[]"), "a:i32")
 
   def testAssociativeArray(self):
     """Tests a simple uint8{string}."""
     # pylint: disable=W0212
     self.assertEquals(translate._MapKind("uint8{string}"), "m[s][u8]")
 
   def testLeftToRightAssociativeArray(self):
     """Makes sure that parsing is done from right to left on the internal kinds
        in the presence of an associative array."""
     # pylint: disable=W0212
     self.assertEquals(translate._MapKind("uint8[]{string}"), "m[s][a:u8]")
 
+  def testTranslateSimpleUnions(self):
+    """Makes sure that a simple union is translated correctly."""
+    tree = ast.Mojom(
+        None,
+        ast.ImportList(),
+        [ast.Union("SomeUnion", ast.UnionBody(
+          [ast.UnionField("a", None, "int32"),
+           ast.UnionField("b", None, "string")]))])
+    expected = [{
+      "name": "SomeUnion",
+      "fields": [
+        {"kind": "i32", "name": "a", "ordinal": None},
+        {"kind": "s", "name": "b", "ordinal": None}]}]
+    actual = translate.Translate(tree, "mojom_tree")
+    self.assertEquals(actual["union"], expected)
+
+
 if __name__ == "__main__":
   unittest.main()