Add the ability to code generated prepopulated static nested structs

tools/json_to_struct/element_generator_test.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 from element_generator import GenerateFieldContent
 from element_generator import GenerateElements
 import unittest
 
 class ElementGeneratorTest(unittest.TestCase):
@@ skipping 67 matching lines @@
       '  array_test_my_array,\n' +
       '  2,', '\n'.join(lines))
 
   def testGenerateElements(self):
     schema = [
       {'field': 'f0', 'type': 'int', 'default': 1000, 'optional': True},
       {'field': 'f1', 'type': 'string'},
       {'field': 'f2', 'type': 'enum', 'ctype': 'QuasiBool', 'default': 'MAYBE',
        'optional': True},
       {'field': 'f3', 'type': 'array', 'contents': {'type': 'string16'},
-       'optional': True}
+       'optional': True},
+      {
+        'field': 'f4',
+        'type': 'object',
+        'type_name': 'InnerType',
+        'fields': [
+          {'field': 'g0', 'type': 'string'}
+        ],
+        'optional': True
+      },
+      {
+        'field': 'f5',
+        'type': 'array',
+        'contents': {
+          'type': 'object',
+          'type_name': 'InnerType',
+          'fields': [
+            {'field': 'a0', 'type': 'string'},
+            {'field': 'a1', 'type': 'string'}
+          ]
+        },
+        'optional': True
+      }
     ]
     description = {
       'int_variables': {'a': -5, 'b': 5},
       'elements': {
         'elem0': {'f0': 5, 'f1': 'foo', 'f2': 'SURE'},
         'elem1': {'f2': 'NOWAY', 'f0': -2, 'f1': 'bar'},
-        'elem2': {'f1': 'foo_bar', 'f3': [u'bar', u'foo']}
+        'elem2': {'f1': 'foo_bar', 'f3': [u'bar', u'foo']},
+        'elem3': {'f1': 'foo', 'f4': {'g0': 'test'}},
+        'elem4': {'f1': 'foo', 'f5': [{'a0': 'test0', 'a1': 'test1'}]},
       }
     }
 
     # Build the expected result stream based on the unpredicatble order the
     # dictionary element are listed in.
     int_variable_expected = {
       'a': 'const int a = -5;\n',
       'b': 'const int b = 5;\n',
     }
     elements_expected = {
-      'elem0': 'const MyType elem0 = {\n' +
-               '  5,\n' +
-               '  "foo",\n' +
-               '  SURE,\n' +
-               '  NULL,\n' +
+      'elem0': 'const MyType elem0 = {\n'
+               '  5,\n'
+               '  "foo",\n'
+               '  SURE,\n'
+               '  NULL,\n'
+               '  0,\n'
+               '  {0},\n'
+               '  NULL,\n'
                '  0,\n'
                '};\n',
-      'elem1': 'const MyType elem1 = {\n' +
-               '  -2,\n' +
-               '  "bar",\n' +
-               '  NOWAY,\n' +
-               '  NULL,\n' +
+      'elem1': 'const MyType elem1 = {\n'
+               '  -2,\n'
+               '  "bar",\n'
+               '  NOWAY,\n'
+               '  NULL,\n'
+               '  0,\n'
+               '  {0},\n'
+               '  NULL,\n'
                '  0,\n'
                '};\n',
-      'elem2': 'const wchar_t* const array_elem2_f3[] = {\n' +
-               '  L"bar",\n' +
-               '  L"foo",\n' +
-               '};\n' +
-               'const MyType elem2 = {\n' +
-               '  1000,\n' +
-               '  "foo_bar",\n' +
-               '  MAYBE,\n' +
-               '  array_elem2_f3,\n' +
+      'elem2': 'const wchar_t* const array_elem2_f3[] = {\n'
+               '  L"bar",\n'
+               '  L"foo",\n'
+               '};\n'
+               'const MyType elem2 = {\n'
+               '  1000,\n'
+               '  "foo_bar",\n'
+               '  MAYBE,\n'
+               '  array_elem2_f3,\n'
                '  2,\n'
+               '  {0},\n'
+               '  NULL,\n'
+               '  0,\n'
+               '};\n',
+      'elem3': 'const MyType elem3 = {\n'
+               '  1000,\n'
+               '  "foo",\n'
+               '  MAYBE,\n'
+               '  NULL,\n'
+               '  0,\n'
+               '  {\n'
+               '    "test",\n'
+               '  },\n'
+               '  NULL,\n'
+               '  0,\n'
+               '};\n',
+      'elem4': 'const InnerType array_elem4_f5[] = {\n'
+               '  {\n'
+               '    "test0",\n'
+               '    "test1",\n'
+               '  },\n'
+               '};\n'
+               'const MyType elem4 = {\n'
+               '  1000,\n'
+               '  "foo",\n'
+               '  MAYBE,\n'
+               '  NULL,\n'
+               '  0,\n'
+               '  {0},\n'
+               '  array_elem4_f5,\n'
+               '  1,\n'
                '};\n'
     }
     expected = ''
     for key, value in description['int_variables'].items():
       expected += int_variable_expected[key]
     expected += '\n'
     elements = []
     for key, value in description['elements'].items():
       elements.append(elements_expected[key])
     expected += '\n'.join(elements)
@@ skipping 11 matching lines @@
       'elements': {
         'elem0': {'f0': 5},
       }
     }
 
     self.assertRaises(RuntimeError,
       lambda: GenerateElements('MyType', schema, description))
 
 if __name__ == '__main__':
   unittest.main()