Generate a static struct from fieldtrial_testing_config

tools/variations/fieldtrial_to_struct_unittest.py

+# Copyright 2015 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 unittest
+
+import fieldtrial_to_struct
+import os
+
+
+class FieldTrialToStruct(unittest.TestCase):
+
+  def test_FieldTrialToDescription(self):
+    config = {
+      'Study1': [
+        {
+          'group_name': 'Group1',
+          'params': {
+            'x': '1',
+            'y': '2'
+          }
+        }
+      ],
+      'Study2': [{'group_name': 'OtherGroup'}]
+    }
+    result = fieldtrial_to_struct._FieldTrialConfigToDescription(config)
+    expected = {
+      'elements': {
+        'kFieldTrialConfig': {
+          'groups': [
+            {
+              'study': 'Study1',
+              'group_name': 'Group1',
+              'params': [
+                {'key': 'x', 'value': '1'},
+                {'key': 'y', 'value': '2'}
+              ]
+            },
+            {
+              'study': 'Study2',
+              'group_name': 'OtherGroup'
+            }
+          ]
+        }
+      }
+    }
+    self.assertEqual(expected, result)
+
+  def test_FieldTrialToStructMain(self):
+    schema = (
+        '../../chrome/common/variations/fieldtrial_testing_config_schema.json')
+    test_ouput_filename = 'test_ouput'
+    fieldtrial_to_struct.main([
+      '--schema=' + schema,
+      '--output=' + test_ouput_filename,
+      'unittest_data/test_config.json'
+    ])
+    header_filename = test_ouput_filename + '.h'
+    with open(header_filename, 'r') as header:
+      test_header = header.read()
+      with open('unittest_data/expected_output.h', 'r') as expected:
+        expected_header = expected.read()
+        self.assertEqual(expected_header, test_header)
+    os.unlink(header_filename)
+
+    cc_filename = test_ouput_filename + '.cc'
+    with open(cc_filename, 'r') as cc:
+      test_cc = cc.read()
+      with open('unittest_data/expected_output.cc', 'r') as expected:
+        expected_cc = expected.read()
+        self.assertEqual(expected_cc, test_cc)
+    os.unlink(cc_filename)
+
+if __name__ == '__main__':
+  unittest.main()