'linux' platform should exclude 'chromeos' in json compiler.

tools/json_schema_compiler/cpp_bundle_generator_test.py

+#!/usr/bin/env python
+# Copyright 2016 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 cpp_bundle_generator import CppBundleGenerator
+from model import Model
+
+import json_schema
+import os
+import unittest
+
+def _createCppBundleGenerator(file_path):
+  json_object = json_schema.Load(file_path)
+  model = Model()
+  model.AddNamespace(json_object[0], file_path)
+  cpp_bundle_generator = CppBundleGenerator(
+      None, model, None, None, 'generated_api_schemas',
+      None, None, None)
+  return (cpp_bundle_generator, model)
+
+def _getPlatformIfdefs(cpp_bundle_generator, model):
+  return cpp_bundle_generator._GetPlatformIfdefs(
+      model.namespaces.values()[0].functions.values()[0])
+
+class CppBundleGeneratorTest(unittest.TestCase):
+  def testIfDefsForWinLinux(self):
+    cpp_bundle_generator, model = _createCppBundleGenerator(
+        'test/function_platform_win_linux.json')
+    self.assertEquals(
+        'defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))',
+        _getPlatformIfdefs(cpp_bundle_generator, model))
+
+  def testIfDefsForAll(self):
+    cpp_bundle_generator, model = _createCppBundleGenerator(
+        'test/function_platform_all.json')
+    self.assertEquals(
+        'defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS)) || '
+        'defined(OS_CHROMEOS)',
+        _getPlatformIfdefs(cpp_bundle_generator, model))
+
+  def testIfDefsForChromeOS(self):
+    cpp_bundle_generator, model = _createCppBundleGenerator(
+        'test/function_platform_chromeos.json')
+    self.assertEquals(
+        'defined(OS_CHROMEOS)',
+        _getPlatformIfdefs(cpp_bundle_generator, model))
+
+if __name__ == '__main__':
+  unittest.main()