Moving prepopulated search engines to a JSON file.

tools/json_to_struct/element_generator_test.py

Index: tools/json_to_struct/element_generator_test.py
diff --git a/tools/json_to_struct/element_generator_test.py b/tools/json_to_struct/element_generator_test.py
new file mode 100755
index 0000000000000000000000000000000000000000..484e83f94a346db5d163b113bc31468ded27e62a
--- /dev/null
+++ b/tools/json_to_struct/element_generator_test.py
@@ -0,0 +1,158 @@
+#!/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):
+  def testGenerateIntFieldContent(self):
+    lines = [];
+    GenerateFieldContent({'type': 'int', 'default': 5}, None, lines)
+    self.assertEquals(['  5,'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'int', 'default': 5}, 12, lines)
+    self.assertEquals(['  12,'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'int'}, -3, lines)
+    self.assertEquals(['  -3,'], lines)
+
+  def testGenerateStringFieldContent(self):
+    lines = [];
+    GenerateFieldContent({'type': 'string', 'default': 'foo_bar'}, None, lines)
+    self.assertEquals(['  "foo_bar",'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'string', 'default': 'foo'}, 'bar\n', lines)
+    self.assertEquals(['  "bar\\n",'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'string'}, None, lines)
+    self.assertEquals(['  NULL,'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'string'}, 'foo', lines)
+    self.assertEquals(['  "foo",'], lines)
+
+  def testGenerateString16FieldContent(self):
+    lines = [];
+    GenerateFieldContent({'type': 'string16', 'default': u'f\u00d8\u00d81a'},
+                         None, lines)
+    self.assertEquals(['  L"f\\x00d8" L"\\x00d8" L"1a",'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'string16', 'default': 'foo'}, u'b\uc3a5r',
+                         lines)
+    self.assertEquals(['  L"b\\xc3a5" L"r",'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'string16'}, None, lines)
+    self.assertEquals(['  NULL,'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'string16'}, u'foo\\u1234', lines)
+    self.assertEquals(['  L"foo\\\\u1234",'], lines)
+
+  def testGenerateEnumFieldContent(self):
+    lines = [];
+    GenerateFieldContent({'type': 'enum', 'default': 'RED'}, None, lines)
+    self.assertEquals(['  RED,'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'enum', 'default': 'RED'}, 'BLACK', lines)
+    self.assertEquals(['  BLACK,'], lines)
+    lines = [];
+    GenerateFieldContent({'type': 'enum'}, 'BLUE', lines)
+    self.assertEquals(['  BLUE,'], lines)
+
+  def testGenerateArrayFieldContent(self):
+    lines = ['STRUCT BEGINS'];
+    GenerateFieldContent({'type': 'array', 'contents': {'type': 'int'}},
+                         None, lines)
+    self.assertEquals(['STRUCT BEGINS', '  NULL,', '  0,'], lines)
+    lines = ['STRUCT BEGINS'];
+    GenerateFieldContent({'field': 'my_array', 'type': 'array',
+                          'contents': {'type': 'int'}}, [3, 4], lines)
+    self.assertEquals('const int array_my_array[] = {\n' +
+      '  3,\n' +
+      '  4,\n' +
+      '};\n' +
+      'STRUCT BEGINS\n' +
+      '  array_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}
+    ]
+    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']}
+      }
+    }
+
+    # 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' +
+               '  0,\n'
+               '};\n',
+      'elem1': 'const MyType elem1 = {\n' +
+               '  -2,\n' +
+               '  "bar",\n' +
+               '  NOWAY,\n' +
+               '  NULL,\n' +
+               '  0,\n'
+               '};\n',
+      'elem2': 'const wchar_t* const array_f3[] = {\n' +
+               '  L"bar",\n' +
+               '  L"foo",\n' +
+               '};\n' +
+               'const MyType elem2 = {\n' +
+               '  1000,\n' +
+               '  "foo_bar",\n' +
+               '  MAYBE,\n' +
+               '  array_f3,\n' +
+               '  2,\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)
+
+    result = GenerateElements('MyType', schema, description)
+    self.assertEquals(expected, result)
+
+  def testGenerateElementsMissingMandatoryField(self):
+    schema = [
+      {'field': 'f0', 'type': 'int'},
+      {'field': 'f1', 'type': 'string'},
+    ]
+    description = {
+      'int_variables': {'a': -5, 'b': 5},
+      'elements': {
+        'elem0': {'f0': 5},
+      }
+    }
+
+    self.assertRaises(RuntimeError,
+      lambda: GenerateElements('MyType', schema, description))
+
+if __name__ == '__main__':
+  unittest.main()