1 files changed, 126 insertions, 0 deletions
diff --git a/deps/v8/build/gn_helpers_unittest.py b/deps/v8/build/gn_helpers_unittest.py
new file mode 100644
index 0000000000..43c084b3aa
--- /dev/null
+++ b/deps/v8/build/gn_helpers_unittest.py
@@ -0,0 +1,126 @@
+# 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.
+
+import gn_helpers
+import unittest
+
+class UnitTest(unittest.TestCase):
+  def test_ToGNString(self):
+    self.assertEqual(
+        gn_helpers.ToGNString([1, 'two', [ '"thr$\\', True, False, [] ]]),
+        '[ 1, "two", [ "\\"thr\\$\\\\", true, false, [  ] ] ]')
+
+  def test_UnescapeGNString(self):
+    # Backslash followed by a \, $, or " means the folling character without
+    # the special meaning. Backslash followed by everything else is a literal.
+    self.assertEqual(
+        gn_helpers.UnescapeGNString('\\as\\$\\\\asd\\"'),
+        '\\as$\\asd"')
+
+  def test_FromGNString(self):
+    self.assertEqual(
+        gn_helpers.FromGNString('[1, -20, true, false,["as\\"", []]]'),
+        [ 1, -20, True, False, [ 'as"', [] ] ])
+
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('123 456')
+      parser.Parse()
+
+  def test_ParseBool(self):
+    parser = gn_helpers.GNValueParser('true')
+    self.assertEqual(parser.Parse(), True)
+
+    parser = gn_helpers.GNValueParser('false')
+    self.assertEqual(parser.Parse(), False)
+
+  def test_ParseNumber(self):
+    parser = gn_helpers.GNValueParser('123')
+    self.assertEqual(parser.ParseNumber(), 123)
+
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('')
+      parser.ParseNumber()
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('a123')
+      parser.ParseNumber()
+
+  def test_ParseString(self):
+    parser = gn_helpers.GNValueParser('"asdf"')
+    self.assertEqual(parser.ParseString(), 'asdf')
+
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('')  # Empty.
+      parser.ParseString()
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('asdf')  # Unquoted.
+      parser.ParseString()
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('"trailing')  # Unterminated.
+      parser.ParseString()
+
+  def test_ParseList(self):
+    parser = gn_helpers.GNValueParser('[1,]')  # Optional end comma OK.
+    self.assertEqual(parser.ParseList(), [ 1 ])
+
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('')  # Empty.
+      parser.ParseList()
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('asdf')  # No [].
+      parser.ParseList()
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('[1, 2')  # Unterminated
+      parser.ParseList()
+    with self.assertRaises(gn_helpers.GNException):
+      parser = gn_helpers.GNValueParser('[1 2]')  # No separating comma.
+      parser.ParseList()
+
+  def test_FromGNArgs(self):
+    # Booleans and numbers should work; whitespace is allowed works.
+    self.assertEqual(gn_helpers.FromGNArgs('foo = true\nbar = 1\n'),
+                     {'foo': True, 'bar': 1})
+
+    # Whitespace is not required; strings should also work.
+    self.assertEqual(gn_helpers.FromGNArgs('foo="bar baz"'),
+                     {'foo': 'bar baz'})
+
+    # Comments should work (and be ignored).
+    gn_args_lines = [
+        '# Top-level comment.',
+        'foo = true',
+        'bar = 1  # In-line comment.',
+    ]
+    self.assertEqual(gn_helpers.FromGNArgs('\n'.join(gn_args_lines)),
+                     {'foo': True, 'bar': 1})
+
+    # Lists should work.
+    self.assertEqual(gn_helpers.FromGNArgs('foo=[1, 2, 3]'),
+                     {'foo': [1, 2, 3]})
+
+    # Empty strings should return an empty dict.
+    self.assertEqual(gn_helpers.FromGNArgs(''), {})
+    self.assertEqual(gn_helpers.FromGNArgs(' \n '), {})
+
+    # Non-identifiers should raise an exception.
+    with self.assertRaises(gn_helpers.GNException):
+      gn_helpers.FromGNArgs('123 = true')
+
+    # References to other variables should raise an exception.
+    with self.assertRaises(gn_helpers.GNException):
+      gn_helpers.FromGNArgs('foo = bar')
+
+    # References to functions should raise an exception.
+    with self.assertRaises(gn_helpers.GNException):
+      gn_helpers.FromGNArgs('foo = exec_script("//build/baz.py")')
+
+    # Underscores in identifiers should work.
+    self.assertEqual(gn_helpers.FromGNArgs('_foo = true'),
+                     {'_foo': True})
+    self.assertEqual(gn_helpers.FromGNArgs('foo_bar = true'),
+                     {'foo_bar': True})
+    self.assertEqual(gn_helpers.FromGNArgs('foo_=true'),
+                     {'foo_': True})
+
+if __name__ == '__main__':
+  unittest.main()