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118 lines
4.3 KiB
118 lines
4.3 KiB
# Copyright 2016 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import gn_helpers
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import unittest
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class UnitTest(unittest.TestCase):
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def test_ToGNString(self):
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self.assertEqual(
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gn_helpers.ToGNString([1, 'two', [ '"thr$\\', True, False, [] ]]),
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'[ 1, "two", [ "\\"thr\\$\\\\", true, false, [ ] ] ]')
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def test_UnescapeGNString(self):
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# Backslash followed by a \, $, or " means the folling character without
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# the special meaning. Backslash followed by everything else is a literal.
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self.assertEqual(
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gn_helpers.UnescapeGNString('\\as\\$\\\\asd\\"'),
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'\\as$\\asd"')
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def test_FromGNString(self):
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self.assertEqual(
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gn_helpers.FromGNString('[1, -20, true, false,["as\\"", []]]'),
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[ 1, -20, True, False, [ 'as"', [] ] ])
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('123 456')
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parser.Parse()
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def test_ParseBool(self):
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parser = gn_helpers.GNValueParser('true')
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self.assertEqual(parser.Parse(), True)
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parser = gn_helpers.GNValueParser('false')
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self.assertEqual(parser.Parse(), False)
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def test_ParseNumber(self):
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parser = gn_helpers.GNValueParser('123')
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self.assertEqual(parser.ParseNumber(), 123)
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('')
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parser.ParseNumber()
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('a123')
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parser.ParseNumber()
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def test_ParseString(self):
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parser = gn_helpers.GNValueParser('"asdf"')
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self.assertEqual(parser.ParseString(), 'asdf')
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('') # Empty.
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parser.ParseString()
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('asdf') # Unquoted.
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parser.ParseString()
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('"trailing') # Unterminated.
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parser.ParseString()
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def test_ParseList(self):
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parser = gn_helpers.GNValueParser('[1,]') # Optional end comma OK.
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self.assertEqual(parser.ParseList(), [ 1 ])
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('') # Empty.
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parser.ParseList()
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('asdf') # No [].
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parser.ParseList()
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('[1, 2') # Unterminated
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parser.ParseList()
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with self.assertRaises(gn_helpers.GNException):
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parser = gn_helpers.GNValueParser('[1 2]') # No separating comma.
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parser.ParseList()
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def test_FromGNArgs(self):
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# Booleans and numbers should work; whitespace is allowed works.
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self.assertEqual(gn_helpers.FromGNArgs('foo = true\nbar = 1\n'),
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{'foo': True, 'bar': 1})
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# Whitespace is not required; strings should also work.
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self.assertEqual(gn_helpers.FromGNArgs('foo="bar baz"'),
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{'foo': 'bar baz'})
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# Lists should work.
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self.assertEqual(gn_helpers.FromGNArgs('foo=[1, 2, 3]'),
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{'foo': [1, 2, 3]})
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# Empty strings should return an empty dict.
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self.assertEqual(gn_helpers.FromGNArgs(''), {})
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self.assertEqual(gn_helpers.FromGNArgs(' \n '), {})
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# Non-identifiers should raise an exception.
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with self.assertRaises(gn_helpers.GNException):
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gn_helpers.FromGNArgs('123 = true')
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# References to other variables should raise an exception.
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with self.assertRaises(gn_helpers.GNException):
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gn_helpers.FromGNArgs('foo = bar')
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# References to functions should raise an exception.
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with self.assertRaises(gn_helpers.GNException):
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gn_helpers.FromGNArgs('foo = exec_script("//build/baz.py")')
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# Underscores in identifiers should work.
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self.assertEqual(gn_helpers.FromGNArgs('_foo = true'),
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{'_foo': True})
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self.assertEqual(gn_helpers.FromGNArgs('foo_bar = true'),
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{'foo_bar': True})
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self.assertEqual(gn_helpers.FromGNArgs('foo_=true'),
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{'foo_': True})
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if __name__ == '__main__':
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unittest.main()
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