def test_string_escape(self):
e = Expansion()
e.appendstr('$var')
self.assertEqual(e.to_source(), '$var')
self.assertEqual(e.to_source(escape_variables=True), '$$var')
e = Expansion()
e.appendstr('foo')
e.appendstr(' $bar')
self.assertEqual(e.to_source(escape_variables=True), 'foo $$bar')
def test_multiple_strings(self):
e = Expansion()
e.appendstr('hello')
e.appendstr('world')
self.assertEqual(e.to_source(), 'helloworld')
def test_single_string(self):
e = Expansion()
e.appendstr('foo')
self.assertEqual(e.to_source(), 'foo')
