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313 def test_is_bool(self): 314 output = self.run(''' 315 echo is_bool(0), is_bool(0.0), is_bool(NULL), is_bool(array()); 316 echo is_bool(FALSE), is_bool(TRUE), is_bool("foo"); 317 ''') 318 assert [i.boolval for i in output] == [False, False, False, False, 319 True, True, False]