pytorch

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# Owner(s): ["oncall: jit"]
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import os
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import sys
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from textwrap import dedent
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import torch
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from torch.testing._internal import jit_utils
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# Make the helper files in test/ importable
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pytorch_test_dir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
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sys.path.append(pytorch_test_dir)
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from torch.testing._internal.jit_utils import JitTestCase
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if __name__ == "__main__":
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    raise RuntimeError(
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        "This test file is not meant to be run directly, use:\n\n"
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        "\tpython test/test_jit.py TESTNAME\n\n"
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        "instead."
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    )
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# Tests various JIT-related utility functions.
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class TestJitUtils(JitTestCase):
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    # Tests that POSITIONAL_OR_KEYWORD arguments are captured.
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    def test_get_callable_argument_names_positional_or_keyword(self):
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        def fn_positional_or_keyword_args_only(x, y):
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            return x + y
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        self.assertEqual(
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            ["x", "y"],
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            torch._jit_internal.get_callable_argument_names(
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                fn_positional_or_keyword_args_only
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            ),
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        )
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    # Tests that POSITIONAL_ONLY arguments are ignored.
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    def test_get_callable_argument_names_positional_only(self):
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        code = dedent(
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            """
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            def fn_positional_only_arg(x, /, y):
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                return x + y
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        """
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        )
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        fn_positional_only_arg = jit_utils._get_py3_code(code, "fn_positional_only_arg")
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        self.assertEqual(
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            ["y"],
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            torch._jit_internal.get_callable_argument_names(fn_positional_only_arg),
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        )
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    # Tests that VAR_POSITIONAL arguments are ignored.
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    def test_get_callable_argument_names_var_positional(self):
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        # Tests that VAR_POSITIONAL arguments are ignored.
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        def fn_var_positional_arg(x, *arg):
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            return x + arg[0]
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        self.assertEqual(
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            ["x"],
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            torch._jit_internal.get_callable_argument_names(fn_var_positional_arg),
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        )
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    # Tests that KEYWORD_ONLY arguments are ignored.
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    def test_get_callable_argument_names_keyword_only(self):
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        def fn_keyword_only_arg(x, *, y):
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            return x + y
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        self.assertEqual(
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            ["x"], torch._jit_internal.get_callable_argument_names(fn_keyword_only_arg)
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        )
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    # Tests that VAR_KEYWORD arguments are ignored.
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    def test_get_callable_argument_names_var_keyword(self):
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        def fn_var_keyword_arg(**args):
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            return args["x"] + args["y"]
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        self.assertEqual(
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            [], torch._jit_internal.get_callable_argument_names(fn_var_keyword_arg)
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        )
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    # Tests that a function signature containing various different types of
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    # arguments are ignored.
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    def test_get_callable_argument_names_hybrid(self):
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        code = dedent(
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            """
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            def fn_hybrid_args(x, /, y, *args, **kwargs):
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                return x + y + args[0] + kwargs['z']
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        """
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        )
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        fn_hybrid_args = jit_utils._get_py3_code(code, "fn_hybrid_args")
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        self.assertEqual(
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            ["y"], torch._jit_internal.get_callable_argument_names(fn_hybrid_args)
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        )
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    def test_checkscriptassertraisesregex(self):
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        def fn():
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            tup = (1, 2)
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            return tup[2]
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        self.checkScriptRaisesRegex(fn, (), Exception, "range", name="fn")
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        s = dedent(
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            """
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        def fn():
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            tup = (1, 2)
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            return tup[2]
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        """
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        )
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        self.checkScriptRaisesRegex(s, (), Exception, "range", name="fn")
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    def test_no_tracer_warn_context_manager(self):
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        torch._C._jit_set_tracer_state_warn(True)
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        with jit_utils.NoTracerWarnContextManager() as no_warn:
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            self.assertEqual(False, torch._C._jit_get_tracer_state_warn())
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        self.assertEqual(True, torch._C._jit_get_tracer_state_warn())
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