Method test_file_dest

Lib/test/test_clinic.py:3232–3286

(self)

        self.assertIn(msg, err)

    def test_file_dest(self):
        block = dedent("""
            /*[clinic input]
            destination test new file {path}.h
            output everything test
            func
                a: object
                /
            [clinic start generated code]*/
        """)
        expected_checksum_line = (
            "/*[clinic end generated code: "
            "output=da39a3ee5e6b4b0d input=b602ab8e173ac3bd]*/\n"
        )
        expected_output = dedent("""\
            /*[clinic input]
            preserve
            [clinic start generated code]*/

            PyDoc_VAR(func__doc__);

            PyDoc_STRVAR(func__doc__,
            "func($module, a, /)\\n"
            "--\\n"
            "\\n");

            #define FUNC_METHODDEF    \\
                {"func", (PyCFunction)func, METH_O, func__doc__},

            static PyObject *
            func(PyObject *module, PyObject *a)
            /*[clinic end generated code: output=3dde2d13002165b9 input=a9049054013a1b77]*/
        """)
        with os_helper.temp_dir() as tmp_dir:
            in_fn = os.path.join(tmp_dir, "test.c")
            out_fn = os.path.join(tmp_dir, "test.c.h")
            with open(in_fn, "w", encoding="utf-8") as f:
                f.write(block)
            with open(out_fn, "w", encoding="utf-8") as f:
                f.write("")  # Write an empty output file!
            # Clinic should complain about the empty output file.
            _, err = self.expect_failure(in_fn)
            expected_err = (f"Modified destination file {out_fn!r}; "
                            "not overwriting!")
            self.assertIn(expected_err, err)
            # Run clinic again, this time with the -f option.
            _ = self.expect_success("-f", in_fn)
            # Read back the generated output.
            with open(in_fn, encoding="utf-8") as f:
                data = f.read()
                expected_block = f"{block}{expected_checksum_line}"
                self.assertEqual(data, expected_block)
            with open(out_fn, encoding="utf-8") as f:
                data = f.read()
                self.assertEqual(data, expected_output)

try:
    import _testclinic as ac_tester