def make_files(self) -> None:
        """Create test files: two Jinja templates, and data from rendering them."""
        # A Jinja2 file that is syntactically acceptable Python (though it wont run).
        self.make_file("good.j2", """\
            {{ data }}
            line2
            line3
            """)
        # A Jinja2 file that is a Python syntax error.
        self.make_file("bad.j2", """\
            This is data: {{ data }}.
            line 2
            line 3
            """)
        self.make_data_file(
            lines={
                abs_file("good.j2"): [1, 3, 5, 7, 9],
                abs_file("bad.j2"): [1, 3, 5, 7, 9],
            },
        )
Create test files: two Jinja templates, and data from rendering them.
tests/test_report_common.py