import pytest

from freqtrade.util import render_template, render_template_with_fallback


def test_render_template_fallback():
    from jinja2.exceptions import TemplateNotFound
    with pytest.raises(TemplateNotFound):
        val = render_template(
            templatefile='subtemplates/indicators_does-not-exist.j2',)

    val = render_template_with_fallback(
        templatefile='strategy_subtemplates/indicators_does-not-exist.j2',
        templatefallbackfile='strategy_subtemplates/indicators_minimal.j2',
    )
    assert isinstance(val, str)
    assert 'if self.dp' in val