import unittest
from pathlib import Path

ROOT = Path(__file__).resolve().parents[1]
QUICK_CONVERSION_EXAMPLE = (
    ROOT / "hdyc-svelte" / "src" / "lib" / "components" / "QuickConversionExample.svelte"
)


class QuickConversionExampleFormattingTests(unittest.TestCase):
    def test_formula_uses_formatted_factor_and_offset(self) -> None:
        text = QUICK_CONVERSION_EXAMPLE.read_text(encoding="utf-8")
        normalized = " ".join(text.split())
        snippet = (
            "1 {config.labels.in1} = {formattedFactorValue}{hasOffset ? ` + ${formattedOffsetValue}` : ''} "
            "{config.labels.in2}"
        )
        self.assertIn(
            snippet,
            normalized,
            "The formula snippet should render formatted factor/offset values instead of raw floats",
        )


if __name__ == "__main__":
    unittest.main()