python/tests/stats/test_weighting.py

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import pyspark.sql.functions as f
from tests.test_base import TestBase

from sedona.spark.sql.st_constructors import ST_MakePoint
from sedona.spark.stats.weighting import (
    add_binary_distance_band_column,
    add_distance_band_column,
)


class TestWeighting(TestBase):
    def get_dataframe(self):
        data = [[0, 1, 1], [1, 1, 2]]

        return (
            self.spark.createDataFrame(data)
            .select(ST_MakePoint("_1", "_2").alias("geometry"))
            .withColumn("anotherColumn", f.rand())
        )

    def test_calling_weighting_works(self):
        df = self.get_dataframe()
        add_distance_band_column(df, 1.0)

    def test_calling_binary_weighting_matches_expected(self):
        df = self.get_dataframe()
        self.assert_dataframes_equal(
            add_distance_band_column(
                df, 1.0, binary=True, include_zero_distance_neighbors=True
            ),
            add_binary_distance_band_column(df, 1.0),
        )