Fix tests

Author: MDUYN

pyindicators/indicators/adx.py

@@ -7,7 +7,7 @@
 import pandas as pd
 
 from pyindicators.exceptions import PyIndicatorException
-from pyindicators.utils import pad_zero_values_pandas
+from pyindicators.indicators.utils import pad_zero_values_pandas
 
 
 def polars_ewm_mean_via_pandas(column: pl.Series, alpha: float) -> pl.Series:

pyindicators/indicators/crossover.py

@@ -56,7 +56,8 @@ def crossover(
         else:
             crossover_mask = (col1 > col2) & (prev_col1 <= prev_col2)
 
-        data[result_column] = crossover_mask.astype(int)
+        data = data.copy()
+        data.loc[:, result_column] = crossover_mask.astype(int)
 
     # Polars Implementation
     elif isinstance(data, PlDataFrame):
@@ -69,6 +70,7 @@ def crossover(
             crossover_mask = (col1 > col2) & (prev_col1 <= prev_col2)
 
         # Convert boolean mask to 1s and 0s
+        data = data.clone()
         data = data.with_columns(pl.when(crossover_mask).then(1)
                                  .otherwise(0).alias(result_column))