Add support bool fp

Author: vlad-perevezentsev

dpnp/dpnp_iface_mathematical.py

@@ -2891,9 +2891,13 @@ def interp(x, xp, fp, left=None, right=None, period=None):
     x = dpnp.astype(x, x_float_type, order="C", casting="safe", copy=False)
     xp = dpnp.astype(xp, x_float_type, order="C", casting="safe", copy=False)
 
-    out_dtype = dpnp.common_type(x, xp, fp)
+    if fp.dtype == dpnp.bool:
+        # Handle bool type for `fp` to follow NumPy behavior
+        out_dtype = x_float_type
+    else:
+        out_dtype = dpnp.common_type(x, xp, fp)
 
-    fp = dpnp.asarray(fp, dtype=out_dtype, order="C")
+    fp = dpnp.astype(fp, out_dtype, order="C", casting="safe", copy=False)
 
     if period is not None:
         if not dpnp.isscalar(period):

dpnp/tests/test_mathematical.py

@@ -1150,7 +1150,7 @@ class TestInterp:
     @pytest.mark.parametrize(
         "dtype_xp", get_all_dtypes(no_complex=True, no_none=True)
     )
-    @pytest.mark.parametrize("dtype_y", get_all_dtypes(no_bool=True))
+    @pytest.mark.parametrize("dtype_y", get_all_dtypes())
     def test_all_dtypes(self, dtype_x, dtype_xp, dtype_y):
         x = numpy.linspace(0.1, 9.9, 20).astype(dtype_x)
         xp = numpy.linspace(0.0, 10.0, 5).astype(dtype_xp)
@@ -1182,7 +1182,7 @@ def test_complex_fp(self, dtype_x, dtype_y):
         assert_dtype_allclose(result, expected)
 
     @pytest.mark.parametrize(
-        "dtype", get_all_dtypes(no_bool=True, no_complex=True, no_none=True)
+        "dtype", get_all_dtypes(no_complex=True, no_none=True)
     )
     def test_left_right_args(self, dtype):
         x = numpy.array([-1, 0, 1, 2, 3, 4, 5, 6], dtype=dtype)