Add unit tests

numba_dpex/tests/experimental/__init__.py

@@ -0,0 +1,3 @@
+# SPDX-FileCopyrightText: 2023 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0

numba_dpex/tests/experimental/test_kernel_dispatcher.py

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+# SPDX-FileCopyrightText: 2023 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+import dpctl
+import dpnp
+
+import numba_dpex.experimental as exp_dpex
+from numba_dpex import NdRange, Range, config, dpjit
+
+
+@exp_dpex.kernel(
+    release_gil=False,
+    no_compile=True,
+    no_cpython_wrapper=True,
+    no_cfunc_wrapper=True,
+)
+def add(a, b, c):
+    c[0] = b[0] + a[0]
+
+
+def test_call_kernel_from_cpython():
+    """
+    Negative test to verify that NumPy arrays cannot be passed to a kernel.
+    """
+
+    q = dpctl.SyclQueue("gpu")
+    a = dpnp.ones(100, sycl_queue=q)
+    b = dpnp.ones_like(a, sycl_queue=q)
+    c = dpnp.zeros_like(a, sycl_queue=q)
+    r = Range(100)
+    ndr = NdRange(global_size=(100,), local_size=(1,))
+
+    exp_dpex.call_kernel(add, r, a, b, c)
+
+    assert c[0] == b[0] + a[0]
+
+    exp_dpex.call_kernel(add, ndr, a, b, c)
+
+    assert c[0] == b[0] + a[0]