From 81f631a0a17bbe7c95e089012cb413a48ff798f8 Mon Sep 17 00:00:00 2001
From: Diptorup Deb <diptorup.deb@intel.com>
Date: Tue, 24 Oct 2023 11:38:52 -0500
Subject: [PATCH] Add unit tests

---
 numba_dpex/tests/experimental/__init__.py     |  3 ++
 .../experimental/test_kernel_dispatcher.py    | 40 +++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 numba_dpex/tests/experimental/__init__.py
 create mode 100644 numba_dpex/tests/experimental/test_kernel_dispatcher.py

diff --git a/numba_dpex/tests/experimental/__init__.py b/numba_dpex/tests/experimental/__init__.py
new file mode 100644
index 0000000000..3a217e6325
--- /dev/null
+++ b/numba_dpex/tests/experimental/__init__.py
@@ -0,0 +1,3 @@
+# SPDX-FileCopyrightText: 2023 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
diff --git a/numba_dpex/tests/experimental/test_kernel_dispatcher.py b/numba_dpex/tests/experimental/test_kernel_dispatcher.py
new file mode 100644
index 0000000000..b64dda13b6
--- /dev/null
+++ b/numba_dpex/tests/experimental/test_kernel_dispatcher.py
@@ -0,0 +1,40 @@
+# 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]