MLIA-843 Add unit tests for module mlia.nn.rewrite

Note: The unit tests mostly call the main functions from the respective
modules only.

Change-Id: Ib2ce5c53d0c3eb222b8b8be42fba33ac8e007574
Signed-off-by: Benjamin Klimczak <benjamin.klimczak@arm.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/test_nn_rewrite_core_utils_numpy_tfrecord.py b/tests/test_nn_rewrite_core_utils_numpy_tfrecord.py
new file mode 100644
index 0000000..7fc8048
--- /dev/null
+++ b/tests/test_nn_rewrite_core_utils_numpy_tfrecord.py
@@ -0,0 +1,18 @@
+# SPDX-FileCopyrightText: Copyright 2023, Arm Limited and/or its affiliates.
+# SPDX-License-Identifier: Apache-2.0
+"""Tests for module mlia.nn.rewrite.core.utils.numpy_tfrecord."""
+from __future__ import annotations
+
+from pathlib import Path
+
+from mlia.nn.rewrite.core.utils.numpy_tfrecord import numpytf_count
+from mlia.nn.rewrite.core.utils.numpy_tfrecord import sample_tfrec
+
+
+def test_sample_tfrec(test_tfrecord: Path, tmp_path: Path) -> None:
+    """Test function sample_tfrec()."""
+    output_file = tmp_path / "output.tfrecord"
+    # Sample 1 sample from test_tfrecord
+    sample_tfrec(input_file=str(test_tfrecord), k=1, output_file=str(output_file))
+    assert output_file.is_file()
+    assert numpytf_count(str(output_file)) == 1