Add unittests for lighter project class (NVIDIA#488)

tests/unit_test/lighter/__init__.py

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+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.

tests/unit_test/lighter/project_test.py

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+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import pytest
+
+from nvflare.lighter.spec import Project, Participant
+
+
+def create_participants(type, number, org, name):
+    p_list = list()
+    for i in range(number):
+        name = f"{name[:2]}{i}{name[2:]}"
+        p_list.append(Participant(name=name, org=org, type=type))
+    return p_list
+
+
+class TestProject:
+    def test_invalid_project(self):
+        p1 = create_participants("server", 3, "org", "server")
+        p2 = create_participants("server", 3, "org", "server")
+        p = p1 + p2
+        with pytest.raises(ValueError, match=r".* se0rver .*"):
+            _ = Project("name", "description", p)
+
+    @pytest.mark.parametrize(
+        "p_type,name",
+        [("server", "server"), ("client", "client"), ("admin", "admin@abc.com"), ("overseer", "overseer")],
+    )
+    def test_get_participants_by_type(self, p_type, name):
+        p = create_participants(type=p_type, number=3, org="org", name=name)
+        prj = Project("name", "description", p)
+        assert prj.get_participants_by_type(p_type) == p[0]
+        assert prj.get_participants_by_type(p_type, first_only=False) == p