Add unit-tests

tests/test_config.py

@@ -0,0 +1,25 @@
+import os
+import pytest
+from unittest import mock
+from redmine_reporter.config import Config
+
+
+@mock.patch.dict(os.environ, {
+    "REDMINE_URL": "https://red.eltex.loc/",
+    "REDMINE_USER": "test",
+    "REDMINE_PASSWORD": "secret"
+})
+def test_config_valid():
+    Config.validate()  # не должно быть исключения
+
+
+@mock.patch.dict(os.environ, {}, clear=True)
+def test_config_missing():
+    with pytest.raises(ValueError, match="REDMINE_URL"):
+        Config.validate()
+
+
+@mock.patch.dict(os.environ, {"REDMINE_AUTHOR": "Иванов И.И."})
+def test_get_author():
+    assert Config.get_author("") == "Иванов И.И."
+    assert Config.get_author("Петров П.П.") == "Петров П.П."