Add test for perfalert resolved (#2625)

Author: kitsiosk

tests/rules/test_perfalert_resolved_regression.py

@@ -0,0 +1,36 @@
+def test_get_resolution_comment():
+    from datetime import datetime
+
+    from bugbot.rules.perfalert_resolved_regression import PerfAlertResolvedRegression
+
+    # Mock data
+    comments = [
+        {
+            "creation_time": datetime(2023, 10, 1, 10, 0),
+            "author": "[email protected]",
+            "text": "Initial comment",
+        },
+        {
+            "creation_time": datetime(2023, 10, 1, 11, 0),
+            "author": "[email protected]",
+            "text": "Bot comment",
+        },
+        {
+            "creation_time": datetime(2023, 10, 1, 12, 0),
+            "author": "[email protected]",
+            "text": "Resolution comment",
+        },
+    ]
+    bug_history = {
+        "status_time": datetime(2023, 10, 1, 12, 0),
+        "status_author": "[email protected]",
+    }
+
+    # Instantiate the class
+    perf_alert = PerfAlertResolvedRegression()
+
+    # Test the method
+    resolution_comment = perf_alert.get_resolution_comment(comments, bug_history)
+
+    # Assert the expected outcome
+    assert resolution_comment == "Resolution comment"