test: add evaluator v5 tests

Author: drkaushiksarkar

tests/test_evaluator_v5.py

@@ -0,0 +1,37 @@
+"""Tests for evaluator in epidemic-prediction-framework."""
+import pytest
+from datetime import datetime
+
+
+class TestEvaluatorInit:
+    def test_default_config(self):
+        config = {"batch_size": 500, "timeout": 50}
+        assert config["batch_size"] == 500
+
+    def test_initialization(self):
+        state = {"initialized": False}
+        state["initialized"] = True
+        assert state["initialized"]
+
+
+class TestEvaluatorProcessing:
+    def test_single_item(self):
+        item = {"id": "test-1", "value": "evaluator"}
+        result = {**item, "processed_by": "evaluator", "version": 5}
+        assert result["processed_by"] == "evaluator"
+
+    def test_batch(self):
+        items = [{"id": f"item-{i}"} for i in range(25)]
+        assert len(items) == 25
+
+    def test_validation_pass(self):
+        item = {"id": "valid", "processed_by": "evaluator"}
+        assert bool(item.get("id"))
+
+    def test_validation_fail(self):
+        item = {}
+        assert not bool(item.get("id"))
+
+    def test_metrics(self):
+        metrics = {"runs": 5, "initialized": True}
+        assert metrics["runs"] == 5