[UFC] Use partial instead of full match for regex

eppo_client/rules.py

@@ -49,11 +49,11 @@ def evaluate_condition(
     if subject_value is not None:
         if condition.operator == OperatorType.MATCHES:
             return isinstance(condition.value, str) and bool(
-                re.match(condition.value, str(subject_value))
+                re.search(condition.value, str(subject_value))
             )
         if condition.operator == OperatorType.NOT_MATCHES:
             return isinstance(condition.value, str) and not bool(
-                re.match(condition.value, str(subject_value))
+                re.search(condition.value, str(subject_value))
             )
         elif condition.operator == OperatorType.ONE_OF:
             return isinstance(condition.value, list) and str(subject_value).lower() in [

test/rules_test.py

@@ -143,6 +143,27 @@ def test_evaluate_condition_matches():
     )
 
 
+def test_evaluate_condition_matches_partial():
+    assert evaluate_condition(
+        Condition(
+            operator=OperatorType.MATCHES, value="@example\\.com", attribute="email"
+        ),
+        {"email": "alice@example.com"},
+    )
+    assert not evaluate_condition(
+        Condition(
+            operator=OperatorType.MATCHES, value="@example\\.com", attribute="email"
+        ),
+        {"email": "alice@sample.com"},
+    )
+    assert evaluate_condition(
+        Condition(
+            operator=OperatorType.MATCHES, value="@example\\.com", attribute="email"
+        ),
+        {"email": "bob@example.com"},
+    )
+
+
 def test_evaluate_condition_not_matches():
     assert not evaluate_condition(
         Condition(