added not operator (#42)

* added not operator

* use BasePredicate.from_structure instead of Predicate.from_structure in Stub

* unittest for AndPredicate, OrPredicate, NotPredicate

Co-authored-by: Georgy <georgy.kulikov@aliexpress.ru>

src/mbtest/imposters/stubs.py

@@ -44,7 +44,10 @@ def from_structure(cls, structure: JsonStructure) -> "Stub":
             else:
                 responses.append(Response.from_structure(response))
         return cls(
-            [Predicate.from_structure(predicate) for predicate in structure.get("predicates", ())],
+            [
+                BasePredicate.from_structure(predicate)
+                for predicate in structure.get("predicates", ())
+            ],
             responses,
         )
 

tests/unit/mbtest/test_imposter.py

@@ -1,11 +1,17 @@
 # encoding=utf-8
 import logging
 
+import pytest
 from brunns.matchers.object import has_identical_properties_to
 from hamcrest import assert_that, instance_of
 
 from mbtest.imposters import Imposter, Proxy, Response, Stub
-from tests.utils.builders import ImposterBuilder
+from tests.utils.builders import (
+    AndPredicateBuilder,
+    ImposterBuilder,
+    NotPredicateBuilder,
+    OrPredicateBuilder,
+)
 
 logger = logging.getLogger(__name__)
 
@@ -71,3 +77,19 @@ def test_imposter_structure_roundtrip():
     # Then
     assert_that(actual, instance_of(Imposter))
     assert_that(actual, has_identical_properties_to(expected, ignoring="configuration_url"))
+
+
+@pytest.mark.parametrize(
+    "predicate", [AndPredicateBuilder, OrPredicateBuilder, NotPredicateBuilder]
+)
+def test_imposter_complex_predicates(predicate):
+    # Given
+    expected = Imposter(Stub(predicate().build()))
+    structure = expected.as_structure()
+
+    # When
+    actual = Imposter.from_structure(structure)
+
+    # Then
+    assert_that(actual, instance_of(Imposter))
+    assert_that(actual, has_identical_properties_to(expected, ignoring="configuration_url"))