You must now use 'eval' to get the body of a concept

2019-12-24 16:58:09 +01:00
parent 5c90b07e1a
commit 44e4b75cf8
37 changed files with 1003 additions and 383 deletions
@@ -0,0 +1,80 @@
+import pytest
+
+from core.builtin_concepts import ReturnValueConcept, BuiltinConcepts
+from core.concept import Concept
+from core.sheerka import Sheerka, ExecutionContext
+from evaluators.OneErrorEvaluator import OneErrorEvaluator
+from sdp.sheerkaDataProvider import Event
+
+
+def get_context():
+    sheerka = Sheerka(skip_builtins_in_db=True)
+    sheerka.initialize("mem://")
+    return ExecutionContext("test", Event(), sheerka)
+
+
+def r(value, status=True):
+    return ReturnValueConcept(value, status, value)
+
+
+reduce_requested = ReturnValueConcept("some_name", True, Concept(key=BuiltinConcepts.REDUCE_REQUESTED))
+
+
+@pytest.mark.parametrize("return_values, expected", [
+    ([r("evaluators.one error", False), reduce_requested], True),
+    ([r("evaluators.one error", False), r("failed", False), r("failed", False), reduce_requested], True),
+    ([r("evaluators.error", False), r("not a parser in success"), reduce_requested], True),
+    ([r("evaluators.no reduce required", False), r("failed", False), r("failed", False)], False),
+    ([r("evaluators.no reduce required", False)], False),
+    ([r("evaluators.error", False), r("evaluators.success"), reduce_requested], False),
+    ([r("evaluators.error", False), r("parsers.success"), reduce_requested], False),
+    ([r("evaluators.success"), r("not an evaluator in error", False), reduce_requested], False),
+    ([r("evaluators.error", False), r("evaluators.another error", False), reduce_requested], False),
+])
+def test_i_can_match(return_values, expected):
+    context = get_context()
+    assert OneErrorEvaluator().matches(context, return_values) == expected
+
+
+def test_i_can_eval():
+    context = get_context()
+
+    return_values = [
+        r("evaluators.one error", False),
+        r("parsers.failed", False),
+        r("parsers.failed", False),
+        reduce_requested
+    ]
+
+    evaluator = OneErrorEvaluator()
+    evaluator.matches(context, return_values)
+    res = evaluator.eval(context, return_values)
+
+    assert not res.status
+    assert res.body == "evaluators.one error"
+    assert len(res.parents) == 4
+
+
+def test_unwanted_return_values_are_not_eaten():
+    context = get_context()
+
+    a_successful_concept = r("successful concept")
+    a_concept_in_error = r("concept in error", False)
+    return_values = [
+        r("evaluators.one error", False),
+        r("parsers.failed", False),
+        r("parsers.failed", False),
+        a_successful_concept,
+        a_concept_in_error,
+        reduce_requested
+    ]
+
+    evaluator = OneErrorEvaluator()
+    evaluator.matches(context, return_values)
+    res = evaluator.eval(context, return_values)
+
+    assert not res.status
+    assert res.body == "evaluators.one error"
+    assert len(res.parents) == 4
+
+    assert a_successful_concept not in res.parents