Refactored sheerka execution flow + Enhanced log management

tests/test_PythonEvaluator.py

@@ -0,0 +1,69 @@
+import pytest
+
+from core.builtin_concepts import ReturnValueConcept, ParserResultConcept
+from core.sheerka import Sheerka, ExecutionContext
+from core.concept import Concept
+from evaluators.PythonEvaluator import PythonEvaluator
+from parsers.PythonParser import PythonNode, PythonParser
+
+
+def get_context():
+    sheerka = Sheerka(skip_builtins_in_db=True)
+    sheerka.initialize("mem://")
+    return ExecutionContext("test", "xxx", sheerka)
+
+
+@pytest.mark.parametrize("ret_val, expected", [
+    (ReturnValueConcept("some_name", True, ParserResultConcept(value=PythonNode("", None))), True),
+    (ReturnValueConcept("some_name", True, ParserResultConcept(value="other thing")), False),
+    (ReturnValueConcept("some_name", False, "not relevant"), False),
+    (ReturnValueConcept("some_name", True, Concept()), False)
+])
+def test_i_can_match(ret_val, expected):
+    context = get_context()
+    assert PythonEvaluator().matches(context, ret_val) == expected
+
+
+@pytest.mark.parametrize("text, expected", [
+    ("1 + 1", 2),
+    ("sheerka.test()", "I have access to Sheerka !"),
+    ("a=10\na", 10),
+])
+def test_i_can_eval(text, expected):
+    context = get_context()
+    parsed = PythonParser().parse(context, text)
+
+    evaluated = PythonEvaluator().eval(context, parsed)
+
+    assert evaluated.status
+    assert evaluated.value == expected
+
+
+def test_i_can_eval_expression_with_variables():
+    """
+    I can test expression with variables
+    :return:
+    """
+    context = get_context()
+    context.sheerka.add_in_cache(Concept("foo", body="2"))
+    parsed = PythonParser().parse(context, "foo + 2")
+
+    evaluated = PythonEvaluator().eval(context, parsed)
+
+    assert evaluated.status
+    assert evaluated.value == 4
+
+
+def test_i_can_eval_module_with_variables():
+    """
+    I can test modules with variables
+    :return:
+    """
+    context = get_context()
+    context.sheerka.add_in_cache(Concept("foo", body="2"))
+    parsed = PythonParser().parse(context, "def a(b):\n    return b\na(foo)")
+
+    evaluated = PythonEvaluator().eval(context, parsed)
+
+    assert evaluated.status
+    assert evaluated.value == 2