Refactored to allow ConceptEvaluator

tests/test_PythonParser.py

@@ -0,0 +1,77 @@
+import ast
+import os
+import shutil
+from os import path
+
+import pytest
+
+from core.builtin_concepts import ParserResultConcept
+from core.sheerka import Sheerka, ExecutionContext
+from core.tokenizer import Tokenizer
+from parsers.BaseParser import BaseParser
+from parsers.PythonParser import PythonNode, PythonParser, PythonErrorNode
+
+tests_root = path.abspath("../build/tests")
+root_folder = "init_folder"
+
+
+@pytest.fixture(autouse=True)
+def init_test():
+    if path.exists(tests_root):
+        shutil.rmtree(tests_root)
+
+    if not path.exists(tests_root):
+        os.makedirs(tests_root)
+    current_pwd = os.getcwd()
+    os.chdir(tests_root)
+
+    yield None
+    os.chdir(current_pwd)
+
+
+def get_context():
+    sheerka = Sheerka()
+    sheerka.initialize(root_folder)
+    return ExecutionContext("test", "xxx", sheerka)
+
+
+@pytest.mark.parametrize("text, expected", [
+    ("1+1", PythonNode("1+1", ast.parse("1+1", mode="eval"))),
+    ("a=10", PythonNode("a=10", ast.parse("a=10", mode="exec"))),
+])
+def test_i_can_parse_a_simple_expression(text, expected):
+    parser = PythonParser()
+    res = parser.parse(get_context(), text)
+
+    assert res.status
+    assert res.who == parser.name
+    assert isinstance(res.value, ParserResultConcept)
+    assert res.value.value == expected
+
+
+@pytest.mark.parametrize("text, expected", [
+    ("1+1", PythonNode("1+1", ast.parse("1+1", mode="eval"))),
+    ("a=10", PythonNode("a=10", ast.parse("a=10", mode="exec"))),
+])
+def test_i_can_parse_from_tokens(text, expected):
+    parser = PythonParser()
+    tokens = list(Tokenizer(text))
+    res = parser.parse(get_context(), tokens)
+
+    assert res.status
+    assert res.who == parser.name
+    assert isinstance(res.value, ParserResultConcept)
+    assert res.value.value == expected
+
+
+def test_i_can_detect_error():
+    text = "1+"
+
+    parser = PythonParser()
+    res = parser.parse(get_context(), text)
+
+    assert not res.status
+    assert res.who == parser.name
+    assert isinstance(res.value, ParserResultConcept)
+    assert isinstance(res.value.value[0], PythonErrorNode)
+    assert isinstance(res.value.value[0].exception, SyntaxError)