78 lines
2.7 KiB
Python
78 lines
2.7 KiB
Python
import ast
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import pytest
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from core.builtin_concepts import ParserResultConcept
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from core.tokenizer import Tokenizer, LexerError
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from parsers.PythonParser import PythonNode, PythonParser, PythonErrorNode
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from tests.TestUsingMemoryBasedSheerka import TestUsingMemoryBasedSheerka
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class TestPythonParser(TestUsingMemoryBasedSheerka):
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@pytest.mark.parametrize("text, expected", [
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("1+1", PythonNode("1+1", ast.parse("1+1", mode="eval"))),
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("a=10", PythonNode("a=10", ast.parse("a=10", mode="exec"))),
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])
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def test_i_can_parse_a_simple_expression(self, text, expected):
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parser = PythonParser()
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res = parser.parse(self.get_context(), text)
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assert res.status
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assert res.who == parser.name
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assert isinstance(res.value, ParserResultConcept)
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assert res.value.value == expected
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@pytest.mark.parametrize("text, expected", [
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("1+1", PythonNode("1+1", ast.parse("1+1", mode="eval"))),
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("a=10", PythonNode("a=10", ast.parse("a=10", mode="exec"))),
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])
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def test_i_can_parse_from_tokens(self, text, expected):
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parser = PythonParser()
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tokens = list(Tokenizer(text))
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res = parser.parse(self.get_context(), tokens)
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assert res.status
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assert res.who == parser.name
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assert isinstance(res.value, ParserResultConcept)
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assert res.value.value == expected
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@pytest.mark.parametrize("text", [
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"1+",
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"'name",
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"foo = 'name"
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])
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def test_i_can_detect_error(self, text):
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parser = PythonParser()
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res = parser.parse(self.get_context(), text)
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assert not res.status
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assert res.who == parser.name
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assert isinstance(res.value, ParserResultConcept)
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assert isinstance(res.value.value[0], PythonErrorNode)
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assert isinstance(res.value.value[0].exception, SyntaxError)
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@pytest.mark.parametrize("text, error_msg, error_text", [
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("c::", "Concept name not found", ""),
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("c:: + 1", "Concept name not found", ""),
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])
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def test_i_can_detect_lexer_errors(self, text, error_msg, error_text):
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parser = PythonParser()
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res = parser.parse(self.get_context(), text)
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assert not res.status
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assert isinstance(res.body, ParserResultConcept)
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assert isinstance(res.body.body[0], LexerError)
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assert res.body.body[0].message == error_msg
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assert res.body.body[0].text == error_text
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def test_i_can_parse_a_concept(self):
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text = "c:concept_name: + 1"
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parser = PythonParser()
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res = parser.parse(self.get_context(), text)
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assert res
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assert res.value.value == PythonNode(
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"c:concept_name: + 1",
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ast.parse("__C__USE_CONCEPT__concept_name__C__+1", mode="eval"))
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