Files
Sheerka-Old/tests/parsers/test_DefConceptParser.py
T
kodjo 646c428edb Fixed #30 : Add variable support in BNF concept definition
Fixed #31 : Add regex support in BNF Concept
Fixed #33 : Do not memorize object during restore
2021-02-24 17:23:03 +01:00

644 lines
26 KiB
Python

import ast
from dataclasses import dataclass
import pytest
from core.builtin_concepts import ParserResultConcept, BuiltinConcepts, ReturnValueConcept
from core.concept import DEFINITION_TYPE_BNF, DEFINITION_TYPE_DEF, Concept, CV
from core.global_symbols import NotInit
from core.sheerka.services.SheerkaExecute import ParserInput
from core.tokenizer import Keywords, Tokenizer, LexerError
from parsers.BaseNodeParser import SCWC
from parsers.BaseParser import UnexpectedEofParsingError
from parsers.BnfDefinitionParser import BnfDefinitionParser
from parsers.BnfNodeParser import OrderedChoice, ConceptExpression, StrMatch, Sequence, RegExMatch, OneOrMore, \
VariableExpression
from parsers.DefConceptParser import DefConceptParser, NameNode, SyntaxErrorNode
from parsers.DefConceptParser import UnexpectedTokenParsingError, DefConceptNode
from parsers.FunctionParser import FunctionParser
from parsers.PythonParser import PythonParser, PythonNode
from tests.TestUsingMemoryBasedSheerka import TestUsingMemoryBasedSheerka
from tests.parsers.parsers_utils import compute_expected_array
def get_def_concept(name, where=None, pre=None, post=None, body=None, definition=None, bnf_def=None, ret=None):
def_concept = DefConceptNode([], name=NameNode(list(Tokenizer(name))))
if body:
def_concept.body = get_concept_part(body)
if where:
def_concept.where = get_concept_part(where)
if pre:
def_concept.pre = get_concept_part(pre)
if post:
def_concept.post = get_concept_part(post)
if ret:
def_concept.ret = get_concept_part(ret)
if bnf_def:
def_concept.definition = ReturnValueConcept(
"parsers.BnfDefinition",
True,
bnf_def)
def_concept.definition_type = DEFINITION_TYPE_BNF
if definition:
def_concept.definition = NameNode(list(Tokenizer(definition)))
def_concept.definition_type = DEFINITION_TYPE_DEF
return def_concept
def get_concept_part(part):
if isinstance(part, str):
node = PythonNode(part.strip(), ast.parse(part.strip(), mode="eval"))
return ReturnValueConcept(
who="parsers.DefConcept",
status=True,
value=ParserResultConcept(
source=part,
parser=PythonParser(),
value=node))
if isinstance(part, FN):
# node = PythonNode(part.strip(), ast.parse(part.strip(), mode="eval"))
nodes = compute_expected_array({}, part.source, [SCWC(part.first, part.last, *part.content)])
return ReturnValueConcept(
who="parsers.DefConcept",
status=True,
value=ParserResultConcept(
source=part.source,
parser=FunctionParser(),
value=nodes[0],
try_parsed=nodes[0]))
if isinstance(part, PN):
node = PythonNode(part.source.strip(), ast.parse(part.source.strip(), mode=part.mode))
return ReturnValueConcept(
who="parsers.DefConcept",
status=True,
value=ParserResultConcept(
source=part.source,
parser=PythonParser(),
value=node))
if isinstance(part, PythonNode):
return ReturnValueConcept(
who="parsers.DefConcept",
status=True,
value=ParserResultConcept(
source=part.source,
parser=PythonParser(),
value=part))
if isinstance(part, ReturnValueConcept):
return part
@dataclass
class PN:
"""
Python Node
"""
source: str # parser result source
mode: str # compilation mode
@dataclass
class FN:
"""
Function Node
"""
source: str
first: str
last: str
content: list
class TestDefConceptParser(TestUsingMemoryBasedSheerka):
def init_parser(self, *concepts):
sheerka, context, *updated = self.init_concepts(*concepts, singleton=True)
parser = DefConceptParser()
return sheerka, context, parser, *updated
@pytest.mark.parametrize("text, error", [
("concept", UnexpectedTokenParsingError("'def' keyword not found.", "concept", [Keywords.DEF])),
("hello word", UnexpectedTokenParsingError("'def' keyword not found.", "hello", [Keywords.DEF])),
("def hello", UnexpectedTokenParsingError("'concept' keyword not found.", "hello", [Keywords.CONCEPT])),
])
def test_i_can_detect_not_for_me(self, text, error):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
assert not res.status
assert context.sheerka.isinstance(res.value, BuiltinConcepts.NOT_FOR_ME)
assert res.value.reason == [error]
@pytest.mark.parametrize("text, expected", [
("def concept hello", get_def_concept(name="hello")),
("def concept hello ", get_def_concept(name="hello")),
("def concept a + b", get_def_concept(name="a + b")),
("def concept a+b", get_def_concept(name="a + b")),
("def concept 'a+b'+c", get_def_concept(name="'a+b' + c")),
("def concept 'as if'", get_def_concept(name="'as if'")),
("def concept 'as' if", get_def_concept(name="'as' if")),
('def concept "as if"', get_def_concept(name="as if")),
])
def test_i_can_parse_def_concept_name(self, text, expected):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
node = res.value.value
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
assert node == expected
def test_name_is_mandatory(self):
text = "def concept as 'hello'"
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
return_value = res.value
assert not res.status
assert sheerka.isinstance(return_value, BuiltinConcepts.ERROR)
assert isinstance(return_value.body[0], SyntaxErrorNode)
assert return_value.body[0].message == "Name is mandatory"
@pytest.mark.parametrize("text", [
"def concept hello\nmy friend",
"def concept hello \nmy friend",
"def concept hello\n my friend",
"def concept hello \n my friend",
"def concept hello from hello\nmy friend",
"def concept hello from def hello\nmy friend",
"def concept hello from bnf hello\nmy friend",
"def concept hello from:\n\thello\nmy friend",
"def concept hello from def:\n\thello\nmy friend",
"def concept hello from bnf:\n\thello\nmy friend",
])
def test_new_line_is_not_allowed_in_the_name(self, text):
text = "def concept hello \n my friend as 'hello'"
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
return_value = res.value
assert not res.status
assert sheerka.isinstance(return_value, BuiltinConcepts.ERROR)
assert return_value.body == [SyntaxErrorNode(None, "Newline are not allowed in name.")]
def test_concept_keyword_is_mandatory_but_the_concept_is_recognized(self):
text = "def hello as a where b pre c post d"
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
return_value = res.value
assert not res.status
assert sheerka.isinstance(return_value, BuiltinConcepts.NOT_FOR_ME)
assert isinstance(return_value.reason[0], UnexpectedTokenParsingError)
assert return_value.reason[0].message == "'concept' keyword not found."
assert return_value.reason[0].expected_tokens == [Keywords.CONCEPT]
assert return_value.reason[0].token.value == "hello"
def test_i_can_detect_empty_declaration(self):
sheerka, context, parser, *concepts = self.init_parser()
text = "def concept foo as where True"
res = parser.parse(context, ParserInput(text))
error = res.body.body[0]
assert not res.status
assert sheerka.isinstance(res.value, BuiltinConcepts.ERROR)
assert isinstance(error, SyntaxErrorNode)
assert error.message == "Empty 'as' declaration."
def test_empty_parts_are_not_initialized(self):
sheerka, context, parser, *concepts = self.init_parser()
text = "def concept foo"
res = parser.parse(context, ParserInput(text))
parser_result = res.body
node = res.body.body
assert res.status
assert sheerka.isinstance(parser_result, BuiltinConcepts.PARSER_RESULT)
assert isinstance(node, DefConceptNode)
assert node.body is NotInit
assert node.where is NotInit
assert node.pre is NotInit
assert node.post is NotInit
assert node.ret is NotInit
@pytest.mark.parametrize("part", [
"as",
"pre",
"post",
"ret",
"where"
])
def test_i_can_parse_def_concept_parts(self, part):
sheerka, context, parser, *concepts = self.init_parser()
text = "def concept foo " + part + " True"
res = parser.parse(context, ParserInput(text))
node = res.value.value
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
part_mapping = "body" if part == "as" else part
args = {part_mapping: get_concept_part("True")}
expected = get_def_concept("foo", **args)
assert node == expected
def test_i_can_detect_error_in_declaration(self):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput("def concept hello where 1+"))
return_value = res.value
assert not res.status
assert sheerka.isinstance(return_value, BuiltinConcepts.TOO_MANY_ERRORS)
def test_i_can_parse_complex_def_concept_statement(self):
text = """def concept a mult b
where a,b
pre isinstance(a, int) and isinstance(b, int)
post isinstance(res, a)
as res = a * b
ret a if isinstance(a, Concept) else self
"""
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
return_value = res.value
expected_concept = get_def_concept(
name="a mult b",
where="a,b\n",
pre="isinstance(a, int) and isinstance(b, int)\n",
post=FN("isinstance(res, a)\n", "isinstance(", ")", ["res", ", ", "a"]),
body=PN("res = a * b\n", "exec"),
ret="a if isinstance(a, Concept) else self\n"
)
assert res.status
assert isinstance(return_value, ParserResultConcept)
assert return_value.value == expected_concept
def test_i_can_parse_mutilines_declarations(self):
text = """
def concept add one to a as
def func(x):
return x+1
func(a)
"""
expected_concept = get_def_concept(
name="add one to a ",
body=PN("def func(x):\n return x+1\nfunc(a)\n", "exec")
)
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
return_value = res.value
assert res.status
assert isinstance(return_value, ParserResultConcept)
assert return_value.value == expected_concept
def test_i_can_use_colon_to_use_indentation(self):
text = """
def concept add one to a as:
def func(x):
return x+1
func(a)"""
expected_concept = get_def_concept(
name="add one to a ",
body=PythonNode(
"def func(x):\n return x+1\nfunc(a)",
ast.parse("def func(x):\n return x+1\nfunc(a)", mode="exec"))
)
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
return_value = res.value
assert res.status
assert isinstance(return_value, ParserResultConcept)
assert return_value.value == expected_concept
@pytest.mark.parametrize("text", [
"def concept name from bnf",
"def concept name from bnf ",
"def concept name from bnf as True",
])
def test_i_cannot_parse_empty_bnf_definition_when_no_definition(self, text):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
error = res.body
assert not res.status
assert sheerka.isinstance(error, BuiltinConcepts.ERROR)
assert error.body == [SyntaxErrorNode([], "Empty 'bnf' declaration")]
def test_i_can_parse_def_concept_from_bnf(self):
text = "def concept name from bnf a_concept | 'a_string' as __definition[0]"
sheerka, context, parser, a_concept = self.init_parser("a_concept")
res = parser.parse(context, ParserInput(text))
node = res.value.value
definition = OrderedChoice(ConceptExpression(a_concept, rule_name="a_concept"), StrMatch("a_string"))
parser_result = ParserResultConcept(BnfDefinitionParser(), "a_concept | 'a_string'", None, definition,
definition)
expected = get_def_concept(name="name", body="__definition[0]", bnf_def=parser_result)
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
assert node == expected
def test_i_can_parse_def_concept_from_bnf_when_using_concept_token(self):
text = "def concept name from bnf c:a_concept: 'xxx'"
sheerka, context, parser, a_concept = self.init_parser("a_concept")
res = parser.parse(context, ParserInput(text))
node = res.value.value
definition = Sequence(ConceptExpression(a_concept, rule_name="a_concept"), StrMatch("xxx"))
parser_result = ParserResultConcept(BnfDefinitionParser(), "c:a_concept: 'xxx'", None, definition, definition)
expected = get_def_concept(name="name", bnf_def=parser_result)
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
assert node == expected
def test_i_can_parse_def_concept_where_bnf_references_itself(self):
text = "def concept name from bnf 'a' + name?"
sheerka, context, parser, a_concept = self.init_parser("a_concept")
parser.parse(context, ParserInput(text))
assert not parser.has_error
@pytest.mark.parametrize("text", [
"def concept plus from bnf:\n\t'a' 'plus' 'b'",
"def concept plus from bnf :\n\t'a' 'plus' 'b'",
"def concept plus from bnf: \n\t'a' 'plus' 'b'",
])
def test_i_can_use_colon_and_bnf_definition_together(self, text):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
defined_concept = res.body.body
assert res.status
assert defined_concept.definition.status
assert defined_concept.definition.body.body == Sequence(StrMatch("a"), StrMatch("plus"), StrMatch("b"))
@pytest.mark.parametrize("text, error", [
("def concept name from def as True", SyntaxErrorNode([], "Empty 'from' declaration.")),
("def concept name from def", SyntaxErrorNode([], "Empty 'from' declaration.")),
("def concept name from def ", SyntaxErrorNode([], "Empty 'from' declaration.")),
("def concept name from as True", SyntaxErrorNode([], "Empty 'from' declaration.")),
("def concept name from", UnexpectedEofParsingError("While parsing keyword 'from'.")),
("def concept name from ", UnexpectedEofParsingError("While parsing keyword 'from'.")),
])
def test_i_can_detect_empty_def_declaration(self, text, error):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
assert not res.status
assert sheerka.isinstance(res.value, BuiltinConcepts.ERROR)
assert res.value.body[0] == error
@pytest.mark.parametrize("text", [
"def concept addition from a plus b as a + b",
"def concept addition from def a plus b as a + b"])
def test_i_can_def_concept_from_definition(self, text):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
expected = get_def_concept("addition", definition="a plus b", body="a + b")
node = res.value.value
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
assert node == expected
@pytest.mark.parametrize("text", [
"def concept plus from:\n\ta plus b",
"def concept plus from def:\n\ta plus b",
# space before the colon
"def concept plus from :\n\ta plus b",
"def concept plus from def :\n\ta plus b",
# space after the colon
"def concept plus from: \n\ta plus b",
"def concept plus from def: \n\ta plus b",
])
def test_i_can_use_colon_and_definition_together(self, text):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
defined_concept = res.body.body
defined_concept_tokens = [t.repr_value for t in defined_concept.definition.tokens]
assert res.status
assert defined_concept.definition_type == DEFINITION_TYPE_DEF
assert defined_concept_tokens == [t.repr_value for t in Tokenizer("a plus b", yield_eof=False)]
def test_i_can_use_colon_to_protect_keyword(self):
text = """
def concept today as:
from datetime import date
today = date.today()
from:
give me the date !
"""
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
defined_concept = res.body.body
defined_concept_tokens = [t.repr_value for t in defined_concept.definition.tokens]
assert res.status
assert defined_concept.definition_type == DEFINITION_TYPE_DEF
assert defined_concept_tokens == [t.repr_value for t in Tokenizer("give me the date !", yield_eof=False)]
assert defined_concept.body.status
def test_i_can_use_colon_to_protect_keyword_2(self):
text = """
def concept today as:
from datetime import date
today = date.today()
from give me the date !
"""
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
defined_concept = res.body.body
defined_concept_tokens = [t.repr_value for t in defined_concept.definition.tokens]
assert res.status
assert defined_concept.definition_type == DEFINITION_TYPE_DEF
assert defined_concept_tokens == [t.repr_value for t in Tokenizer("give me the date !", yield_eof=False)]
assert defined_concept.body.status
@pytest.mark.parametrize("text", [
"def",
"def concept_name"
])
def test_i_cannot_parse_invalid_entries(self, text):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
assert not res.status
assert sheerka.isinstance(res.body, BuiltinConcepts.NOT_FOR_ME)
assert isinstance(res.body.reason[0], UnexpectedTokenParsingError)
@pytest.mark.parametrize("text, error_msg, error_text", [
("'name", "Missing Trailing quote", "'name"),
("foo isa 'name", "Missing Trailing quote", "'name"),
("def concept 'name", "Missing Trailing quote", "'name"),
("def concept name as 'body", "Missing Trailing quote", "'body"),
("def concept name from bnf 'expression", "Missing Trailing quote", "'expression"),
("def concept c::", "Concept identifiers not found", ""),
])
def test_i_cannot_parse_when_tokenizer_fails(self, text, error_msg, error_text):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
assert not res.status
assert sheerka.isinstance(res.body, BuiltinConcepts.ERROR)
assert isinstance(res.body.body[0], LexerError)
assert res.body.body[0].message == error_msg
assert res.body.body[0].text == error_text
def test_i_cannot_parse_bnf_definition_referencing_multiple_concepts_sharing_the_same_name(self):
text = "def concept twenty one from bnf 'twenty' one"
sheerka, context, parser, *concepts = self.init_parser(Concept("one", body="1"), Concept("one", body="1.0"))
res = parser.parse(context, ParserInput(text))
assert not res.status
assert context.sheerka.isinstance(res.value, BuiltinConcepts.CANNOT_RESOLVE_CONCEPT)
assert res.value.body == ("key", "one")
@pytest.mark.parametrize("text", [
'def concept "def concept x"',
'def concept "def concept x" as x',
])
def test_i_can_use_double_quotes_to_protect_keywords(self, text):
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
concept_defined = res.value.value
assert res.status
assert concept_defined.name.tokens == list(Tokenizer("def concept x", yield_eof=False))
def test_i_can_parse_when_ambiguity_in_where_or_pre_clause(self):
sheerka, context, parser, *concepts = self.init_parser(
Concept("x is a y", pre="in_context(BuiltinConcepts.EVAL_QUESTION_REQUESTED)"),
Concept("x is a y")
)
text = "def concept foo x y where x is a y"
res = parser.parse(context, ParserInput(text))
expected_body = self.pretval(CV(concepts[0], pre=True), source="x is a y", who="parsers.DefConcept",
parser="parsers.ExactConcept")
expected = get_def_concept("foo x y", where=expected_body)
node = res.value.value
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
assert node == expected
text = "def concept foo x y pre x is a y"
res = parser.parse(context, ParserInput(text))
expected_body = self.pretval(CV(concepts[0], pre=True), source="x is a y", who="parsers.DefConcept",
parser="parsers.ExactConcept")
expected = get_def_concept("foo x y", pre=expected_body)
node = res.value.value
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
assert node == expected
def test_i_can_parse_bnf_concept_with_regex(self):
sheerka, context, parser, number = self.init_parser("number")
text = "def concept sha512 from bnf r'^[a-f0-9]{128}$'"
res = parser.parse(context, ParserInput(text))
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
node = res.value.value
parsing_expression = RegExMatch("^[a-f0-9]{128}$")
parser_result = ParserResultConcept(BnfDefinitionParser(),
"r'^[a-f0-9]{128}$'",
None,
parsing_expression,
parsing_expression)
expected = get_def_concept(name="sha512", bnf_def=parser_result)
assert node == expected
def test_i_can_parse_bnf_concept_with_a_more_complicated_bnf(self):
sheerka, context, parser, number = self.init_parser("number")
text = "def concept foo from bnf number | r'[a-f0-9]+' | (number r'[a-f0-9]+')+"
res = parser.parse(context, ParserInput(text))
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
node = res.value.value
parsing_expression = OrderedChoice(
ConceptExpression(number, rule_name="number"),
RegExMatch("[a-f0-9]+"),
OneOrMore(Sequence(ConceptExpression(number, rule_name="number"), RegExMatch("[a-f0-9]+")))
)
parser_result = ParserResultConcept(BnfDefinitionParser(),
"number | r'[a-f0-9]+' | (number r'[a-f0-9]+')+",
None,
parsing_expression,
parsing_expression)
expected = get_def_concept(name="foo", bnf_def=parser_result)
assert node == expected
def test_i_can_parse_bnf_concept_definition_with_a_variable(self):
sheerka, context, parser, number = self.init_parser("number")
text = "def concept foo from bnf number x where x"
res = parser.parse(context, ParserInput(text))
node = res.value.value
definition = Sequence(ConceptExpression(number, rule_name="number"), VariableExpression("x"))
parser_result = ParserResultConcept(BnfDefinitionParser(), "number x", None, definition, definition)
expected = get_def_concept(name="foo", bnf_def=parser_result, where="x")
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
assert node == expected
def test_i_can_parse_bnf_definition_referencing_unknown_concept(self):
text = "def concept name from bnf unknown"
sheerka, context, parser, *concepts = self.init_parser()
res = parser.parse(context, ParserInput(text))
node = res.value.value
definition = VariableExpression("unknown")
parser_result = ParserResultConcept(BnfDefinitionParser(), "unknown", None, definition, definition)
expected = get_def_concept(name="name", bnf_def=parser_result)
assert res.status
assert res.who == parser.name
assert res.value.source == text
assert isinstance(res.value, ParserResultConcept)
assert node == expected