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# -*- coding: utf-8 -*-
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Test suite to test the :mod:`parse_type.cfparse` module.
"""
from .parse_type_test import ParseTypeTestCase, parse_number, unittest
from parse_type.cfparse import Parser
from parse_type.cardinality_field \
import MissingTypeError, CardinalityFieldTypeBuilder
# -----------------------------------------------------------------------------
# TEST CASE:
# -----------------------------------------------------------------------------
class TestParser(ParseTypeTestCase):
"""
Test :class:`parse_type.cfparse.Parser`.
Ensure that:
* parser can parse fields with CardinalityField part
even when these special type variants are not provided.
* parser creates missing type converter variants for CardinalityFields
as long as the primary type converter for cardinality=1 is provided.
"""
SPECIAL_FIELD_TYPES_DATA = [
("{number1:Number?}", ["Number?"]),
("{number2:Number+}", ["Number+"]),
("{number3:Number*}", ["Number*"]),
("{number1:Number?} {number2:Number+} {number3:Number*}",
["Number?", "Number+", "Number*"]),
]
def test_parser__can_parse_normal_fields(self):
existing_types = dict(Number=parse_number)
schema = "Number: {number:Number}"
parser = Parser(schema, existing_types)
self.assert_match(parser, "Number: 42", "number", 42)
self.assert_match(parser, "Number: 123", "number", 123)
self.assert_mismatch(parser, "Number: ")
self.assert_mismatch(parser, "Number: XXX")
self.assert_mismatch(parser, "Number: -123")
def test_parser__can_parse_cardinality_field_optional(self):
# -- CARDINALITY: 0..1 = zero_or_one = optional
existing_types = dict(Number=parse_number)
self.assertFalse("Number?" in existing_types)
# -- ENSURE: Missing type variant is created.
schema = "OptionalNumber: {number:Number?}"
parser = Parser(schema, existing_types)
self.assertTrue("Number?" in existing_types)
# -- ENSURE: Newly created type variant is usable.
self.assert_match(parser, "OptionalNumber: 42", "number", 42)
self.assert_match(parser, "OptionalNumber: 123", "number", 123)
self.assert_match(parser, "OptionalNumber: ", "number", None)
self.assert_mismatch(parser, "OptionalNumber:")
self.assert_mismatch(parser, "OptionalNumber: XXX")
self.assert_mismatch(parser, "OptionalNumber: -123")
def test_parser__can_parse_cardinality_field_many(self):
# -- CARDINALITY: 1..* = one_or_more = many
existing_types = dict(Number=parse_number)
self.assertFalse("Number+" in existing_types)
# -- ENSURE: Missing type variant is created.
schema = "List: {numbers:Number+}"
parser = Parser(schema, existing_types)
self.assertTrue("Number+" in existing_types)
# -- ENSURE: Newly created type variant is usable.
self.assert_match(parser, "List: 42", "numbers", [42])
self.assert_match(parser, "List: 1, 2, 3", "numbers", [1, 2, 3])
self.assert_match(parser, "List: 4,5,6", "numbers", [4, 5, 6])
self.assert_mismatch(parser, "List: ")
self.assert_mismatch(parser, "List:")
self.assert_mismatch(parser, "List: XXX")
self.assert_mismatch(parser, "List: -123")
def test_parser__can_parse_cardinality_field_many_with_own_type_builder(self):
# -- CARDINALITY: 1..* = one_or_more = many
class MyCardinalityFieldTypeBuilder(CardinalityFieldTypeBuilder):
listsep = ';'
type_builder = MyCardinalityFieldTypeBuilder
existing_types = dict(Number=parse_number)
self.assertFalse("Number+" in existing_types)
# -- ENSURE: Missing type variant is created.
schema = "List: {numbers:Number+}"
parser = Parser(schema, existing_types, type_builder)
self.assertTrue("Number+" in existing_types)
# -- ENSURE: Newly created type variant is usable.
# NOTE: Use other list separator.
self.assert_match(parser, "List: 42", "numbers", [42])
self.assert_match(parser, "List: 1; 2; 3", "numbers", [1, 2, 3])
self.assert_match(parser, "List: 4;5;6", "numbers", [4, 5, 6])
self.assert_mismatch(parser, "List: ")
self.assert_mismatch(parser, "List:")
self.assert_mismatch(parser, "List: XXX")
self.assert_mismatch(parser, "List: -123")
def test_parser__can_parse_cardinality_field_many0(self):
# -- CARDINALITY: 0..* = zero_or_more = many0
existing_types = dict(Number=parse_number)
self.assertFalse("Number*" in existing_types)
# -- ENSURE: Missing type variant is created.
schema = "List0: {numbers:Number*}"
parser = Parser(schema, existing_types)
self.assertTrue("Number*" in existing_types)
# -- ENSURE: Newly created type variant is usable.
self.assert_match(parser, "List0: 42", "numbers", [42])
self.assert_match(parser, "List0: 1, 2, 3", "numbers", [1, 2, 3])
self.assert_match(parser, "List0: ", "numbers", [])
self.assert_mismatch(parser, "List0:")
self.assert_mismatch(parser, "List0: XXX")
self.assert_mismatch(parser, "List0: -123")
def test_create_missing_types__without_cardinality_fields_in_schema(self):
schemas = ["{}", "{:Number}", "{number3}", "{number4:Number}", "XXX"]
existing_types = {}
for schema in schemas:
new_types = Parser.create_missing_types(schema, existing_types)
self.assertEqual(len(new_types), 0)
self.assertEqual(new_types, {})
def test_create_missing_types__raises_error_if_primary_type_is_missing(self):
# -- HINT: primary type is not provided in type_dict (existing_types)
existing_types = {}
for schema, missing_types in self.SPECIAL_FIELD_TYPES_DATA:
with self.assertRaises(MissingTypeError):
Parser.create_missing_types(schema, existing_types)
def test_create_missing_types__if_special_types_are_missing(self):
existing_types = dict(Number=parse_number)
for schema, missing_types in self.SPECIAL_FIELD_TYPES_DATA:
new_types = Parser.create_missing_types(schema, existing_types)
self.assertSequenceEqual(set(new_types.keys()), set(missing_types))
def test_create_missing_types__if_special_types_exist(self):
existing_types = dict(Number=parse_number)
for schema, missing_types in self.SPECIAL_FIELD_TYPES_DATA:
# -- FIRST STEP: Prepare
new_types = Parser.create_missing_types(schema, existing_types)
self.assertGreater(len(new_types), 0)
# -- SECOND STEP: Now all needed special types should exist.
existing_types2 = existing_types.copy()
existing_types2.update(new_types)
new_types2 = Parser.create_missing_types(schema, existing_types2)
self.assertEqual(len(new_types2), 0)
# -----------------------------------------------------------------------------
# MAIN:
# -----------------------------------------------------------------------------
if __name__ == '__main__':
unittest.main()
# Copyright (c) 2012-2013 by Jens Engel (https://github/jenisys/parse_type)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
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