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# =============================================================================
# ____ _ _ ____ _ _
# _ __ _ _ / ___| | | | _ \| | __| | ___ _ __ ___
# | '_ \| | | | | _| |_| | | | | | / _` |/ _ \| '_ ` _ \
# | |_) | |_| | |_| | _ | |_| | |___ | (_| | (_) | | | | | |
# | .__/ \__, |\____|_| |_|____/|_____(_)__,_|\___/|_| |_| |_|
# |_| |___/
# =============================================================================
# Authors:
# Patrick Lehmann
#
# Testsuite: Check libghdl IIR translation to DOM for literals.
#
# License:
# ============================================================================
# Copyright (C) 2019-2021 Tristan Gingold
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <gnu.org/licenses>.
#
# SPDX-License-Identifier: GPL-2.0-or-later
# ============================================================================
from pathlib import Path
from textwrap import dedent
from unittest import TestCase
from pyGHDL.dom.NonStandard import Design, Document
from pyGHDL.dom.Object import Constant
from pyGHDL.dom.Literal import IntegerLiteral
if __name__ == "__main__":
print("ERROR: you called a testcase declaration file as an executable module.")
print("Use: 'python -m unitest <testcase module>'")
exit(1)
class Literals(TestCase):
_root = Path(__file__).resolve().parent.parent
def test_IntegerLiteral(self):
self._filename: Path = self._root / "{className}.vhdl".format(
className=self.__class__.__name__
)
sourceCode = dedent(
"""\
package package_1 is
constant c0 : integer := 0;
constant c1 : integer := 1;
constant c2 : integer := 1024;
constant c3 : integer := 1048576;
end package;
"""
)
expected = (0, 1, 1024, 1048576)
with self._filename.open(mode="w", encoding="utf-8") as file:
file.write(sourceCode)
design = Design()
document = Document(self._filename)
design.Documents.append(document)
self.assertEqual(len(design.Documents[0].Packages), 1)
package = design.Documents[0].Packages[0]
self.assertTrue(package.Identifier == "package_1")
self.assertEqual(len(package.DeclaredItems), len(expected))
for i in range(len(expected)):
item: Constant = package.DeclaredItems[i]
self.assertTrue(isinstance(item, Constant))
self.assertTrue(item.Identifier == "c{}".format(i))
self.assertTrue(str(item.SubType.SymbolName) == "integer")
self.assertTrue(isinstance(item.DefaultExpression, IntegerLiteral))
self.assertTrue(item.DefaultExpression.Value == expected[i])
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