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from pathlib import Path
from unittest import TestCase
import pyGHDL.libghdl as libghdl
from pyGHDL.libghdl import name_table, files_map, errorout_console
from pyGHDL.libghdl.vhdl import nodes, sem_lib
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 Instantiate(TestCase):
_root = Path(__file__).resolve().parent.parent
_filename : Path = _root / "SimpleEntity.vhdl"
@staticmethod
def getIdentifier(node):
"""Return the Python string from node :param:`node` identifier"""
return name_table.Get_Name_Ptr(nodes.Get_Identifier(node)).decode("utf-8")
def test_InitializeGHDL(self) -> None:
"""Initialization: set options and then load libaries"""
# Print error messages on the console.
errorout_console.Install_Handler()
# Set options. This must be done before analyze_init()
libghdl.set_option(b"--std=08")
# Finish initialization. This will load the standard package.
# if libghdl.analyze_init_status() != 0:
# self.fail("libghdl initialization error")
# Load the file
file_id = name_table.Get_Identifier(str(self._filename).encode("utf_8"))
sfe = files_map.Read_Source_File(name_table.Null_Identifier, file_id)
if sfe == files_map.No_Source_File_Entry:
self.fail("Cannot read file '{!s}'".format(self._filename))
# Parse
file = sem_lib.Load_File(sfe)
# Display all design units
designUnit = nodes.Get_First_Design_Unit(file)
while designUnit != nodes.Null_Iir:
libraryUnit = nodes.Get_Library_Unit(designUnit)
if nodes.Get_Kind(libraryUnit) == nodes.Iir_Kind.Entity_Declaration:
entityName = self.getIdentifier(libraryUnit)
self.assertEqual(entityName, "e1", "expected entity name 'e1', got '{}'".format(entityName))
elif nodes.Get_Kind(libraryUnit) == nodes.Iir_Kind.Architecture_Body:
architectureName = self.getIdentifier(libraryUnit)
self.assertEqual(architectureName, "behav", "expected architecture name 'behav', got '{}'".format(architectureName))
else:
self.fail("Unknown unit.")
designUnit = nodes.Get_Chain(designUnit)
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