amaranth/nmigen/test/test_fhdl_cd.py
2018-12-13 09:19:16 +00:00

34 lines
1 KiB
Python

from ..fhdl.cd import *
from .tools import *
class ClockDomainCase(FHDLTestCase):
def test_name(self):
pix = ClockDomain()
self.assertEqual(pix.name, "pix")
cd_pix = ClockDomain()
self.assertEqual(pix.name, "pix")
dom = [ClockDomain("foo")][0]
self.assertEqual(dom.name, "foo")
with self.assertRaises(ValueError,
msg="Clock domain name must be specified explicitly"):
ClockDomain()
def test_with_reset(self):
pix = ClockDomain()
self.assertIsNotNone(pix.clk)
self.assertIsNotNone(pix.rst)
self.assertFalse(pix.async_reset)
def test_without_reset(self):
pix = ClockDomain(reset_less=True)
self.assertIsNotNone(pix.clk)
self.assertIsNone(pix.rst)
self.assertFalse(pix.async_reset)
def test_async_reset(self):
pix = ClockDomain(async_reset=True)
self.assertIsNotNone(pix.clk)
self.assertIsNotNone(pix.rst)
self.assertTrue(pix.async_reset)