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import pytest
from pyuvm import *
pytestmark = pytest.mark.usefixtures("initialize_pyuvm")
def test_basic_slice():
"""
Test uvm_hdl_path_slice object parameters
"""
obj = uvm_hdl_path_slice("test_slice", -1, -1)
assert obj.path == "test_slice"
assert obj.offset == -1
assert obj.size == -1
def test_basic_uvm_hdl_path_concat():
"""
Test uvm_hdl_path_concat object functions specified in section 17.2.3
"""
# single slice register
reg_slice = uvm_hdl_path_slice("reg_slice", -1, -1)
reg_slice_concat_0 = uvm_hdl_path_concat("reg_slice_concat")
reg_slice_concat_0.add_slice(reg_slice)
test_slice_obj = reg_slice_concat_0.get_slices()
assert len(test_slice_obj) == 1
assert test_slice_obj[0].path == "reg_slice"
assert test_slice_obj[0].offset == -1
assert test_slice_obj[0].size == -1
def test_overlap_uvm_hdl_path_concat_0():
"""
Test uvm_hdl_path_concat overlap detection
"""
# test overlap with one DWORD register slice and a 4 bit register slice
reg_slice_0 = uvm_hdl_path_slice("reg_slice_0", 0, 32)
reg_slice_1 = uvm_hdl_path_slice("reg_slice_1", 8, 4)
reg_slice_concat_0 = uvm_hdl_path_concat("reg_slice_concat")
reg_slice_concat_0.add_slice(reg_slice_0)
with pytest.raises(Exception):
reg_slice_concat_0.add_slice(reg_slice_1)
def test_overlap_uvm_hdl_path_concat_1():
reg_slice_0 = uvm_hdl_path_slice("reg_slice_0", 0, 32)
reg_slice_1 = uvm_hdl_path_slice("reg_slice_1", 8, 4)
reg_slice_concat = uvm_hdl_path_concat("reg_slice_concat")
reg_slice_concat.add_slice(reg_slice_0)
with pytest.raises(Exception):
reg_slice_concat.add_slice(reg_slice_1)
def test_overlap_uvm_hdl_path_concat_set_slices():
# test with non-overlapping and contiguous slices
reg_slice_0 = uvm_hdl_path_slice("reg_slice_0", 0, 8)
reg_slice_1 = uvm_hdl_path_slice("reg_slice_1", 8, 1)
reg_slice_2 = uvm_hdl_path_slice("reg_slice_2", 9, 4)
reg_slice_3 = uvm_hdl_path_slice("reg_slice_3", 13, 19)
reg_slice_concat = uvm_hdl_path_concat("reg_slice_concat")
reg_slices = [reg_slice_3, reg_slice_2, reg_slice_1, reg_slice_0]
reg_slice_concat.set_slices(reg_slices)
def test_uvm_hdl_path_concat_set_slices_contiguous_wrong_order():
# test with non-overlapping and contiguous slices but with error in order
reg_slice_0 = uvm_hdl_path_slice("reg_slice_0", 0, 8)
reg_slice_1 = uvm_hdl_path_slice("reg_slice_1", 8, 1)
reg_slice_2 = uvm_hdl_path_slice("reg_slice_2", 9, 4)
reg_slice_3 = uvm_hdl_path_slice("reg_slice_3", 13, 19)
reg_slice_concat = uvm_hdl_path_concat("reg_slice_concat")
reg_slices = [reg_slice_3, reg_slice_1, reg_slice_2, reg_slice_0]
with pytest.raises(Exception):
reg_slice_concat.set_slices(reg_slices)
def test_uvm_hdl_path_concat_set_slices_non_contiguous_offsets():
# test with non-overlapping and contiguous slices but with error in order
reg_slice_0 = uvm_hdl_path_slice("reg_slice_0", 0, 8)
reg_slice_1 = uvm_hdl_path_slice("reg_slice_1", 9, 1)
reg_slice_2 = uvm_hdl_path_slice("reg_slice_2", 15, 4)
reg_slice_concat = uvm_hdl_path_concat("reg_slice_concat")
reg_slices = [reg_slice_2, reg_slice_1, reg_slice_0]
reg_slice_concat.set_slices(reg_slices)
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