def test_read_unsigned_short(read_test_process):
field = next(v for v in read_test_process.values
if v.type == 'unsigned short')
value = int(field.value)
with MemoryView(read_test_process.pid) as view:
assert view.read_unsigned_short(field.address) == value
def test_double_close(read_test_process):
# Double closing is invalid.
expected_message = "Can't close process handle, error code 6"
view = MemoryView(read_test_process.pid)
view.close()
with pytest.raises(RuntimeError) as ex:
view.close()
assert str(ex.value) == expected_message
# Same should happen when using context manager variant.
with MemoryView(read_test_process.pid) as view:
pass
with pytest.raises(RuntimeError) as ex:
view.close()
assert str(ex.value) == expected_message
def test_write(write_test_process):
process_info = next(write_test_process)
field1 = next(v for v in process_info.values if v.type == 'bytes')
values1 = bytes([int(num) for num in field1.value.split()])
new_values = bytes(range(len(values1)))
with MemoryView(process_info.pid, 'w') as view:
view.write(new_values, field1.address)
field2 = next(v for v in next(write_test_process).values
if v.type == 'bytes')
values2 = bytes([int(num) for num in field2.value.split()])
assert field1.address == field2.address
assert values2 != values1
assert values2 == new_values
def test_write_double(write_test_process):
process_info = next(write_test_process)
field1 = next(v for v in process_info.values if v.type == 'double')
value1 = float(field1.value)
new_value = -555.0
with MemoryView(process_info.pid, 'w') as view:
view.write_double(new_value, field1.address)
field2 = next(v for v in next(write_test_process).values
if v.type == 'double')
value2 = float(field2.value)
assert field1.address == field2.address
assert value2 != value1
assert value2 == new_value
def test_write_unsigned_short(write_test_process):
process_info = next(write_test_process)
field1 = next(v for v in process_info.values if v.type == 'unsigned short')
value1 = int(field1.value)
new_value = 36789
with MemoryView(process_info.pid, 'w') as view:
view.write_unsigned_short(new_value, field1.address)
field2 = next(v for v in next(write_test_process).values
if v.type == 'unsigned short')
value2 = int(field2.value)
assert field1.address == field2.address
assert value2 != value1
assert value2 == new_value
def test_write_char(write_test_process):
process_info = next(write_test_process)
field1 = next(v for v in process_info.values if v.type == 'char')
value1 = int(field1.value)
new_value = 3
with MemoryView(process_info.pid, 'w') as view:
view.write_char(bytes([new_value]), field1.address)
field2 = next(v for v in next(write_test_process).values
if v.type == 'char')
value2 = int(field2.value)
assert field1.address == field2.address
assert value2 != value1
assert value2 == new_value
def test_invalid_process():
# Trying to use process 0 raises an error according to API specs.
with pytest.raises(RuntimeError) as ex:
MemoryView(0)
assert str(ex.value) == "Can't open process with pid 0, error code 87"
def test_read(read_test_process):
field = next(v for v in read_test_process.values if v.type == 'bytes')
values = bytes([int(num) for num in field.value.split()])
with MemoryView(read_test_process.pid) as view:
assert view.read(len(values), field.address) == values
def test_read_double(read_test_process):
field = next(v for v in read_test_process.values if v.type == 'double')
value = float(field.value)
with MemoryView(read_test_process.pid) as view:
assert view.read_double(field.address) == value
def test_read_char(read_test_process):
field = next(v for v in read_test_process.values if v.type == 'char')
value = bytes([int(field.value)])
with MemoryView(read_test_process.pid) as view:
assert view.read_char(field.address) == value
def test_invalid_mode(read_test_process):
with pytest.raises(ValueError) as ex:
MemoryView(read_test_process.pid, 'rwx')
assert str(ex.value) == 'Invalid access mode: rwx'