Coverage for hdl_registers/parser/test/test_parser/test_parser_default_register.py: 100%

1# -------------------------------------------------------------------------------------------------- 

2# Copyright (c) Lukas Vik. All rights reserved. 

3# 

4# This file is part of the hdl-registers project, an HDL register generator fast enough to run 

5# in real time. 

6# https://hdl-registers.com 

7# https://github.com/hdl-registers/hdl-registers 

8# -------------------------------------------------------------------------------------------------- 

9 

10# Third party libraries 

11import pytest 

12from tsfpga.system_utils import create_file 

13 

14# First party libraries 

15from hdl_registers.parser.toml import from_toml 

16from hdl_registers.register import Register 

17from hdl_registers.register_modes import REGISTER_MODES 

18 

19 

20def test_overriding_default_register(tmp_path): 

21 toml_path = create_file( 

22 file=tmp_path / "regs.toml", 

23 contents=""" 

24[config] 

25 

26type = "register" 

27description = "apa" 

28""", 

29 ) 

30 register_list = from_toml( 

31 name="", 

32 toml_file=toml_path, 

33 default_registers=[ 

34 Register(name="config", index=0, mode=REGISTER_MODES["r_w"], description="") 

35 ], 

36 ) 

37 

38 assert register_list.get_register("config").description == "apa" 

39 

40 

41def test_changing_mode_of_default_register_should_raise_exception(tmp_path): 

42 toml_path = create_file( 

43 file=tmp_path / "regs.toml", 

44 contents=""" 

45[config] 

46 

47mode = "w" 

48""", 

49 ) 

50 

51 with pytest.raises(ValueError) as exception_info: 

52 from_toml( 

53 name="", 

54 toml_file=toml_path, 

55 default_registers=[ 

56 Register(name="config", index=0, mode=REGISTER_MODES["r_w"], description="") 

57 ], 

58 ) 

59 assert str(exception_info.value) == ( 

60 f'Error while parsing register "config" in {toml_path}: ' 

61 'A "mode" may not be specified for a default register.' 

62 )