tests/test_api.py

   1 # SPDX-FileCopyrightText: 2023 Philippe Proulx <eeppeliteloop@gmail.com>
   2 # SPDX-License-Identifier: MIT
   3
   4 import normand
   5
   6
   7 def test_init_labels():
   8     labels = {"yo": 0x88, "meow": 123}  # type: normand.LabelsT
   9     res = normand.parse("11 22 [yo:8] 33", init_labels=labels.copy())
  10     assert res.data == bytearray([0x11, 0x22, 0x88, 0x33])
  11     assert res.labels == labels.copy()
  12
  13
  14 def test_init_vars():
  15     variables = {"zoom": 0x88, "bateau": -123.45}  # type: normand.VariablesT
  16     res = normand.parse("11 22 [zoom:8] 33", init_variables=variables.copy())
  17     assert res.data == bytearray([0x11, 0x22, 0x88, 0x33])
  18     assert res.variables == variables.copy()
  19
  20
  21 def test_init_offset():
  22     res = normand.parse("11 22 [ICITTE:8] 33", init_offset=0x23)
  23     assert res.data == bytearray([0x11, 0x22, 0x25, 0x33])
  24     assert res.offset == 0x27
  25
  26
  27 def _test_init_bo(bo: normand.ByteOrder):
  28     h_byte = 0xF8
  29     l_byte = 0x37
  30
  31     if bo == normand.ByteOrder.LE:
  32         h_byte, l_byte = l_byte, h_byte
  33
  34     res = normand.parse("11 22 [-1993:16] 33", init_byte_order=bo)
  35     assert res.data == bytearray([0x11, 0x22, h_byte, l_byte, 0x33])
  36     assert res.byte_order == bo
  37
  38
  39 def test_init_bo_be():
  40     _test_init_bo(normand.ByteOrder.BE)
  41
  42
  43 def test_init_bo_le():
  44     _test_init_bo(normand.ByteOrder.LE)
  45
  46
  47 def test_final_labels():
  48     labels = {"yo": 0x88, "meow": 123}  # type: normand.LabelsT
  49     res = normand.parse(
  50         "11 <june> 22 (77 <aug> 88) * 2 <kilo> 33", init_labels=labels.copy()
  51     )
  52     labels["june"] = 1
  53     labels["kilo"] = 6
  54     assert res.labels == labels.copy()
  55
  56
  57 def test_final_vars():
  58     variables = {"yo": 0x88, "meow": -123.45}
  59     res = normand.parse(
  60         "11 {yo = 18.2} 22 (77 {zoom = ICITTE} 88) * 2 33",
  61         init_variables=variables.copy(),
  62     )
  63     variables["yo"] = 18.2
  64     variables["zoom"] = 5
  65     assert res.variables == variables.copy()
  66
  67
  68 def test_final_offset():
  69     res = normand.parse("11 22 33 <32> 44 55")
  70     assert res.offset == 34
  71
  72
  73 def test_final_byte_order_none():
  74     res = normand.parse("11 22 33 [-19:8] 44 55")
  75     assert res.byte_order is None
  76
  77
  78 def test_final_byte_order_be():
  79     res = normand.parse("11 22 !le 33 [-19:8] 44 ( !be 88 ) * 3 55")
  80     assert res.byte_order == normand.ByteOrder.BE
  81
  82
  83 def test_final_byte_order_le():
  84     res = normand.parse("11 22 !be 33 [-19:8] 44 ( !le 88 ) * 3 55")
  85     assert res.byte_order == normand.ByteOrder.LE
  86
  87
  88 def test_no_data():
  89     res = normand.parse("# nothing to see here!\n")
  90     assert len(res.data) == 0
  91     assert len(res.labels) == 0
  92     assert len(res.variables) == 0
  93     assert res.offset == 0